id,type,date,rationale,media,description,insights,name,manufacturing_processes,tags,time_to_make,prototype_type,type_of_rationale
5,prototype,2022-04-14 10:33:30.816000+00:00,"test",tag1; tag2; 3; ,10+hr,digital,exploration
18,prototype,2022-04-25 07:41:05.833000+00:00,p87tl ;yl6rv'iuvl gkugldt.lytd gu,['2022_04_25_07_41_02_box.png'],luhkgdkdly,/fy gu;;yghb dluyg/jk; ,Test 2,"['cad_detailed_drawing', 'rough_cae', 'technical_drawing']",tag 1; design;,30-1hr,physical,exploration
44,prototype,2022-04-25 09:25:20.500000+00:00,,['2022_04_25_09_25_14_Skjermbilde_2022-04-25_kl._11.25.03.png'],Bullet points of where to capture energy from water,,Whiteboard bullet points,['sketching'],,<10min,physical,exploration
45,prototype,2022-04-25 10:00:22.900000+00:00,Explore.,['2022_04_25_10_00_19_IMG_6901.HEIC'],Axial turbine inside a pipe with generator mounted at bottom. Inspired by use case for hiking trips where you get water from rivers and streams.,Learned that electronics should be kept outside of water.,Axial turbine design concept for rivers and streams,['sketching'],,<10min,physical,exploration
46,prototype,2022-04-25 10:02:43.355000+00:00,,['2022_04_25_10_02_41_IMG_6902.HEIC'],"Assuming water speed should be increased, a flexible funnel can be made (from silicone paper?) to guide the water into the turbine from the river or stream.",,Funnel,['sketching'],,<10min,physical,exploration
47,prototype,2022-04-25 10:04:21.901000+00:00,,['2022_04_25_10_04_19_IMG_6903.HEIC'],"Assuming turbine design should be kept compact, turbine blades can be designed to be foldable to fit in a pack.",,Foldable turbine blade,['sketching'],,<10min,physical,exploration
48,prototype,2022-04-25 10:06:01.591000+00:00,,['2022_04_25_10_05_59_IMG_6904.HEIC'],"Assuming turbine design should be compact, blades can be removed to fit in a pack.",,Removable turbine blades,['sketching'],,<10min,physical,exploration
49,prototype,2022-04-25 10:08:52.624000+00:00,,['2022_04_25_10_08_49_IMG_6905.HEIC'],Off-center turbine with inlet- and outlet manifolds could allow for efficient design.,Allows electronics to be kept completely out of water. No need for seals.,Off-center Radial Turbine Design,['sketching'],,<10min,physical,exploration
50,prototype,2022-04-25 10:14:03.443000+00:00,,['2022_04_25_10_14_02_IMG_6906.HEIC'],"Assuming pressure in reservoir is not high enough, pressure can be manually increased by using a pump (bike pump, suspension pump, etc).",,Pump for manually increasing pressure,['sketching'],,<10min,physical,exploration
51,prototype,2022-04-25 10:17:09.411000+00:00,,['2022_04_25_10_17_07_IMG_6907.HEIC'],"""Otter fishing concept"" creating alternating movement. Can be dragged along boat, or placed in stream.",,Otter Design ,['sketching'],,<10min,physical,exploration
52,prototype,2022-04-25 10:21:24.713000+00:00,,['2022_04_25_10_21_14_IMG_6908.HEIC'],"Inspired by London subway escalators, generating electricity from footsteps",,Pressure Mat for Collecting Energy from Raindrops,['sketching'],,<10min,physical,exploration
53,prototype,2022-04-25 10:24:43.654000+00:00,In order to communicate the idea with other members and explore the potential use case.,['2022_04_25_10_23_18_Inverse_umbrella_1.jpeg'],Foldable self standing device that can be placed on the floor and unfolded like an umbrella in order to collect rain and generate power.,The use case of standing next to the device during rain is not realistic (who would stand on the rain to charge a phone) and too specific.,Self-standing inverse umbrella,['sketching'],Umbrella; hiking,<10min,physical,active_learning
54,prototype,2022-04-25 10:29:55.366000+00:00,To communicate the idea and another use case for the prototype.,['2022_04_25_10_28_59_Gutter_1.jpeg'],Device that you put on the end of the gutter and use it to charge a phone.,This use case should be improved so that the user can stay in the house while charging the phone.,Gutter design,['sketching'],gutter; house,<10min,physical,communication
55,prototype,2022-04-25 10:38:55.295000+00:00,To explore potential use case,['2022_04_25_10_38_50_Inverse_umbrella_2.jpeg'],Umbrella that collects rain and has generator.,we are affraid that the energy might not be enough,Inverse umbrella,['sketching'],Umbrella; hiking; walking,<10min,physical,refinement
56,prototype,2022-04-25 10:39:22.853000+00:00,Exploring protoype dimentions and design,['2022_04_25_10_36_52_20220425_123218.jpg'],Offset carboard turbine to investegate early stage dimensions,Innlet has a significant influence on the turbine blades and dimensions are good for a hose inlet,2. Offset carboard turbine for connection to reservoir,"['junking', 'card_foam_modelling']",,10-30min,physical,active_learning
57,prototype,2022-04-25 10:41:38.763000+00:00,One of the main phone charging places is sleeping space (along with living and/or working space). Thus the idea/prototype connect (extreme) rains with the place where phones are charged the most.,['2022_04_25_10_41_04_WhatsApp_Image_2022-04-25_at_12.32.20_PM.jpeg'],Electrical energy is generated from rain flow in house gutters. The hydro-generator has a cable leading to the house bedroom.,,*Gutter - bedroom charger,['sketching'],gutter; bedroom,<10min,physical,communication
58,prototype,2022-04-25 10:41:43.291000+00:00,To investegate how much water can flow through,"['2022_04_25_10_41_15_IMG_9111.MOV', '2022_04_25_10_41_30_Skjermbilde_2022-04-25_kl._12.37.21.png', '2022_04_25_10_41_32_Skjermbilde_2022-04-25_kl._12.37.25.png', '2022_04_25_10_41_35_Skjermbilde_2022-04-25_kl._12.37.29.png']",Plastic bag with plastic tube to create a large flexible funnel and a static hole for the water to run through,,2. Plastic bag with tube,"['junking', 'other']",,10-30min,physical,active_learning
59,prototype,2022-04-25 10:44:10.990000+00:00,To investigate potential use case.,['2022_04_25_10_43_53_River_1.jpeg'],The device that is placed in the river and uses its flow to generate energy.,"The prototype has potential, but the use case is too narrow. ",River charger,['sketching'],river; water flow,<10min,physical,active_learning
60,prototype,2022-04-25 10:51:14.996000+00:00,,"['2022_04_25_10_50_14_IMG_6915.HEIC', '2022_04_25_10_50_28_IMG_6915.HEIC']",Place turbine at end of tube/pipe/funnel,,2. Axial turbine design ugly prototype for rivers and streams,['junking'],,10-30min,physical,communication
61,prototype,2022-04-25 10:53:50.136000+00:00,There is a need for phone charging during city commuting.,['2022_04_25_10_53_33_WhatsApp_Image_2022-04-25_at_12.32.19_PM.jpeg'],"A city column with a funnel on the top is used to collect rain. Rain then goes to a hydro-generator that generates electrical energy. The generated energy is stored in the battery positioned in a column; furthermore, a few charging cables are peeping from the battery/column. The user could use it in both scenarios: when it's raining and when it is not. When it is raining, the user is protected by the shape of the funnel (umbrella-like).",,City column charger,['sketching'],funnel; city column; umbrella; battery,<10min,physical,communication
62,prototype,2022-04-25 10:58:17.352000+00:00,Getting quantitative data of power generation,['2022_04_25_10_58_12_278831172_5360388643985253_4804836640856633117_n.jpg'],Stepper motor generator,"It works, simple diode shows that it works. Next step is to connect measurement more than 0/1, exact numbers",Generator prototype,"['electrical', 'kits']",generator,30-1hr,physical,active_learning
63,prototype,2022-04-25 10:58:41.250000+00:00,Water flow from chiffon can be used to generated energy.,['2022_04_25_10_58_17_WhatsApp_Image_2022-04-25_at_12.32.20_PM_(1).jpeg'],"Hydro-generator is placed on the chiffon pipe, using the water flow from a sink. The Charging cable goes to the kitchen working area. ",,Chiffon Charger,['sketching'],kitchen; chiffon; sink,<10min,physical,communication
64,prototype,2022-04-25 11:15:12.727000+00:00,,['2022_04_25_11_15_11_WhatsApp_Image_2022-04-25_at_12.32.20_PM_(2).jpeg'],"Hydro-generator is placed at the end of the kitchen pipe, using the water flow from the pipe while dish washing or topping a glass. The Charging cable goes to the kitchen working area. ",,Pipe charger,['sketching'],kitchen; pipe,<10min,physical,communication
65,prototype,2022-04-25 11:25:10.917000+00:00,,['2022_04_25_11_25_08_WhatsApp_Image_2022-04-25_at_12.32.20_PM_(3).jpeg'],Hydro-generator is placed on the shower pipe before the showerhead. ,,Shower charger,['sketching'],shower; pipe,<10min,physical,communication
66,prototype,2022-04-25 11:35:03.888000+00:00,,"['2022_04_25_11_34_00_IMG_2289.HEIC', '2022_04_25_12_46_43_IMG_2289.HEIC', '2022_04_25_12_46_43_IMG_2289.HEIC']",Hydro-generator together with a battery is placed on the toilet pipe. Charger peeps from the battery.,,Toilet charger,['sketching'],bathroom; toilet,<10min,physical,communication
67,prototype,2022-04-25 11:35:45.220000+00:00,,['2022_04_25_11_31_24_IMG_20220425_125938.jpg'],Water discharge from car washing station is used to power generator which generates energy to charge your mobile phone,,Car wash,['sketching'],car wash; water discharge,10-30min,physical,communication
68,prototype,2022-04-25 11:50:21.749000+00:00,Waterfalls are often far away from the nearest electrical distribution network. Tourists can use waterfall to charge their phones and it can become a tourist attraction where they can learn something about electricity generation process.,['2022_04_25_11_50_10_IMG_20220425_125948.jpg'],Waterfall is used to power generator and charge mobile phone.,,Waterfall tourist attraction,['sketching'],waterfall; tourist attraction,10-30min,physical,communication
69,prototype,2022-04-25 11:56:00.484000+00:00,,['2022_04_25_11_55_54_IMG_20220425_125954.jpg'],Potential energy from water in the swimming pool is used when the pool is discharged to charge battery which is later used to charge mobile phone by pool visitors.,,Pool water discharge,['sketching'],pool; water discharge,10-30min,physical,communication
70,prototype,2022-04-25 12:00:27.482000+00:00,Energy is already used to power the fountains but some of it can be collected for reuse.,['2022_04_25_11_58_51_IMG_20220425_130016.jpg'],Kinetic energy in fountain is used to power generator which produces electrical energy to charge mobile phones.,,Fountain,['sketching'],fountain,10-30min,physical,communication
71,prototype,2022-04-25 12:04:51.393000+00:00,"Water in water supply system, sewage and drainage system often has significant amounts of energy which can be utilized for electricity production.",['2022_04_25_12_02_16_IMG_20220425_130028.jpg'],Water in water pipes is used to power generator to produce electrical energy for mobile phone charging station.,,Water pipes,['sketching'],water pipes,10-30min,physical,communication
72,prototype,2022-04-25 12:05:16.524000+00:00,Testing rotation princip,"['2022_04_25_12_01_14_IMG_6922.MOV', '2022_04_25_12_04_17_20220425_140306.jpg', '2022_04_25_12_04_59_IMG_6922.MOV']",Cardboard ,Internat sealing and dimensions are crucial for efficiency ,3. offset cardboard turbine with rotation,['card_foam_modelling'],test,10-30min,physical,active_learning
73,prototype,2022-04-25 12:44:28.467000+00:00,"This particular design was made to identify key elements such as, 1) How the user will feel wearing this modified backpack, 2) Is the design feasible? 3) What assembly challenges we can expect? 4) Is it possible to design a portable device that integrates into a backpack at least to a certain extent. 

We were able to make these prototypes from the scrap material lying around which sort of gave us confidence that design might work. ","['2022_04_25_12_42_12_IMG_20220425_145229.jpg', '2022_04_25_12_42_19_IMG_20220425_145209.jpg', '2022_04_25_12_42_24_IMG_20220425_134314.jpg', '2022_04_25_12_42_29_IMG_20220425_132854.jpg', '2022_04_25_12_42_39_IMG_20220425_132534.jpg', '2022_04_25_12_42_48_VID_20220425_132500.mp4', '2022_04_25_12_42_53_IMG_20220425_133449.jpg', '2022_04_25_12_43_05_IMG_20220425_133449.jpg']","Here, Ideas was how to integrate this entire concept into a backpack so that users do not have to carry additional equipment with them. We identified MUST have elements from the design challenge and tried to integrate some of them into the backpack. ","1. Farmers (Our users) actually carry backpacks with tools with them so if we integrate turbine blades as a back support as shown in the picture, that could actually help their back. It takes away a portion of the weight. 
2. Small turbine blades need to be carefully integrated into circular disks supporting them otherwise they will fall in the wrong direction making device useless. 
2. For another idea inspired by the windmill, With just enough thickness of the belts, it is possible to integrate that into the backpack's belts as shown in the picture. It will help save space inside the backpack. 
3. We also noticed that size of the turbine blade is very crucial since we have limited space inside the backpack, but increasing it any further will frustrate the users. 
4. Integrate or semi-modular design could be a good approach in a long run since chances of forgetting part of the device are low since they are integrated in the backpack but also, it might be a little tricky to make at the beginning. 
",*Design Integration Idea 1 and 2: Different ways to integrate turbine blade into a backpack,"['sketching', 'junking', 'sculpting']",,30-1hr,physical,exploration
74,prototype,2022-04-25 12:47:42.038000+00:00,,"['2022_04_25_12_46_49_IMG_9114.HEIC', '2022_04_25_12_46_52_IMG_9116.MOV', '2022_04_25_12_46_55_IMG_9117.HEIC', '2022_04_25_12_46_58_IMG_9119.HEIC', '2022_04_25_12_47_33_Skjermbilde_2022-04-25_kl._14.47.07.png', '2022_04_25_12_47_36_Skjermbilde_2022-04-25_kl._14.47.13.png', '2022_04_25_12_47_40_Skjermbilde_2022-04-25_kl._14.47.18.png']","Same as last one, but with stiffener-circle to allow to keep the structure while putting it in a river",,3. Plastic-bag-pipe,['junking'],,10-30min,physical,refinement
75,prototype,2022-04-25 12:50:31.274000+00:00,Functioning prototype to enable exploration of water reservoir heights and designs,['2022_04_25_12_49_44_Turbine_plexi.PNG'],Plexi offset portable prototype,Designing for laser cutter has some limitations and dimensions are hard to place,4. Plexi offset turbine,['cad_mock_up'],plexi,10-30min,digital,active_learning
76,prototype,2022-04-25 12:57:18.147000+00:00,"We wish to help Indian farmers to charge their phone in the farm land when they are watering plants during the middle night. Also, it should be used in other scenarios, such as camping.",['2022_04_25_12_57_10_Proto.png'],"We are going to provide a portable hydropower generator that can be used in multiple situations. We firstly were inspired by Indian farmers' stories. Because of the limitation of electricity, they are only available to pump water and water plants during the middle night. They have to use phone flashlights and this easily use up batteries of their mobile phones. We are aiming to help them at this point. In that situation, we identified three key needs from them: 1) their phone need to be charged; 2) they are moving during the middle night work so they need accessibility of charging their phones in different locations; 3) their system is controlled by a phone in somewhere in the farmland and that phone is lack of charging source sometimes, so they also need to charge that phone. 
In out initial prototype, we choose screw hydro turbine because it has the most efficiency of getting power and longitudinal increases the contact area between the water flow and the turbine. Our idea is that it should be small and easily to be putted into any places that have water flow, e.g., where the pump delivering water to the farm land. It is small that can be easily to put into a backpack. Also, it has a manual handle to get extra energy when needed. ","We understand how to explore different context under the same topic, and how to do a basic research about hydropower system. We also find out some key limitations of this hydropower, such as low efficiency, lack of accessibility of water sources and so on. All the limitations should be considered into the design.",Design Integration Idea - Multi-function hydropower machine,"['cad_mock_up', 'sketching']",,1-3hr,digital,exploration
77,prototype,2022-04-25 12:57:25.617000+00:00,,"['2022_04_25_12_56_02_IMG_2290.HEIC', '2022_04_25_13_04_18_IMG_2290.HEIC']","A tank on the top of a house roof collects rain. The rain from the tank on the top of the roof flows (when needed) to the other tank positioned lower than the top one. While water/rain flows in the pipe propels the hydro-powered generator. The energy generated is accumulated in the battery/power bank used for phone charging.
The water from the lower tank can be used for gardening or car washing.",,Multifuncional House Tank Charger,['sketching'],tank; battery; gardening,10-30min,physical,communication
79,prototype,2022-04-25 13:14:24.113000+00:00,The prototype was made to explore the possibility of using the modular design. We aimed to improve the area of applicability of the concept.,['2022_04_25_13_15_42_Modular_design_1.pdf'],"The prototype is characterized by two interfaces. The first interface (INT1) allows the user to mount each of the changeable input modules. Those include the umbrella, the gutter segment, and the kitchen pipe. The second interface (INT2) is used to secure the generator (GEN) to the surroundings. Two types are available - bolted plate and the tripod (i.e., for the use with the umbrella).","This prototype helped us to think more abstract - we started exploring the possibilities not strictly included in the task (i.e., using the generator to also harness wind energy).",Modular design 1,['sketching'],modular; kitchen; umbrella; gutter,10-30min,physical,exploration
80,prototype,2022-04-25 13:18:14.599000+00:00,"Mobile phone users would like to use cheaper and more eco-friendly mobile phone charging solutions when they are available. Rain is used to create energy, but also contributes to higher mobile phone usage since people are less physically active and spend more time indoors.",['2022_04_25_13_16_55_IMG_20220425_151546.jpg'],"Mobile phone application can collect some data from weather forecast, sensors near the electricity generator and mobile phone location to notify mobile phone users about good times for charging mobile phone if weather related source of energy is used.",People do not like to use unreliable weather-dependant charging solutions.,Mobile phone application,['sketching'],mobile phone application; weather forecast,30-1hr,physical,communication
81,prototype,2022-04-25 13:19:03.082000+00:00,Need to measure the power from the generator,"['2022_04_25_13_18_54_IMG_20220425_151349.jpg', '2022_04_25_13_18_59_IMG_20220425_151352.jpg']",Measuring the current from the generator. Testing first iteration.,"learned that we get some data out of it, does not make fully sense right now though. Next iteration is to measure it properly",1. current measurement prototype 1,"['electrical', 'coding', 'kits']",generator,1-3hr,physical,active_learning
82,prototype,2022-04-25 13:20:55.144000+00:00,"After we created the ""Modular design 1"", we started exploring additional possibilities and modules. One of those was the wind turbine module. ",['2022_04_25_13_22_13_Modular_design_2_-_wind_turbine.pdf'],"This design is a refinement of the previously generated ""Modular design 1"". An additional interface was placed onto the generator shaft, enabling the user to mount the wind turbine module. The wind turbine blades can be de-attached to make the device more compact. This will further expand the design area of applicability.",The design team briefly explored the necessary wind conditions that will produce sufficient amount of power.,Modular design 2 - wind turbine,['sketching'],modular; wind,<10min,physical,refinement
83,prototype,2022-04-25 13:31:38.183000+00:00,,['2022_04_25_13_30_44_IMG_2291.heic'],Energy is generated by a small hydro-powered turbine behind the kayak while kayaking.,,Kayaking charger,['sketching'],kayaking,<10min,physical,communication
84,prototype,2022-04-25 13:48:06.271000+00:00,Refining generator and current measurement setup. Moving towards correct voltage etc. Testing mechanics,['2022_04_25_13_47_41_IMG_20220425_154453.jpg'],"Added extra circuit stuff, resistance, capacitor","Works well, more even light in the led. Next step higher quality current measurement",2. generator design,['electrical'],generator,10-30min,physical,refinement
85,prototype,2022-04-25 13:49:08.034000+00:00,Modular designs 1 and 2 were further refined to also include the bike mounting.,['2022_04_25_13_50_25_Modular_design_3_-_bike.pdf'],Modular design 1 was further refined to also include the adapter which enables mounting on the bike shaft. Part of the torque used to drive the bike is used to generate the electricity.,The design team discussed whether the generator will have a significant effect on the necessary human-produced torque.,Modular design 3 - bike,['sketching'],modular; bike,<10min,physical,refinement
86,prototype,2022-04-25 13:50:44.503000+00:00,Testing of offset turbine design with new dimentions,['2022_04_25_13_50_30_Turbine_plexi2_.PNG'],Plexi prototype for testing electronics and water reservoirs,Last itteration 4. plexi was to weak and broke. needed bigger dimentions,5. Plexi turbine with offsett 2,"['cad_detailed_drawing', 'cad_mock_up']",plexi,1-3hr,digital,exploration
87,prototype,2022-04-25 13:55:41.020000+00:00,Prototype for testing new concepts,['2022_04_25_13_55_19_20220425_155323.jpg'],Laser cutting of turbine in plexi,"The dimensions were too weak, everything needed to be twice the dimensions to not break.",4.5 Broken plexi turbine blade,['laser_cutting'],plexi,10-30min,physical,active_learning
88,prototype,2022-04-25 13:57:40.471000+00:00,,['2022_04_25_13_57_38_Skjermbilde_2022-04-25_kl._15.53.17.png'],"Adapter from circular tube to rectangular housing inlet. Connecting the hose to the turbine housing
",,Adapter from hose to turbine,"['cad_detailed_drawing', 'cad_mock_up']",,<10min,digital,refinement
89,prototype,2022-04-25 13:57:49.381000+00:00,,"['2022_04_25_13_56_53_IMG_6924.HEIC', '2022_04_25_13_56_58_IMG_6927.HEIC', '2022_04_25_13_57_07_IMG_6929.HEIC']",Gear concept for having generator outside water with axial mounted turbine.,"Gear system should be 3D-printed.
Gear system is fragile and requires many moving parts working together (complicates design).",3. Axial turbine with gearing,['junking'],,1-3hr,physical,communication
90,prototype,2022-04-25 13:59:12.751000+00:00,Turbine for testing electronics and reservoirs in addition to active learning of making a turbine,['2022_04_25_13_58_58_Image_from_iOS.MOV'],Fysical plexi prototype,The dimensions needs to be accurate and bearing would improve rotation,6. Plexi offset turbine assembled,"['laser_cutting', '3d_printing']",plexi,1-3hr,physical,active_learning
91,prototype,2022-04-25 14:11:08.019000+00:00,To convey the concept to each other within the team and explore potential concepts,['2022_04_25_14_11_05_278912960_1694544640883085_2821798971323087040_n.jpg'],Initial concept from exisiting knowledge,people liked it,Initial pelton wheel concept,['sketching'],initial sketches; pelton;,<10min,digital,exploration
92,prototype,2022-04-25 14:15:30.269000+00:00,Same as pelton wheel but for francis,"['2022_04_25_14_15_18_Screenshot_2022-04-25_151504.png', '2022_04_25_14_25_43_279091998_536530284754023_462947217075105248_n.jpg']",Sketch of francis wheel to convey concept and explore option,ditto as pelton,Initial Francis turbine concept sketch,"['other', 'sketching']",initial sketches; francis;,<10min,digital,exploration
93,prototype,2022-04-25 14:19:13.080000+00:00,Same as pelton and francis,"['2022_04_25_14_19_06_278900454_689879648797554_1487790094037054911_n.jpg', '2022_04_25_14_19_11_278635567_1380406109142094_6085242441296684448_n.jpg']","Same as pelton and francis, but thrid option",people liked it,Initial turbine concept,['sketching'],initial sketchs; turbine;,<10min,digital,exploration
94,prototype,2022-04-25 14:21:38.556000+00:00,Needed to select our route forwards,['2022_04_25_14_21_37_279053588_409587614342617_5298212150406754902_n.jpg'],Selected scenario and concept based on pugh matrix,Pelton wheel seems the best bet,Concept selection,['other'],initial sketches; concept selection;,10-30min,digital,communication
96,prototype,2022-04-25 14:24:55.103000+00:00,"In order to increase our undersatnding of the best scenario to operate in, we did a dive on potential options and came up with this.",['2022_04_25_14_24_54_279130299_696371378229435_1629318886566418752_n.jpg'],Finalising the scenario in which our concept will operate,Worked out height and head and other operational parameters,Scenario selection,"['sketching', 'hand_calc']",scenario; pelton;,10-30min,digital,active_learning
97,prototype,2022-04-25 14:28:17.876000+00:00,Wanted to break down the product into smaller subsections to identify required design tasks ,['2022_04_25_14_28_15_278861268_471778078027206_1704320699758865743_n.jpg'],Functional decomposition,identified required tasks and probale needed prototypes,Breakdown of product - wheel,['other'],functional decomposition;,10-30min,digital,active_learning
98,prototype,2022-04-25 14:33:12.043000+00:00,TO communicate the idea and its subsystems,['2022_04_25_14_33_10_278979854_529932671835749_5975614318915749010_n.jpg'],An outline of how the design will work,we broke down the concept into its constituent subsystems,Pelton wheel concept*,['sketching'],pelton;,<10min,digital,communication
99,prototype,2022-04-25 14:35:11.310000+00:00,same as wheel,['2022_04_25_14_35_10_278876115_1076319013300560_616639195511756369_n.jpg'],Same as for wheel,same as wheel,breakdown of product - tube,"['hand_calc', 'other']",pelton; functional decomposition;,<10min,digital,active_learning
100,prototype,2022-04-25 14:38:21.029000+00:00,same as wheel,['2022_04_25_14_38_19_278929770_495912888981861_514756315320909612_n.jpg'],same as wheel,same as wheel,breakdown of product - electronics and drive,"['sketching', 'other']","pelton, functional decomposition",<10min,digital,active_learning
101,prototype,2022-04-25 14:39:29.576000+00:00,same as wheel,['2022_04_25_14_39_27_279176518_1103150560246123_9026570254151919857_n.jpg'],same as wheel,same as wheel,breakdown of product -  nozzle,"['sketching', 'other']",pelton; functional decomposition;,10-30min,digital,active_learning
102,prototype,2022-04-25 14:44:39.905000+00:00,explore the potential options,['2022_04_25_14_44_28_278832762_2498728126929576_5545100061862359979_n.jpg'],Spitballing nozzle designs within the group,Decided on what options to investigate and in which order,Nozzle designs,['sketching'],pelton; nozzle;,10-30min,digital,exploration
103,prototype,2022-04-25 14:46:30.477000+00:00,Spitballing ideas,['2022_04_25_14_46_18_278910173_1151756588917843_4447977174641161800_n.jpg'],"Spitballing more ideas, this one has potential to be better at jet controll, but is more complex. ","see descirption, could be good but might be too complex. thought of a way to test different spear placement",webster and spear nozzle sketch,['sketching'],nozzle; webster; spear;,<10min,digital,exploration
104,prototype,2022-04-25 14:49:36.486000+00:00,to convey a concept to the group.,['2022_04_25_14_49_35_278917738_761896985183282_4014403698074686615_n.jpg'],Explanation of a concept of how to maintain a constant head of water.,we need to buy a 2l bottle of coke. - also thinking about interfaces and how we do it,Head storage sketch,['sketching'],tube; water;,<10min,digital,communication
105,prototype,2022-04-25 14:52:35.223000+00:00,"We need to test? easier than testing full concepts, doesn't need a wheel and is numerically comparable","['2022_04_25_14_52_12_278959841_501985741568103_4185608070804241294_n.jpg', '2022_04_25_14_52_19_278850474_1152486595546488_6732348025934080924_n.jpg']","Need a way to compare different vanes and nozzles, this was our concept","We think it'll work, now to make it",Test rig for testing performance of vanes and nozzles - sketch,['sketching'],testing; nozzles; vanes;,<10min,digital,communication
106,prototype,2022-04-25 14:53:01.842000+00:00,The prototype was made in order to learn how to correctly connect and process the output of the motor such that its power output could be read by the Arduino via the power sensor,['2022_04_25_14_28_00_279033225_1172353830228508_4811408325832827497_n.jpg'],"Includes all electronics components, including motor, sensor, bridge rectifier to provide DC input to power sensor, and Arduino","stepper motor wiring is more complex that initially estimated, learned how to setup serial communication with sensor from Arduino",Electronics Model,"['electrical', 'coding']",Breadboard,30-1hr,physical,active_learning
107,prototype,2022-04-25 14:54:09.285000+00:00,Exploring options of nozzle interfaces,['2022_04_25_14_54_08_279095714_401168161585853_8412454982029331655_n.jpg'],Sketch of plug style hose connector,"Not sure it will work, we will look for other options off the shelf",Tube connector,['sketching'],sketch; hose; connector;,<10min,digital,communication
108,prototype,2022-04-25 14:56:54.624000+00:00,Needed to test whether a 3D printed adapter would work,"['2022_04_25_14_56_43_279206698_1187728315309160_6025654193040602040_n.jpg', '2022_04_25_14_56_47_bottle_connector_3.stl', '2022_04_25_14_56_52_279145858_279543870932969_2494521369754306385_n.jpg']",A test connector between a bottletop and hose ends bought at shop.,"It did, but leaks a bit under pressure - needs some waterproofing.",Bottle hose connector,"['cad_mock_up', '3d_printing']",connectors; tube;,30-1hr,physical,active_learning
109,prototype,2022-04-25 14:58:01.240000+00:00,To have a model for 3D printing,['2022_04_25_14_57_57_Screenshot_2022-04-25_165604.png'],Commencement of shaping the Kaplan profile,Endless possibilities to design a blade profile,Initial CAD model *,['cad_mock_up'],CAD,1-3hr,digital,active_learning
110,prototype,2022-04-25 14:58:57.661000+00:00,"Wanted to get a ""feel"" for the force due to water head.","['2022_04_25_14_58_56_Image_from_iOS.MOV', '2022_04_25_15_08_17_Image_from_iOS.MOV']",Testing that the head from a single m of water gave some force on the water.,Looks good! now we need something a bit longer!,Tube Test,['junking'],tubes; water;,<10min,physical,active_learning
111,prototype,2022-04-25 15:01:05.006000+00:00,Lego models help to understand the basic design scenario to be created and communicated. ,['2022_04_25_15_00_42_Image_from_iOS_(2).jpg'],,,Lego Model,['kits'],,10-30min,physical,communication
112,prototype,2022-04-25 15:01:34.787000+00:00,Need to test baby,"['2022_04_25_15_01_29_Image_from_iOS.jpg', '2022_04_25_15_01_32_Image_from_iOS_(1).jpg']",Initial set up of test rig. - LEGO.,"Its a bit rubbish, but a good first try.",Test rig v1,['kits'],lego; testing; nozzles; vanes;,10-30min,physical,refinement
113,prototype,2022-04-25 15:05:40.222000+00:00,Needed to test the thread worked before printing a load of test nozzles.,"['2022_04_25_15_05_35_Image_from_iOS_(3).jpg', '2022_04_25_15_05_38_Image_from_iOS_(2).jpg']",Test that fusion generated BSP threads work with the store bought pipe adaptors.,Works a treat! but is very tight so will need to put some flanges (like wing nuts - ish?) on the nozzles so we can get them on and off.,Test male BSP thread for nozzles,['3d_printing'],Testing; hoses; connectors; nozzles;,10-30min,physical,active_learning
114,prototype,2022-04-26 08:56:44.044000+00:00,Check if ptfe tape helps reduce leaks,['2022_04_26_08_56_41_279148089_294921062817624_1527651037744816480_n.jpg'],Added PTFE tape to check whether this stops leaks,"Yes, but there is still some leaking from the bottle - might add more tape?
",Bottle hose connector w ptfe tape,['other'],connectors; water;,<10min,physical,refinement
115,prototype,2022-04-26 09:08:27.486000+00:00,Need no leaks,['2022_04_26_09_08_24_279033071_408247550753271_555512729170138305_n.jpg'],will more ptfe tape work?,No leaks! job done.,bottle hose connector EVEN MORE PTFE,['other'],water; connectors;,<10min,physical,refinement
116,prototype,2022-04-26 09:57:34.956000+00:00,,['2022_04_26_09_57_33_Skjermbilde_2022-04-26_kl._11.57.25.png'],2L waterjug with valve underneeth to control waterflow for future testing,,Waterjug with valve,['junking'],,10-30min,physical,exploration
117,prototype,2022-04-26 10:05:42.381000+00:00,validating power measurement,['2022_04_26_10_05_37_IMG_20220426_115746.jpg'],Measuring using mutimeter as reference. Drill as power generation,something wrong with the voltage measurement,3. generator and power measurement,"['electrical', 'coding']",generator,10-30min,physical,refinement
118,prototype,2022-04-26 10:09:36.390000+00:00,,"['2022_04_26_10_08_14_Skjermbilde_2022-04-26_kl._12.05.10.png', '2022_04_26_10_09_25_Skjermbilde_2022-04-26_kl._12.05.15.png', '2022_04_26_10_09_32_IMG_9127.MOV']",Tube added to test with water,,7. Plexi offsett turbine watertest,['manual_tool'],,<10min,physical,active_learning
119,prototype,2022-04-26 10:11:21.101000+00:00,,"['2022_04_26_10_11_11_IMG_9129.MOV', '2022_04_26_10_11_19_Skjermbilde_2022-04-26_kl._12.05.10.png']",Assembly of the plastic bag and plexi turbine - plexi housing system,,*8. Plexy offsett turbine mounted with plastic bag,"['junking', 'manual_tool']",Assembly,<10min,physical,active_learning
120,prototype,2022-04-26 10:31:14.627000+00:00,Need to verify that the output of the motor required rectifying,['2022_04_26_10_31_11_279089473_2216621188505547_8224184963661511952_n.jpg'],"Setup including stepper motor, a dummy load and an oscilloscope reading off the voltage over the dummy load",the output of the motor does need to be rectified,Stepper Motor Signal Test,['electrical'],Breadboard; Oscilloscope,<10min,physical,active_learning
121,prototype,2022-04-26 11:20:17.872000+00:00,"To test the use of a proper nozzle compared to the one that comes with the hose, hopefully will be better",['2022_04_26_11_20_14_Nozzlewithnose.stl'],A simple nozzle to use on the test rig before we get a better one,"Nozzles are good, but theres definitely room for improvement",Original conical nozzle with spout,"['cad_mock_up', '3d_printing']",nozzles;,10-30min,physical,active_learning
122,prototype,2022-04-26 11:23:51.370000+00:00,Testing the space for different nozzle types so that we can experiment and refine the nozzle design,['2022_04_26_11_23_48_Nozzle4-50-2_v1.stl'],"One example of the various potential nozzles, varying length, aperture and wall thickness. About 30 different ones are available but not all printed or tested as we will whittle them down in advance","None so far, will know after tests",Example of nozzle designs that may be printed,['cad_mock_up'],nozzles;cad;,30-1hr,digital,exploration
123,prototype,2022-04-26 11:30:15.298000+00:00,"Read up on it more, then used the paper to work out what we would need to be doing","['2022_04_26_11_30_03_Webster.stl', '2022_04_26_11_30_12_1-s2.0-S0007850607623373-main(1).pdf']","After more research the webster one should be doable, here is the first example of a simple webster nozzle and the paper showing how to use it and what benefit can be garnered from it. Liquid cutting is a similar usecase as a pelton wheel as small jet high speed.","Fancier nozzles are maybe better, will have to compare them to our conical onesto see if they make any difference in a real life scenario",Webster nozzle original,"['sketching', 'cad_mock_up', 'hand_calc']",nozzles,1-3hr,digital,refinement
124,prototype,2022-04-26 11:33:59.672000+00:00,Refinement on pervious test of motor output that did not have a rectifier,"['2022_04_26_11_31_49_279089473_2216621188505547_8224184963661511952_n.jpg', '2022_04_26_11_33_53_279013849_405096431139210_1078181795061661836_n.jpg']",Test of rectifier bridge to verify that the input signal to the power sensor will be DC,Rectifier works as intended,Stepper Motor With Rectifier Signal Test,['electrical'],Rectifier; Oscilloscope; Breadboard,<10min,physical,refinement
125,prototype,2022-04-26 11:44:21.384000+00:00,"The original electonics model had very loose electrical connections, therefore need to refine this and solder the connectors",['2022_04_26_11_44_17_278906512_317968287150212_5037658574209605031_n.jpg'],Testing connections on power sensor's (now soldered) connector,all electrical connections are now sound,Sensor Connections,['electrical'],Soldering,<10min,physical,refinement
126,prototype,2022-04-26 11:46:25.009000+00:00,,"['2022_04_26_11_46_05_Skjermbilde_2022-04-26_kl._13.45.14.png', '2022_04_26_11_46_25_Skjermbilde_2022-04-26_kl._13.46.14.png']",Holding the motor in place to the turbine box,It broke because senter hole was too small,Motorbracket,"['cad_detailed_drawing', 'laser_cutting']",Plexi,10-30min,physical,refinement
127,prototype,2022-04-26 11:48:13.257000+00:00,,"['2022_04_26_11_48_06_Skjermbilde_2022-04-26_kl._13.45.18.png', '2022_04_26_11_48_09_Skjermbilde_2022-04-26_kl._13.47.47.png', '2022_04_26_11_48_11_Skjermbilde_2022-04-26_kl._13.47.55.png']",Motorbracket to hold the motor in place and centered onto the turbine rotational axis,It fit and is ready to be mounted on the turbine box,2. Motorbracket,"['cad_detailed_drawing', 'laser_cutting']",Plexi,10-30min,physical,refinement
128,prototype,2022-04-26 11:49:09.418000+00:00,Needed to verify the correct wiring method the power sensor,['2022_04_26_11_48_22_278984573_1695778390770526_5804892565725224948_n.jpg'],"Power sensor reading off input from power supply over dummy load, sending output to Arduino",The sensors must read in power over a dummy load and setup of logging of power sensor readings via the Arduino,Power Supply and Power Sensor,['electrical'],Breadboard,10-30min,physical,active_learning
129,prototype,2022-04-26 11:51:43.006000+00:00,Was improved from the last design to make the water hit the turbine with an angle,"['2022_04_26_11_51_03_Skjermbilde_2022-04-26_kl._12.38.30.png', '2022_04_26_11_51_09_Skjermbilde_2022-04-26_kl._13.50.54.png']",Adapter from circular tube to rectangular housing inlet. Connecting the hose to the turbine housing,,2. Adapter from hose to turbine,"['cad_detailed_drawing', '3d_printing']",,<10min,physical,refinement
130,prototype,2022-04-26 11:52:54.926000+00:00,Refinement of original electronics model,"['2022_04_26_11_52_43_Test1.csv', '2022_04_26_11_52_47_279154792_321434740136715_7963996126123942263_n.jpg']","Updated setup of all electrical components, now with correction wiring and rectifier",The sensor now correctly logs power output of the motor,Electronics Model V2,['electrical'],Breadboard; Arduino,30-1hr,physical,refinement
131,prototype,2022-04-26 11:53:15.699000+00:00,Slight improvement to usability of nozzles,['2022_04_26_11_53_14_Webster-5As-wings_v1.stl'],"Added wings to the sides of the nozzle, will make it easier to change out speeding up tests","Only thought about the performance of the nozzle and neglected usability, this should not affect how it performs",Winged webster nozzle,['cad_mock_up'],nozzles;cad;,10-30min,digital,refinement
132,prototype,2022-04-26 12:39:10.233000+00:00,"Refinement of Electronics model V2 with higher power output from motor, as now using both poles","['2022_04_26_12_39_02_278921836_1821091618076439_3496801738484125287_n.jpg', '2022_04_26_12_39_06_279029949_2290164464463929_3951839566087221560_n.jpg']",New electronics model will both poles of the motor connected via rectifiers and a low pass filter for power smoothing,Improved power from motor,Electronics Model V3,"['coding', 'electrical']",Breadboard;Arduino,30-1hr,physical,refinement
133,prototype,2022-04-26 12:45:22.874000+00:00,The turbine was further researched and initial dimensions were selected in this prototype. The outputs will help streamline further design activities.,['2022_04_26_12_45_16_Pelton.png'],"Model of Pelton turbine in Solidworks for our use case. The number of buckets = 1, number of nozzles = 1, Blade width = 15,5 mm",Additional work needed regarding the turbine sizing to ensure near-optimal efficiency. Possibly use the optimization process.,*Pelton turbine,['cad_mock_up'],model; pelton; turbine,1-3hr,digital,exploration
134,prototype,2022-04-26 13:14:00.857000+00:00,"Since the design team was not familiar with the characteristics of turbine types. Hence, it was necessary to get familiar with the field.",['2022_04_26_13_15_13_Turbine_type_selection.docx'],"This note was included to ensure the design traceability; before creating further prototypes, it was necessary to determine which turbine type will be used. In this case, the gutter scenario was assumed. ","We have considered three types of turbines - Pelton, Turgo, and crossflow.",Turbine type selection - active learning,['hand_calc'],selection; scenario,30-1hr,digital,active_learning
135,prototype,2022-04-26 13:22:01.757000+00:00,"We are considering multiple turbine designs. This is one of them. We are carefully changing the dimensions (length and diameter) of the model to understand how it might impact the flow of the water over the turbine resulting in rpm changes in a stepper motor. 
To generate enough electricity, water needs to generate enough rpm of motors but rpm also depends on how long water can make the turbine rotate. In this particular model, we are extended length but reduced diameter of the turbine to create a scenario where water takes more time to go out of the turbine but to keep design compact, limiting the diameter. 
","['2022_04_26_13_21_39_1.png', '2022_04_26_13_21_44_2.png', '2022_04_26_13_21_52_3.png', '2022_04_26_13_21_57_4.png']","We tried to understand what's the main difficulty of building a portable hydropower system turbine. Basically, we have to create a detailed engineering CAD model of a turbine blade to understand how long it would take to do this using the 3D printing process. ","The design is pretty complex and a simple mock-up design was not good enough to give a proper idea about the performance of this design.  But we also calculated the surface area available to understand how it might play a role in water flow. 
Design requires careful tradeoffs. This one trading length is 30cm and the diameter is 10cm.  We realized that along with length and diameter, the thickness of the turbine blade is another tricky aspect we need to handle and the selection of material will play a vital role. 
",*Turbine Blade Design 1,"['cad_detailed_drawing', 'hand_calc']",,30-1hr,digital,active_learning
136,prototype,2022-04-26 13:20:43.048000+00:00,"This prototype is the first attempt in creating the housing for the turbine. It will serve as the base to develop other prototypes, before the final one is selected for the manufacturing.",['2022_04_26_13_22_02_Turbine_housing_-_gutter_scenario_(Pelton).pdf'],"The turbine housing was designed for the Pelton turbine. The gutter scenario was assumed. The housing is made of two segments to enable easier manufacturing and assembly. The water enters the turbine through the horizontal nozzle, which increases the flow speed, while the output is directly below the turbine shaft (as required in Pelton turbines). The design is fastened to the surroundings via pegs (similarly to tent pegs).","The design team noticed the shaft positioning problem. Furthermore, additional care should be taken when sealing the housing.",Turbine/device housing (Pelton) - gutter scenario,['sketching'],gutter; housing; Pelton turbine,10-30min,digital,exploration
137,prototype,2022-04-26 13:40:27.463000+00:00,"In the previous design, we kept the length longer ( diameter of 10 cm by 30 cm length) Here we tried to optimize it by reducing the length to just 15 cm compared to the previous version. Idea was to reduce the bulkiness of the product due to its larger length. ","['2022_04_26_13_35_12_6.png', '2022_04_26_13_37_52_5.png', '2022_04_26_13_40_24_7.png']","Similar to the previous model, this is a different iteration of the same design. Here we tried to make it more portable by reducing its dimensions. Dimension 20 cm in length by 15 cm diameter.","For the loss of length of the turbine, which provided additional surface area, we needed to compensate for it somehow. We modified this design where we reduced length but increased diameter to 20 cm to make sure the surface area is similar to the previous model based on calculations.  This was pretty tricky because the increasing diameter is likely to increase weight also so how much thickness of the turbine blade is ideal. 
We played with some thin metal sheets to understand how weight fluctuates based on diameter but using a cardboard model was the best idea to understand and explained separately. ",*Turbine Blade Design 2,"['cad_detailed_drawing', 'hand_calc']",,30-1hr,digital,refinement
138,prototype,2022-04-26 13:50:39.460000+00:00,"The prototype was made to explore a parallel avenue on how this mechanism (traditional hydropower generator) could be made, in other iterations we were focused on a screw hydropower generator in this iteration we wanted to go back to our original starting point and step back from our current idea to better understand other possibilities.",['2022_04_26_13_49_50_IMG_0766.PNG'],Watermills inspired this traditional hydraulic design. This digital mockup stands for a parallel exploration of the mechanical design of the hydraulic system.,"Based on this design, we will further explore its modularity and make the surface calculations to know which prototype is more efficient",*Turbine Blade Design 3,['cad_mock_up'],,30-1hr,digital,exploration
139,prototype,2022-04-26 13:51:59.068000+00:00,,['2022_04_26_13_51_55_Pelton_calculation.png'],"Calculation of the the Pelton turbine for a use case scenario. Chosen diameter of the turbine is 100 mm, nozzle diameter is 5 mm, number of nozzles is 1, number of buckets is 18. Dimension that we vary for our prototype is net head.",,Pelton calculation,['hand_calc'],calculation; turbine; pelton,30-1hr,digital,exploration
140,prototype,2022-04-26 13:51:53.107000+00:00,to see how how to create a physical electoric test rig,"['2022_04_26_13_49_09_Shema1.jfif', '2022_04_26_13_49_11_Shema2.jfif']",The energy measurement rig schema includes the scheme to make stepper motor a generator with capacitors connected so that the output voltage is the highest possible.,,Energy measurement rig - plans,"['electrical', 'sketching']",test rig; energy measurement,10-30min,physical,active_learning
141,prototype,2022-04-26 13:53:50.587000+00:00,to see which scheme to use,['2022_04_26_13_55_07_Shema1.jfif'],The energy measurement rig schema includes the scheme to make stepper motor a generator with capacitors connected so that the output power is the highest possible.,,Energy measurement rig - plan 2,"['sketching', 'electrical']",test rig; energy measurement,<10min,physical,active_learning
142,prototype,2022-04-26 13:56:35.492000+00:00,"Idea is we need to be able to change the length of the turbine blade and a foldable design would make it so much easier to carry around. For that we do have Paper, Plastic and rubber material to explore. We tried with the paper. ","['2022_04_26_13_55_52_IMG_20220426_154607.jpg', '2022_04_26_13_55_56_IMG_20220426_154553.jpg', '2022_04_26_13_56_33_Screenshot_2022-04-26_at_15.14.47.png']",Here we took inspiration from Japanese origami art and NASA is trying to create foldable satellites using the same techniques. Idea was to create a turbine blade using a foldable structure. ,This was the most complicated I did in years and years. It took more than 100 FOLDS on a piece of paper to create this model and this was HARD. Origami looks great as an art and it is useful but practical applications are ridiculously time-wasting and unreliable if time is not enough. Although we all really liked the ideas but need a lot more time to actually try it with different materials and see which one is the easiest. ,Origami inspired design 4,['other'],,3-5hr,physical,exploration
143,prototype,2022-04-26 14:03:25.253000+00:00,,['2022_04_26_14_03_22_Skjermbilde_2022-04-26_kl._16.01.07.png'],Listing up ideas to reduce friction,,9. Whiteboard with checkpoints to reduce friction,['sketching'],,<10min,physical,exploration
144,prototype,2022-04-26 14:03:59.836000+00:00,"We tried to understand in case we can not 3D print items on time, what other material we can quickly use to build the design. Here we were trying to understand what the assembly would look like at the end. What additional supporting structure we might need, and how the water will enter and exit the system.  ","['2022_04_26_14_03_48_VID_20220426_161550.mp4', '2022_04_26_14_03_55_IMG_20220426_160739.jpg']",We were just trying to understand how the actual assembly would work for this type of design.,We got a better idea of what the supporting frame would look like. It was a very but very useful prototyping experience that gave us actual hard data. ,*Turbine Design Mock Up,"['sketching', 'hand_calc', 'junking', 'manual_tool']",,30-1hr,physical,active_learning
145,prototype,2022-04-26 14:04:54.441000+00:00,"To see how much energy is produced by the generator while moving it with hands, and to provide a measurement setup for the final design. ","['2022_04_26_14_06_11_WhatsApp_Image_2022-04-26_at_16.02.33.jpeg', '2022_04_26_14_06_13_WhatsApp_Image_2022-04-26_at_16.02.32.jpeg']",The energy measurement rig schema to make stepper motor a generator with capacitors connected so that the output power is the highest possible.,"We found out that the working mode with doubled output current rather than doubled voltage is better for the provided sensor, since it has the max input voltage of 36V. We also found out that the voltages with the hand movement are around 10-20 V so we expect higher voltages from the hydrogenerator, so we have to be careful not to burn the sensor. We also got the feeling that the stepper motor would not be that easy to rotate.",Energy measurement rig,"['electrical', 'coding']",test rig; energy measurement,1-3hr,physical,active_learning
146,prototype,2022-04-26 14:07:35.429000+00:00,fixing problems with the previous design.,['2022_04_26_14_07_32_IMG_20220426_134209.jpg'],Actually working generator and power measurement,"We had some wrong connections in the generator setup resulting in low voltage measured. Now it works, which the test shows. ",4. working generator,"['electrical', 'coding']",generator,1-3hr,physical,refinement
147,prototype,2022-04-26 14:16:13.741000+00:00,The prototype was made based on previous physical model with tighter toleranses and a re-designed wheel. Taking out dxf files for the laser cutter is easy when having the 3d model,['2022_04_26_14_16_10_Turbine_3.PNG'],New cad model based on learnings from previous physical prototype,Still hard to get a feeling for if the design is working or not based on the model. but tolerances are easier to place,7. v2 plexi offset turbine CAD,['cad_mock_up'],CAD,1-3hr,digital,refinement
148,prototype,2022-04-26 14:19:09.200000+00:00,New more effective wheel with bearings for reduced friction,['2022_04_26_14_19_07_20220426_132742.jpg'],3d printing of new turbine wheel,"New spacers adapted to the bearings could be implemented in the bearings. tolerances are rought, and have to be modified due for reduced friction",v2. turbine wheel,['3d_printing'],3d printing,10-30min,physical,refinement
149,prototype,2022-04-26 14:22:40.746000+00:00,A new house to reduse friciton made from plexi. ,['2022_04_26_14_22_37_20220426_132746.jpg'],A new house for reduced friction in plexi. The house is made by a combination of 3mm and 6mm plexi. The outer walls have new bearing slots in addition to new spacing trying to reduce impeller friction,THe plexi laminates are hard to accurately glue together as tolerances have to be exact. An additional 3mm width compared to the cad was added to make room for the turbine wheel,8. Turbine house in plexi v2,['laser_cutting'],plexi,30-1hr,physical,refinement
150,prototype,2022-04-26 14:23:45.718000+00:00,Seeing how well the spoon would work as it is an off-the-shelf part. Only problem is that it doesnt have the same momentum reversing properties that we need.,['2022_04_26_14_23_42_Video_of_spoon_test.MOV'],Using a spoon as a vane/bucket on the scale test ,Needs a tighter curve to throw the water back,Testing the spoon as a vane,"['kits', 'junking']",,10-30min,physical,exploration
151,prototype,2022-04-26 14:23:59.245000+00:00,Testing different resistances to approach cellphone voltage and current measurement,['2022_04_26_14_23_55_IMG_20220425_161858.jpg'],Testing different resistances to approach cellphone voltage and current measurement,47 ohm gave good figures. See math in next prototype,"5. resistors for variating current, voltage",['electrical'],generator,10-30min,physical,exploration
152,prototype,2022-04-26 14:26:02.100000+00:00,The tighter curve will be able to make better use of the momentum in the flow,['2022_04_26_14_25_23_Cup_test.mp4'],Changing the vane design to have a tighter curve on it,"This works, the reading on the scale was higher, therefore more force. Splitting the flow may allow for better momentum transfer",Using a hemisphere cup shaped vane,"['cad_mock_up', '3d_printing', 'kits']",,30-1hr,physical,refinement
153,prototype,2022-04-26 14:27:06.817000+00:00,,['2022_04_26_14_24_14_Simulink_model.PNG'],Prototyping using Simulink model ,"This Simulink model created proved to be complex and learned that in reality, the number of parts are 2:1 ratio.  In general, this model supports understanding the Circuit required.",Simulink Model,[],,1-3hr,digital,active_learning
154,prototype,2022-04-26 14:27:36.353000+00:00,A new assembly for testing water flow and wheel spin without the stepper motor,['2022_04_26_14_27_32_20220426_140904.jpg'],A new assembly for testing with water. New assembly has re-designed 3d printed impeller in a plexi housing. The impeller are connected to two bearings with a disc on each side. The discs are there as spacers cause restricted dimensions due to laser cutting.,Still a lot of friction and details that has to be addressed in the next prototype,10. Assembly of new turbine design,"['laser_cutting', 'cad_mock_up']",plexi,30-1hr,physical,active_learning
155,prototype,2022-04-26 14:27:50.807000+00:00,More momentum transfer to rig implies more force so better energy retention,['2022_04_26_14_27_48_Double_cup_test.mp4'],"Changed the cup design to have two cups, for aforementioned benefits",This was slightly better than one cup but a lot messier. Seems like the best option so far,Double cup vane/bucket,"['cad_mock_up', '3d_printing', 'kits']",,10-30min,physical,refinement
156,prototype,2022-04-26 14:29:10.286000+00:00,Trying to figure out what current we need from generator.,['2022_04_26_14_29_07_IMG_6939.HEIC'],Benchmark calculation for converting 1KJ energy to phone battery capacity,1KJ at corresponds to about 1.9% of an Iphone 11 battery capacity (3000 mAh),1. Current and voltage benchmark calculation,['hand_calc'],,10-30min,physical,active_learning
157,prototype,2022-04-26 14:29:54.520000+00:00,code into .csv format for analysis,['2022_04_26_14_29_53_code1.PNG'],code into .csv format ,"missing time dimension, otherwise good",6. current measurement code 1,['coding'],generator,10-30min,digital,refinement
158,prototype,2022-04-26 14:32:03.499000+00:00,need time dimension for getting the correct energy calculation,['2022_04_26_14_32_00_code2_with_time.PNG'],"measuring current, voltage, power and time","works great, exportable as .csv",7. current measurement code 2,['coding'],generator,<10min,digital,refinement
159,prototype,2022-04-26 14:32:12.593000+00:00,Testing out the circuit required for the design space.,['2022_04_26_14_31_58_Breadboardtest.mp4'],Breadboard Test,This prototype helps to understand the minimum requirements for the parts to make a circuit and potential challenges in maintaining the deliverable output. ,Breadboard Testing *,['electrical'],,30-1hr,physical,active_learning
160,prototype,2022-04-26 14:34:16.048000+00:00,Had to get some sort of benchmark for how our prototype is doing,['2022_04_26_14_34_13_IMG_6944.HEIC'],Useful index for how long it will take to charge an Iphone11 given the current configuration. So far only implemented on generator design.,Needed lower resistance in generator,2. Charge An Iphone Index (C.A.P.I),['hand_calc'],,<10min,physical,active_learning
161,prototype,2022-04-26 14:35:19.943000+00:00,getting good and comparable data. Visualizing that data.,['2022_04_26_14_35_18_data_test.PNG'],visualizing test data in excel,Works well. Next step is integrating under the curve to get energy measurement. Then it should be ready,8. excel .csv data visualization,['coding'],generator,10-30min,digital,communication
162,prototype,2022-04-26 14:38:37.865000+00:00,To test complete assembly,"['2022_04_26_14_36_50_Skjermbilde_2022-04-26_kl._16.31.43.png', '2022_04_26_14_36_59_Skjermbilde_2022-04-26_kl._16.31.38.png', '2022_04_26_14_49_29_Image_from_iOS.MOV']","Complete test setup to test the interfacing turbine, generator and water reservoir","Plexi glass plate to hold motor did not fit, so too much friction was created in the crooked motoraxis","Complete assembly turbine, generator and water reservoir",['other'],,10-30min,physical,active_learning
163,prototype,2022-04-26 14:40:30.619000+00:00,"Last plate did not fit, so a new plate in MDF was made and hand-drilled to fit onto design",['2022_04_26_14_40_29_Skjermbilde_2022-04-26_kl._16.20.22.png'],MDF motorbracket to hold the motor in place and centered onto the turbine rotational axis,,2. New motorplate in MDF,"['laser_cutting', 'manual_tool']",MDF,10-30min,physical,refinement
164,prototype,2022-04-26 14:44:08.694000+00:00,"Prototype was made to test our theoretical calculations within the limits of available materials. The amount, the height and the flow was measured",['2022_04_26_14_43_18_279036344_717359519287583_2476950497256212206_n.jpg'],Head tank test for actual flow vs simulated flow rates,the available tubing and valves will have to be constraints on the dimensions of the kaplan turbine. in a perfect world we would not use this tubing or valves but its what is available in the time constraints.,head tank flow,['junking'],"head tank, low fidelity",10-30min,physical,active_learning
165,prototype,2022-04-26 14:44:38.192000+00:00,"It is a ""live"" file maintained and updated as time passes. Main purpose - 3D printing the design and communication",['2022_04_26_14_44_35_Screenshot_2022-04-26_164012.png'],Refinements in the CAD model based on MATLAB calculations,"Insights on design possibilities, tolerances, and potential hurdles in physical prototyping.",CAD model ***,"['cad_mock_up', 'cad_detailed_drawing']",,3-5hr,digital,refinement
166,prototype,2022-04-26 14:44:43.416000+00:00,To test the complete assembly,"['2022_04_26_14_42_37_IMG_9152.MOV', '2022_04_26_14_42_43_Skjermbilde_2022-04-26_kl._16.42.17.png', '2022_04_26_14_42_46_Skjermbilde_2022-04-26_kl._16.42.22.png']","New complete test setup to test the interfacing turbine, generator and water reservoir","Both with and without starthelp was tried out, but none was successful as the motor-friction was too high","3. Complete assembly turbine, electronics and water reservoir test",['other'],,<10min,physical,active_learning
167,prototype,2022-04-26 14:45:48.861000+00:00,Overview over relevant tests that needs to be done to tune design,['2022_04_26_14_40_58_IMG_6945.HEIC'],,"Needs to be tested:
Generator - Resistor
Turbine assembly - Turbine diameter and shape
Reservoir system - Height vs. volume (1KJ)

Not practical to test/tune:
- Generator gearing (more friction --> more loss)
- Rervoir system hose diameter (we really only have one hose diameter available)",Whiteboard full system test DOFs,['sketching'],,<10min,physical,active_learning
168,prototype,2022-04-26 14:51:35.006000+00:00,"The script gave insights into design sensitivity. For example. which input parameters are crucial, what happens when ..... etc. This was mainly used for design discussions within the team.",['2022_04_26_14_51_34_Screenshot_2022-04-26_164611.png'],Preliminary calculations for dimensioning the Kaplan wheel ,"Kaplan wheel requires a higher discharge rate than we presumed. There is a possibility that the wheel might not rotate with the current setup. Some ""on the fly"" modification might be needed.",MATLAB calculations,['coding'],,1-3hr,digital,communication
169,prototype,2022-04-26 14:53:30.806000+00:00,Learning about what gear ratios will be suitable for the motor,['2022_04_26_14_53_26_278921273_3195388704013715_2529085738027328691_n.jpg'],testing of various different gear combinations,need to have variable distance between turbine shaft and motor as more iterations will be done on power train,Power Train Model,['kits'],Lego; Gears,10-30min,physical,active_learning
170,prototype,2022-04-26 15:01:23.590000+00:00,"Literature says this is better, looked to be this way. Also added wings to make it easier to take off/put on",['2022_04_26_15_01_21_Webster_test.mp4'],Printed off and tested the updated webster design,"Improvement, need to test different aspect ratios",Webster nozzle test (with wings),"['cad_mock_up', '3d_printing']",,30-1hr,physical,refinement
171,prototype,2022-04-26 15:10:13.032000+00:00,will enable test of different gear ratios,['2022_04_26_15_10_10_279214249_561758088586919_4916554639125748595_n.jpg'],Lego based mount for motor that maybe adjusted for different gearing (during testing),Lego may be too limited in terms of component placements,Adjustable Motor Mount,['kits'],Lego,10-30min,physical,active_learning
172,prototype,2022-04-27 07:47:49.037000+00:00,A scetch of a turbine solution that uses both the pelton principle as well as distributes pressure over several shuffles.,['2022_04_27_07_47_05_20220426_163359.jpg'],"While testing the influensed prototype, the friction and power transmission from water to rotation where not enough to start generating. At 2m height the water wheel did not start turning. Therefore a new scetch attemts to adress the issue by increasing efficiensy.",The outlet design has a crusial role on how the new the design will perform and last cad model can easily be updated,11. Day 3. New design sketch of turbine solution,['sketching'],sketch,<10min,physical,communication
173,prototype,2022-04-27 07:53:39.018000+00:00,"By double curving the blades, the water pressure will hit the centre of the system away from the area where there is a gap between the housing and blade. By transferring the forces both the power and the pressure will hopefully increase",['2022_04_27_07_53_11_Turbine_4.PNG'],A new combination of pelton turbine and pressure rotation with double curved geometry and a diameter of approximately 100 mm,,12. Double curved turbine wheel,['cad_mock_up'],CAD,10-30min,digital,refinement
174,prototype,2022-04-27 07:57:20.229000+00:00,The new design with a 200mm diameter should increase the moment of force from the water inlet. This is also the limitation of the available 3d printers in the lab,['2022_04_27_07_57_16_Turbine_5.PNG'],To increase the moment of force a new wheel design of 200mm should be tested. The new design has same geometry and properties as the influenced prototype,To reduce printing time a lot of weight has to be removed.,T200 wheel,['cad_mock_up'],CAD,10-30min,digital,refinement
175,prototype,2022-04-27 09:30:03.170000+00:00,Needed to find height above ground to get motor to spin.,"['2022_04_27_09_29_33_IMG_6969.MOV', '2022_04_27_09_29_55_IMG_6970.mov', '2022_04_27_09_31_11_IMG_20220427_111440.jpg', '2022_04_27_09_31_17_IMG_20220427_111444.jpg']",Empirically find threshold height for getting motor to spin without(!) generator. Made new test setup from second floor to ground outside.,"Current energy used was 98J (no motor spin).
Threshold height at small design is about 5m (needed start help).
High internal friction when design was wet (bearings?)

",Day 3: 5m test,['junking'],Test; reservoir;,10-30min,physical,refinement
176,prototype,2022-04-27 09:33:26.577000+00:00,The previous test gave higher friction when wet than when dry. We thought maybe it was higher friction in the bearings when they were wet. Qualitative test,['2022_04_27_09_33_24_IMG_20220427_112127.jpg'],Testing friction in dry vs wet bearing,It seemed like the bearings had a slihtly higher friction until water was removed again. Not conclusive,bearing in water,['other'],,<10min,physical,active_learning
177,prototype,2022-04-27 09:59:03.122000+00:00,Needed to test how the friction performed in water with lubrication.,"['2022_04_27_09_58_05_IMG_6969.MOV', '2022_04_27_09_58_35_IMG_6973.MOV']",Tried to lube turbine internally and tested in sink.,"Lube/oil is a good idea to reduce friction.
",Day 3: Sink test with lube,['other'],,<10min,physical,active_learning
178,prototype,2022-04-27 10:26:25.823000+00:00,"Wanted to investigate if tube had high internal friction, and if larger diameter was better.","['2022_04_27_10_26_19_IMG_6976.MOV', '2022_04_27_11_47_00_IMG_20220427_134532.jpg', '2022_04_27_11_47_11_IMG_20220427_134620.jpg']","Tested 5m test with lubed design (so lower friction than previous 5m test) but with tube instead of hose, and with ducktaped inlet manifold. Also bored larger hole for the inlet. ","Wheel didnt spin, even if internal friction was lower.
Probably lower water velocity made results worse. So next steps could be to go back to old hose, or to use smaller diameter tube. Inconclusive so far.",Day 3: 5m test with tube instead of hose,['junking'],,10-30min,physical,exploration
179,prototype,2022-04-27 11:48:48.406000+00:00,Had to test if the lubrication made any difference or if last results were mainly influenced by tube.,['2022_04_27_11_48_46_IMG_20220427_133853.jpg'],"Tube test didnt work satisfactory, so modified setup back to hose but this time with lubrication.","Learned that hose performed much better than tube, and that lubrication is necessary.",Day 3: 5m test with hose instead of tube instead of hose,['junking'],,<10min,physical,active_learning
180,prototype,2022-04-27 11:52:33.394000+00:00,New inlet that improves on the old design. Less restriction of flow. Also fits better with hose.,['2022_04_27_11_52_32_inlet1.PNG'],"CAD of loftet inlet that has the same area throughout, from circular to rectangle. ",Test with assembly next,Inlet loftet CAD 1,"['cad_detailed_drawing', 'cad_mock_up']",CAD,10-30min,digital,refinement
181,prototype,2022-04-27 11:54:19.517000+00:00,To test fit against CAD drawing that another person drew. ,"['2022_04_27_11_54_17_inlet2_asselby.PNG', '2022_04_27_12_22_40_inlet2_asselby.PNG']",Assembly with inlet to check fit against new iteration of turbine. ,"Fits well after a couple of iterations, ready for printing. ",Inlet loftet CAD 2 assemblyu,['cad_mock_up'],CAD,<10min,digital,active_learning
182,prototype,2022-04-27 12:13:32.682000+00:00,,[],,,,[],,,,
183,prototype,2022-04-27 12:18:51.317000+00:00,"To test fit against larger assembly and hose, also potentially to use in assembly. ",['2022_04_27_12_18_48_IMG_20220427_140626.jpg'],3d print of the inlet,"Fits assembly and one type of hose. Not the other. The other type is better, so a new model must be made to fit that. ",Inlet loftet 3d print,['3d_printing'],,<10min,physical,active_learning
184,prototype,2022-04-27 12:19:08.353000+00:00,"By redesigning the house, additional pressure should build up and transferred to energy before the water is released",['2022_04_27_12_19_06_T200_housing.PNG'],A new housing enabling flow over a series of blades before the outlet. The new housing also transfers water all the way to the impact point,"By first building fysical prototypes, the cad design went much faster then expected",T200 Housing,"['cad_mock_up', 'cad_detailed_drawing']",CAD,10-30min,digital,exploration
185,prototype,2022-04-27 12:21:14.538000+00:00,,[],,,,[],,,,
186,prototype,2022-04-27 12:21:47.414000+00:00,To fit the better hose type. Insight from previous tests. ,['2022_04_27_12_21_45_inlet3_new_diameter.PNG'],Inlet CAD with new hose dimension,Ready for 3d printing. ,Inlet loftet CAD 3 new hose dimension,"['cad_mock_up', 'cad_detailed_drawing']",CAD,10-30min,digital,refinement
187,prototype,2022-04-27 12:25:44.573000+00:00,,[],,,,[],,,,
188,prototype,2022-04-27 12:26:22.789000+00:00,The assembly where to controll dimentions and provide measurements for physical prototyping,"['2022_04_27_12_22_10_t2002.PNG', '2022_04_27_12_22_14_t200.PNG', '2022_04_27_12_23_59_t200_3.PNG', '2022_04_27_12_24_04_T200_Main.PNG']","The assembly of the new T200 Water tubine including stepper mount bracket, stepper and bolts",The assembly provided insight on dimentions and a visual representation that could be discussed before building a fysical prototype,T100 Cad Assembly,['cad_mock_up'],CAD,10-30min,digital,exploration
189,prototype,2022-04-27 12:27:54.580000+00:00,,[],,,,[],,,,
190,prototype,2022-04-27 12:35:35.116000+00:00,,[],,,,[],,,,
191,prototype,2022-04-27 12:37:01.649000+00:00,,[],,,,[],,,,
192,prototype,2022-04-27 12:45:29.597000+00:00,,"['2022_04_27_12_45_15_IMG_2320.HEIC', '2022_04_27_12_54_18_IMG_2320.HEIC', '2022_04_27_12_54_18_IMG_2320.HEIC', '2022_04_27_13_18_02_IMG-2320.jpeg']","Scenarios of use case having a multifunctional tank charger: use case design. 
1. 2 tanks connected with a pipe having a hydro-charger mounted in the axis. Modular design. For a case of using the solution in the house (gardening etc).
2. The same as 1st bullet point, but without the higher tank - a solution is mounted to the gutter directly.
3. Having a part for house gutters.
4. Nozzle
5. Different flow for different cross areas
6. Idea of a bypass.",,*Scenarios of use case,['sketching'],Gardening; house; charger,30-1hr,physical,exploration
193,prototype,2022-04-27 12:48:52.253000+00:00,,"['2022_04_27_12_48_45_IMG_2319.HEIC', '2022_04_27_12_59_21_IMG_2319.HEIC', '2022_04_27_12_59_21_IMG_2319.HEIC', '2022_04_27_13_14_56_IMG-2319.jpeg', '2022_04_27_13_14_56_IMG-2319.jpeg', '2022_04_27_13_14_56_IMG-2319.jpeg']","Different option for flow regulation. 
1. Different extensions
2. Butterfly valve alike
3. Bypass",,Flow regulation,['sketching'],flow; regulation; gardening; house,<10min,physical,exploration
194,prototype,2022-04-27 12:55:58.312000+00:00,"To see if it fits the hose, and to use in assembly if good. ","['2022_04_27_12_55_39_IMG_20220427_145301.jpg', '2022_04_27_12_55_56_IMG_20220427_145256.jpg']",Inlet with new hose dimension to fit hose. ,it fits very well with just friction. Seamless transition from hose to inlet. Also fits assembly. ,Inlet loftet 3dprint new hose dimension,"['cad_mock_up', 'cad_detailed_drawing']",,<10min,physical,refinement
195,prototype,2022-04-27 13:14:18.691000+00:00,The prototype was made to test the water energy from pipe.,"['2022_04_27_13_09_54_IMG_2339.HEIC', '2022_04_27_13_13_06_IMG_2405.JPG', '2022_04_27_13_21_16_IMG-2341.jpeg', '2022_04_27_13_21_32_IMG-2340.jpeg']",A zero cost hydro propeler prototyped to test the Pelton turbine.,,Hydro Propeler,['manual_tool'],Propeler; Pelton; prototype,30-1hr,physical,active_learning
196,prototype,2022-04-27 13:25:59.873000+00:00,A simple prototype was sketched before the assembly. The aim was to create plans for the initial testing of the generator.,['2022_04_27_13_25_54_202204271519211000.jpg'],"The generator is mounted onto a plate, with a simple Pelton turbine installed onto its shaft. The turbine was made of polymer spoons. Its sole purpose is to test whether the selected water flow will provide enough torque to rotate the generator.",This sketch has enabled us to assemble the initial testing prototype.,1st prototype - generator test (sketch),['sketching'],Pelton; generator; test,<10min,digital,active_learning
197,prototype,2022-04-27 13:30:23.180000+00:00,We wanted to have a direct measurement of the energy generated for validating designs and for final validation. ,['2022_04_27_13_29_58_code3_accumulated_energy.PNG'],Updated code that integrates the power with respect to time. Leads to direct readings of total energy generated. ,works very well. Double checked with hand calculations.,energy measurement code,['coding'],code,30-1hr,digital,active_learning
198,prototype,2022-04-27 13:31:06.601000+00:00,,"['2022_04_27_13_29_39_IMG-2349.jpeg', '2022_04_27_13_29_48_IMG-2351.jpeg']",Energy measurement rig mounted on a prototype plate in order to fix the motor and protect the motor.,,Mounted test rig,['manual_tool'],test; measurement; motor; prototype,10-30min,physical,exploration
199,prototype,2022-04-27 13:33:13.704000+00:00,"It was decided to 3D print the housing; hence, the 3D model had to be created.","['2022_04_27_13_33_03_Housing_-_model.SLDASM', '2022_04_27_13_33_06_Housing_frame.SLDPRT', '2022_04_27_13_33_08_Housing_cover.SLDPRT']","The proposed housing will be made using the additive manufacturing technologies. It enables simple mounting of both the generator and the Pelton turbine. The flow will be focused onto the turbine using an additional nozzle, which is not shown here.",Sealing off the motor might be problematic.,Prototype housing - CAD,['cad_detailed_drawing'],housing; CAD,1-3hr,digital,refinement
200,prototype,2022-04-27 13:33:12.806000+00:00,to check if the numbers are ballpark correct,['2022_04_27_13_32_54_IMG_20220427_153037.jpg'],Hand calculations for ballpark validation of energy collection code. ,"getting about the same numbers, with simplification, so it is correct. At least close. ",energy measurement hand calculation,['hand_calc'],,<10min,physical,active_learning
201,prototype,2022-04-27 14:04:01.047000+00:00,,"['2022_04_27_14_03_15_IMG-2357.jpeg', '2022_04_27_14_03_51_IMG-2357.jpeg']","Zero cost, reused and customized, housing for test prototype",,Propeler housing,"['manual_tool', '3d_printing']",housing; test; propeler,10-30min,physical,active_learning
202,prototype,2022-04-27 14:06:59.054000+00:00,,['2022_04_27_14_06_41_IMG-2358.jpeg'],Mounted test prototype in order to test the pipe pressure / flow.,,**Test prototype ,['manual_tool'],test; housing; prototype; propeler,30-1hr,physical,active_learning
203,prototype,2022-04-27 14:11:55.241000+00:00,The nozzle could slip in the casing which isnt ideal,['2022_04_27_14_11_51_Webster-6As-wings-notch.stl'],Added a second set of wings to allow the nozzle to sit well with zip ties,This did help but in the end zip-tying the nozzle itself wasnt the one since we need to change it out every so often.,Added second set of wings,"['cad_mock_up', '3d_printing']",,10-30min,physical,refinement
204,prototype,2022-04-27 14:22:10.245000+00:00,As the motor and pelton wheel were different sizes we had to make something to connect the two together,"['2022_04_27_14_22_00_rod_clamp_v3.stl', '2022_04_27_14_22_07_rod_clamp_v1.stl']",Connects the drive rod to the motor/generator,It was made to fit just about perfectly but was way too tight thanks to the tolerances. Will make it bigger next time,Original rod clamp,"['cad_mock_up', '3d_printing']",,30-1hr,physical,exploration
205,prototype,2022-04-27 14:24:15.007000+00:00,Need to estimate the gear ratio required to drive the stepper motor from the pelton wheel,['2022_04_27_14_24_12_turbineclacs.m'],Analysis of turbine torque requirement to drive stepper motor,The gear ratio may be quite high,Power train calculations,"['hand_calc', 'coding']",MATLAB; Analysis,30-1hr,digital,active_learning
206,prototype,2022-04-27 14:26:58.025000+00:00,Needed to make it slightly bigger in order to fit,"['2022_04_27_14_24_06_rod_clamp_v5.stl', '2022_04_27_14_26_07_IMG_0294.JPEG']",Slightly wider guage,"Was too loose and only worked when fully tightened, will try with a perfect fit and a bit of percussive encouragement.
The bit encasing the rod was too short so that the full thing wobbled, will make it longer.
Also the lego rod bit snapped so will make it a negative so that you have to insert the other drive shaft.",Rod clamp v2,"['cad_mock_up', '3d_printing']",,<10min,physical,refinement
207,prototype,2022-04-27 14:28:23.765000+00:00,Addresses the issues found in the previous 2 iterations,['2022_04_27_14_28_22_new_clamp_v2.stl'],Fixed changes from last time,"Seems to work, hope it is the one",Rod clamp v3*,"['cad_mock_up', '3d_printing']",,10-30min,physical,refinement
208,prototype,2022-04-27 14:30:47.867000+00:00,Pretty essential part of the pelton wheel,['2022_04_27_14_30_44_PXL_20220427_101015318.mp4'],Design for the wheel that will have all the vanes in it,"Needs a better way of holding the vanes in place, the pressure of the two plates was not enough",Pelton wheel design,"['cad_mock_up', 'laser_cutting']",,1-3hr,physical,exploration
209,prototype,2022-04-27 14:31:09.041000+00:00,First combination/ refinement of electronics model V3 and Pelton wheel (including gearing),"['2022_04_27_14_30_55_279230694_465757168676437_4012075922175568928_n.jpg', '2022_04_27_14_44_39_279125652_447145527175315_2709130054883418201_n.jpg', '2022_04_27_14_45_43_279230694_465757168676437_4012075922175568928_n.jpg']",First test of integrating the electronics with the pelton wheel (while driving the Pelton wheel by hand),could reduce the gearing ratio to increase speed of stepper motor,First integration of electrical and mechanical parts,"['kits', 'electrical', '3d_printing', 'laser_cutting', 'manual_tool']",Breadboard;Arduino;Lego;Gears,10-30min,physical,refinement
210,prototype,2022-04-27 14:33:15.133000+00:00,The vanes were too loose ,"['2022_04_27_14_33_09_PXL_20220427_103659599.jpg', '2022_04_27_14_33_12_PXL_20220427_105528119.MP.jpg']",Added screw holes and screws to hold the vanes in place,"Seems to be good enough, could do with more vanes but its too late for that","Pelton wheel, better holding mechanism",['laser_cutting'],,30-1hr,physical,refinement
211,prototype,2022-04-27 14:35:21.538000+00:00,Need to test which gear ratio is the best for this set up,"['2022_04_27_14_35_12_PXL_20220427_105529177.mp4', '2022_04_27_14_35_18_8744a9a7c5bbacc002552b855d09603.jpg']",Changed the gear ratio to see if it output more power,This was a bit better but almost negligable ,Hand test with new GR,['other'],,<10min,physical,refinement
212,prototype,2022-04-27 14:36:38.742000+00:00,,['2022_04_27_14_36_38_Skjermbilde_2022-04-27_kl._16.24.44.png'],3D printed double curved turbine wheel D = 200mm,,13. 3D printed double curved turbine wheel,['3d_printing'],,<10min,physical,refinement
213,prototype,2022-04-27 14:37:49.445000+00:00,,['2022_04_27_14_35_24_Image_from_iOS_(4).jpg'],To hold the rotatory system,Syncing with other prototypes when printing in different 3d machines.,Top Cap CAD,['cad_detailed_drawing'],CAD,10-30min,physical,communication
214,prototype,2022-04-27 14:38:30.201000+00:00,Testing the system in the real usecase ,['2022_04_27_14_38_28_5c550fc9b58628405490e34b770a0ce5.mp4'],Testing the machinery from the 10ish metre window,First one didnt last long as it was too wet. This was done without the electronics in place,Outside test 1*,['other'],,10-30min,physical,refinement
215,prototype,2022-04-27 14:38:55.926000+00:00,,"['2022_04_27_14_38_52_Skjermbilde_2022-04-27_kl._16.25.15.png', '2022_04_27_14_38_55_Skjermbilde_2022-04-27_kl._16.25.42.png']",Laser cut plexi glass of the T200 housing. Superglued together.,,2. T200 housing,['laser_cutting'],Plexi; Superglue,30-1hr,physical,active_learning
216,prototype,2022-04-27 14:40:26.703000+00:00,"Fixes the potential water splashback issues, that in combination with a lot of usb extenders should keep everything safe",['2022_04_27_14_40_05_PXL_20220427_141454612.jpg'],A cardboard box set up to protect the electronics,"This works for now but given a bunch of runs the cardboard would disintegrate, so plastic would be ideal if we could get something to work",Water protection for electronics,"['junking', 'card_foam_modelling']",,30-1hr,physical,refinement
217,prototype,2022-04-27 14:41:44.034000+00:00,,"['2022_04_27_14_39_43_Skjermbilde_2022-04-27_kl._16.27.01.png', '2022_04_27_14_39_50_Skjermbilde_2022-04-27_kl._16.27.07.png', '2022_04_27_14_39_55_Skjermbilde_2022-04-27_kl._16.27.18.png']","Assembly of turbine wheel, bearings, housing and 3D printed hose adapter
",,14. Assembly of whole turbine,"['manual_tool', 'manual_machining', 'other']",Assembly,10-30min,physical,active_learning
218,prototype,2022-04-27 14:42:04.757000+00:00,,['2022_04_27_14_38_42_Image_from_iOS_(5).jpg'],Housing for Turbine. ,It is a  live structure and updated as time passes. ,Turbine Housing,['manual_machining'],,<10min,physical,communication
219,prototype,2022-04-27 14:45:30.610000+00:00,Refinement of design over initial wet tested setup,['2022_04_27_14_45_29_279125652_447145527175315_2709130054883418201_n.jpg'],Returned to using zip tie method instead of previous mounting system for nozzle,Electronics should all now be safe from water spray,full integrated setup,['card_foam_modelling'],Electronics;Arduino;Gears;,10-30min,physical,refinement
220,prototype,2022-04-27 14:46:28.762000+00:00,,"['2022_04_27_14_46_08_Skjermbilde_2022-04-27_kl._16.27.33.png', '2022_04_27_14_46_16_Skjermbilde_2022-04-27_kl._16.27.24.png']",Assembly of the turbine to the motor and Arduino system,,15. Assembly turbine and generator,"['other', 'manual_tool']",Assembly,<10min,physical,active_learning
221,prototype,2022-04-27 14:48:32.404000+00:00,Refinement of Full integrated setup with properly mounted electronics box,['2022_04_27_14_48_30_279138931_666371177953506_6755953869324298632_n.jpg'],Added tape to properly fix electronics box,Electronics box is now secure,Tape mounted electronics box,['other'],Tape,<10min,physical,refinement
222,prototype,2022-04-27 14:48:49.723000+00:00,,"['2022_04_27_14_43_46_Image_from_iOS_(6).jpg', '2022_04_27_14_46_46_Image_from_iOS_(7).jpg']",Mounts for Motor,How important to have exact dimensions to fit the design.  Also on how to use the molding machine.,Motor Mounts,['moulding'],,<10min,physical,communication
223,prototype,2022-04-27 14:49:02.108000+00:00,,"['2022_04_27_14_47_10_Skjermbilde_2022-04-27_kl._16.33.57.png', '2022_04_27_14_47_17_Skjermbilde_2022-04-27_kl._16.34.06.png', '2022_04_27_14_47_22_Skjermbilde_2022-04-27_kl._16.34.25.png', '2022_04_27_14_47_30_20220427_153839.mp4']","Test day 3 of whole assembly of the T200 turbine with generator. 1,5 meter height",Test failed due to water filling up in wholes between spokes in the T200 wheel.,*16. Indoor test of whole system,['other'],Test;Failed,10-30min,physical,active_learning
224,prototype,2022-04-27 14:51:02.724000+00:00,"new USB cables were added, therefore need to ensure the Arduino could still read form the sensor and communicate with the laptop correctly ",['2022_04_27_14_51_01_279230416_725968798437247_5710185668578322980_n.jpg'],Test that the software/ Arduino can still successfully read from the power sensor,The Arduino can still read form the sensor,Software and full integrated setup test,['coding'],Arduino; Software,<10min,physical,refinement
225,prototype,2022-04-27 14:51:18.766000+00:00,,['2022_04_27_14_50_50_Skjermbilde_2022-04-27_kl._16.28.59.png'],"Outdoor test of whole system. 2L, ca. 3 meters.","Water still filled up in the spokes, but wheel turned because of higher water velocity",17. Outdoor test of whole system,['other'],Test,10-30min,physical,active_learning
226,prototype,2022-04-27 14:52:27.806000+00:00,,['2022_04_27_14_49_36_Image_from_iOS_(8).jpg'],Caps for stepper motor,,Motor Caps,['3d_printing'],3D,10-30min,physical,communication
227,prototype,2022-04-27 14:52:32.591000+00:00,,['2022_04_27_14_52_33_Skjermbilde_2022-04-27_kl._16.32.19.png'],Failed 3D print,,Failed 3D print of small turbine,['3d_printing'],,<10min,physical,exploration
228,prototype,2022-04-27 14:54:25.378000+00:00,,"['2022_04_27_14_54_17_IMG_20220427_155438.jpg', '2022_04_27_14_54_25_Skjermbilde_2022-04-27_kl._16.27.40.png']",Sketching directly onto plexi-glass to visualise water flow and solve issues,,Sketch on turbine,['sketching'],,<10min,physical,communication
229,prototype,2022-04-27 14:55:03.781000+00:00,Refinement of previous full setup version with new clamp,['2022_04_27_14_55_02_278914655_558917962220140_7348882698223801156_n.jpg'],Addition of the improved clamp to the full setup,The rod is now properly fixed,Full setup with rod clamp V3,['other'],Clamp,<10min,physical,refinement
230,prototype,2022-04-27 14:56:50.473000+00:00,,['2022_04_27_14_54_28_Image_from_iOS_(9).jpg'],Kaplan Turbine 3D print,What type of turbine is most efficient and how it could be modeled?,Kaplan Turbine *,"['3d_printing', 'cad_detailed_drawing']",CAD; 3D,10-30min,physical,communication
231,prototype,2022-04-27 14:58:37.651000+00:00,Improved jet angle to vanes,['2022_04_27_14_58_35_9F29AB62-9C23-482C-BA50-B696D729289A.jpeg'],Nozzle was pointing too far up so had to tie it down,Much better ,Fixing nozzle angle with string,['junking'],,10-30min,physical,refinement
232,prototype,2022-04-27 15:00:51.363000+00:00,,['2022_04_27_15_00_03_Image_from_iOS_(10).jpg'],Hand Mathematical Calculations,Understanding the standard requirements to make a better design,Mathematical Calculations *,['hand_calc'],maths,10-30min,physical,communication
233,prototype,2022-04-27 15:32:29.939000+00:00,Verification test of removing friction,['2022_04_27_15_00_34_IMG_6986.MOV'],Test to verify friction optimization,Friction was removed,Sink test large diameter turbine,['other'],Verification; Validation;,<10min,physical,refinement
234,prototype,2022-04-27 16:20:55.540000+00:00,"Dark horse prototype. Too many moving parts in the previous, with low accuracy (3d printing etc). Much water out on the side, not contributing to power generation). This one has fewer parts. ",['2022_04_27_16_20_54_waterwheel1.PNG'],"water wheel with walls on the outside that is on the wheel, as opposed to on the stationary part (previously). ","A couple of design iterations, then: Everything fits, lets make it!",water wheel CAD,"['cad_mock_up', 'cad_detailed_drawing']",CAD,30-1hr,digital,exploration
235,prototype,2022-04-28 06:47:57.335000+00:00,To test if it worked to laser cut the thin parts,"['2022_04_28_06_47_16_IMG_20220427_202624.jpg', '2022_04_28_06_58_52_IMG_20220427_190117.jpg']","Laser cut first iteration of water wheel ""dark horse"" prototype (different concept than we had used for the past day). (one wrong image, can't remove",very hard to laser cut 6mm acrylic like this. Next time cut an outline around it to make it easyer to remove. ,water wheel laser cut part 1,['cad_mock_up'],,1-3hr,physical,exploration
236,prototype,2022-04-28 06:57:22.460000+00:00,2 important things. Testing new fabrication method (see description) and for making the assembly part. ,['2022_04_28_06_57_17_IMG_20220427_202624.jpg'],"Laser cut prototype of the water wheel. Improved production method (cut out around it, so you can remove small parts easily without breaking it). Also it got glued together after verification",New fabrication method worked great! On to building. ,water wheel laser cut part 2,"['laser_cutting', 'manual_tool', 'other']",,1-3hr,physical,refinement
237,prototype,2022-04-28 07:09:23.939000+00:00,"Determining how much room we have, and what goes where. Design discussion. ",['2022_04_28_07_09_15_IMG_20220428_090259.jpg'],Simple sketch for determining what goes where in the CAD assembly,"The insight is where to put things in the CAD, and how much space we have. ",Water wheel assembly sketch,['sketching'],,10-30min,physical,communication
238,prototype,2022-04-28 07:12:16.799000+00:00,Explanation above. ,['2022_04_28_07_12_12_IMG_7007.HEIC'],"So our previous tests showed that water level increased when we ran the turbine. We tried to modify our prototype by cutting holes with Dremel, but ended up breaking the prototype. So we had to make new plates and do a new rebuild. ","Learned that we have a high precision design with low precision manufacturing capabilities. So we added extra clearance on radial and axial sides.
",18. Full prototype rebuild with hole for letting out water,"['cad_mock_up', 'laser_cutting', 'junking']",,1-3hr,physical,refinement
239,prototype,2022-04-28 07:13:09.704000+00:00,"To put everything together before laser cutting more parts, to see that they fit. ",['2022_04_28_07_13_06_waterwheelassembly1.PNG'],"CAD of the assembly, only the nessesary parts for laser cutting are included",Parts fit after a couple of iterations. ,Water wheel assembly CAD,['cad_mock_up'],CAD,30-1hr,digital,refinement
240,prototype,2022-04-28 07:15:39.559000+00:00,Indication test of whether new rebuild reduced friction,['2022_04_28_07_15_37_IMG_6996.MOV'],Quick test of new rebuild with more clearance. ,Yes - it reduced friction.,19. Sink test with new rebuild,['other'],,<10min,physical,active_learning
241,prototype,2022-04-28 07:16:28.565000+00:00,,['2022_04_28_07_16_17_Skjermbilde_2022-04-28_kl._09.13.46.png'],Whiteboard with bullet points to generate ideas to improve the waterwheel,,Whiteboard bullet points to improve waterwheel,['sketching'],Bullet points,<10min,physical,communication
242,prototype,2022-04-28 07:17:05.836000+00:00,To see if all the parts fit before testing. ,['2022_04_28_07_17_04_279371526_1446370532449657_8024944097518975906_n.jpg'],"***Full assembly of new concept, ready for test. ",The parts fit well after some improvisation on the bottom wooden spacer. ,***Water wheel full assembly 1,"['laser_cutting', 'manual_tool']",,1-3hr,physical,refinement
243,prototype,2022-04-28 07:17:39.042000+00:00,,['2022_04_28_07_17_09_Skjermbilde_2022-04-28_kl._09.13.53.png'],Sketched idea to increase stiffness,,Whiteboard sketch,['sketching'],,<10min,physical,communication
244,prototype,2022-04-28 07:18:32.020000+00:00,,['2022_04_28_07_17_48_Skjermbilde_2022-04-28_kl._09.14.01.png'],Sketched idea to reduce number of parts,,Sketch,['sketching'],,<10min,physical,communication
245,prototype,2022-04-28 07:19:32.594000+00:00,,['2022_04_28_07_18_44_Skjermbilde_2022-04-28_kl._09.14.06.png'],Sketch describing how to place motor,,Sketch,['sketching'],,<10min,physical,communication
246,prototype,2022-04-28 07:20:22.050000+00:00,To see how the new rebuild performed. ,['2022_04_28_07_20_09_IMG_6997_2.MOV'],New verification test of rebuild with full system. ,"1. Skipped inlet manifold and put hose directly into design. 
2. Best design so far!
3. First real numbers: 0.35J from 40J reservoir --> 0.9% efficiency (room for improvement)",20. Full system 40J verification test (2L @ 2m),['other'],,10-30min,physical,refinement
247,prototype,2022-04-28 07:20:24.074000+00:00,,['2022_04_28_07_19_41_Skjermbilde_2022-04-28_kl._09.14.12.png'],Sketch to communicate a parallell motor axis - more compact design,,Sketch,['sketching'],,<10min,physical,communication
248,prototype,2022-04-28 07:28:47.338000+00:00,Test how the water wheel design performed.,['2022_04_28_07_25_03_IMG_7003_2.MOV'],Verification test of Kim's new water wheel design. ,"Well hello there. So the water wheel design is a design not requiring high precision parts, and this was clear from the test.
1. Water wheel is much much better. Tests indicate 9.85J from 40J reservoir --> 25% efficiency (!)
2. Low precision design is easier to implement.
3. Motor was only held manually during test. Learned that motor axle misalignment caused a tremendous loss from deforming the shaft coupler. Will redesign motor holder to a floating design. ",*Dark Horse Water Wheel Performance Test,['other'],Test; reservoir;,10-30min,physical,active_learning
249,prototype,2022-04-28 08:23:42.674000+00:00,The small wings just slipped when you tried to turn it. ,['2022_04_28_08_23_40_16DEAF69-F5DC-4957-816C-F1D2C2DBB02A.jpeg'],Enlarged wings of nozzle ,"Much better but they might break, would sort for a real product",Larger flanges ,"['cad_mock_up', '3d_printing']",,<10min,physical,refinement
250,prototype,2022-04-28 08:26:54.909000+00:00,Just to see if its fits better onto our rig when it is a bit longer. See if it makes the flow better.,['2022_04_28_08_26_50_Webster-6As-wings-long_v1.stl'],Making the thing slightly longer,"Didnt add anything in particular, was able to fit (not any better) but the flow was much the same",Longer nozzle design,"['cad_mock_up', '3d_printing']",,10-30min,physical,refinement
251,prototype,2022-04-28 08:26:54.973000+00:00,Just to see if its fits better onto our rig when it is a bit longer. See if it makes the flow better.,['2022_04_28_08_26_50_Webster-6As-wings-long_v1.stl'],Making the thing slightly longer,"Didnt add anything in particular, was able to fit (not any better) but the flow was much the same",Longer nozzle design,"['cad_mock_up', '3d_printing']",,10-30min,physical,refinement
252,prototype,2022-04-28 08:57:25.391000+00:00,Both 3D turbine prints failed so team had to come up with new solutions with only four hours left.,['2022_04_28_08_57_03_Cross-flow_turbine.jpeg'],The turbine was made of polymer pipes and was rather inexpensive. Turbine blades were made by cutting the pipe in four sections and were fastened to the central shaft via bolts.,The design would be feasible if produced in tighter tolerances.,Cross-flow turbine - physical prototype,"['manual_tool', 'manual_machining']",turbine; prototype,1-3hr,physical,communication
253,prototype,2022-04-28 09:02:37.992000+00:00,It was necessary to produce the turbine to complete the prototype and carry out the testing. Prototype was simultaneously printed on two Prusa's.,['2022_04_28_09_04_00_Pelton_print_-_failed.jpeg'],Previously uploaded Pelton turbine was 3D printed.,Both prints failed so team had to come up with new solutions few hours before the deadline.,Pelton turbine 3D print - failed,['3d_printing'],Pelton; prototype; 3D print,3-5hr,physical,active_learning
254,prototype,2022-04-28 09:07:48.454000+00:00,The prototype was assembled to assess whether it is necessary to change the turbine size.,"['2022_04_28_09_09_07_WhatsApp_Image_2022-04-28_at_11.05.39.jpeg', '2022_04_28_09_09_10_WhatsApp_Image_2022-04-28_at_11.06.00.jpeg']",The crossflow turbine was placed inside a pipe housing to assess whether the prototype will be feasible. ,"It is possible that the turbine blades will deform due to water pressure and ""scrape"" the housing. It is hence necessary to include blade ribs.",Cross-flow - Plan B prototype,"['manual_tool', 'junking']",housing; turbine,10-30min,physical,active_learning
255,prototype,2022-04-28 09:12:17.939000+00:00,"Team wanted to explore whether the prototype is viable, focusing on turning the blades and generating the current.",['2022_04_28_09_10_07_VID_20220428_103958.mp4'],"The plastic cap prototype was tested to explore its viability. Pressurized air was used to turn the turbine ""blades"", and the motor generated the electric current. A total of 6 bar of air pressure was needed.",It was possible to rotate the blades and the current was generated.,Plastic cap prototype testing,"['junking', 'hand_calc', 'other']",junking; plastic caps,1-3hr,physical,communication
256,prototype,2022-04-28 09:12:31.868000+00:00,"CHecking to see whether a smaller nozzle on a full test scale still works well, but lasts longer with lower power output - bag to cover electronics","['2022_04_28_09_12_21_video-1651136542.mp4', '2022_04_28_09_12_25_video-1651136557.mp4']",Testing a smaller nozzle to increase the operation time at lower power. ,"Bag doesnt work well, hard to access the inside of the box and lets water ingress from below. The nozzle works well but we seem to be getting 200% efficiency which seems fishy.",Bag upright + Slowmo + smaller diameter nozzle full test - outside test 2(or3?),"['other', '3d_printing']",outside test;,10-30min,physical,refinement
257,prototype,2022-04-28 09:14:39.461000+00:00,"Wanted to stop the pooled water from getting the cardboard box wet, so added some stilts.","['2022_04_28_09_14_30_278979486_709345390331544_7848212949867577434_n.jpg', '2022_04_28_09_14_35_279040632_1344629516017496_2331674950876858572_n.jpg']",Raised the box to prevent water ingress from pooled water,"Looks like it works well, preventing pooling water from soaking electronics",Raised box to avoid water ingress,['junking'],water;,10-30min,physical,refinement
258,prototype,2022-04-28 09:16:20.980000+00:00,"Covered the box in tape to prevent splash damage.
",['2022_04_28_09_16_17_279090735_733067404792321_1557272015220170420_n.jpg'],Covered the box in tape to prevent splashed water making the box soggy.,"Works well, box is much more resistant to splashed water.",Splashproof box,['junking'],water;,10-30min,physical,refinement
259,prototype,2022-04-28 09:19:17.074000+00:00,Drilled holes in the mount to put a ziptie through the middle.,['2022_04_28_09_19_12_279155721_393679689283883_8353716361952470838_n.jpg'],"The zipties over the mount didn't work, so we needed a new method of zip tieing the nozzle to the mount.","Holds the nozzle much better, a straight over the top ziptie wibbles much less.",New Nozzle mount,['manual_tool'],nozzle mount; ,<10min,physical,refinement
260,prototype,2022-04-28 09:23:05.097000+00:00,,['2022_04_28_09_22_23_Screenshot_2022-04-28_at_11.22.05.png'],Inexpensive prototype made of plastic roll and plastic bottle caps.,,Plastic cap prototype,"['junking', 'manual_tool']",trashing; plastic bottle caps,1-3hr,physical,refinement
261,prototype,2022-04-28 09:31:01.917000+00:00,A new complete low friction system,"['2022_04_28_09_30_45_T25.PNG', '2022_04_28_09_30_50_T25_2.PNG', '2022_04_28_09_30_58_T25.pdf']",A itteration of the low fricition water wheel with included fastening bort on top and hose connection point in addition to base plate,Works like a charm,CAD Water wheel Final Final Final etc,"['cad_detailed_drawing', 'cad_mock_up']",CAD,30-1hr,digital,refinement
262,prototype,2022-04-28 09:34:18.139000+00:00,New parts for automatic handling and performance increase of friction,"['2022_04_28_09_33_58_20220428_113120.jpg', '2022_04_28_09_34_05_20220428_113123.jpg', '2022_04_28_09_34_11_20220428_113128.jpg', '2022_04_28_09_34_16_20220428_113133.jpg']",A new prototype for live performance evaluation made from plexi in the laser cutter,Best prototype so faar,*Fysical prototype Water wheel Final Final FInal etc,['laser_cutting'],plexi,10-30min,physical,refinement
263,prototype,2022-04-28 09:33:35.341000+00:00,It was necessary to create the test rig in order to carry out the necessary measurements.,['2022_04_28_09_34_26_WhatsApp_Video_2022-04-28_at_11.33.59.mp4'],Test rig was created to enable the testing of the prototype. It was 6 m high and had a volume of 15 L. The pipe diameter was 32 mm with while the nozzle diameter was 6 mm.,Task of finding the 6 m tall window was harder that initially thought. ,Test rig - 6 m,"['junking', 'manual_machining', 'other']",test rig,30-1hr,physical,active_learning
264,prototype,2022-04-28 10:05:24.948000+00:00,The prototype was built to test the water flow and pressure in order to propel the prototype. Testing was made with the water pressure of 3 bar (equivalent of 5% of 1kJ energy).,"['2022_04_28_10_04_19_IMG-2372.mov', '2022_04_28_10_04_58_IMG-2372_(1).mov', '2022_04_28_10_40_35_IMG-2372.mov', '2022_04_28_10_40_45_IMG-2372_(1).mov']",Plastic Bottle Caps prototype testing with the water pressure of 3 bar.  ,,*Plastic Bottle Caps Prototype,['junking'],junking; testing; plastic; bottle; caps,3-5hr,physical,active_learning
265,prototype,2022-04-28 10:08:13.196000+00:00,Refinement of previous electronics model V3,['2022_04_28_10_08_10_278572062_968564590518469_8174253514274672435_n.jpg'],New version of electronics with different capacitor configuration to better smooth power output,Power out of stepper motor is now better smoothed and readings from power sensor are correct,Electronics V4*,['electrical'],Filtering,10-30min,physical,refinement
266,prototype,2022-04-28 10:10:47.798000+00:00,Need to demonstrate the final concept,"['2022_04_28_10_10_35_Screenshot_2022-04-28_110755.png', '2022_04_28_10_10_42_Screenshot_2022-04-28_110832.png']",Final CAD model,Looks aight.,Final Product CAD,['cad_mock_up'],CAD;,30-1hr,digital,communication
267,prototype,2022-04-28 10:18:46.616000+00:00,,"['2022_04_28_10_16_01_IMG-2387.jpeg', '2022_04_28_10_16_13_IMG-2388.jpeg', '2022_04_28_10_16_24_IMG-2389.jpeg']","The Pelton turbine inspired the propeller. After the failed 3D printed Pelton propellers two days in a row, a decision was to create the one for testing using junk.
It is made from a junk wheel (of material from 3D printer) and bottles plastic caps, and other junk material (such a junk usb case).",,Plastic bottle caps propeller,['junking'],junking; pelton; junking,1-3hr,physical,active_learning
268,prototype,2022-04-28 10:24:05.566000+00:00,,['2022_04_28_10_24_04_Skjermbilde_2022-04-28_kl._12.23.01.png'],Sketch of dimensions for CAD model,,Dimensionsketch,['sketching'],,<10min,physical,active_learning
269,prototype,2022-04-28 10:26:19.120000+00:00,,['2022_04_28_10_24_59_Skjermbilde_2022-04-28_kl._10.49.37.png'],CAD of box to hold the waterwheel in place,,2. Box CAD,['cad_mock_up'],,10-30min,physical,active_learning
270,prototype,2022-04-28 10:27:38.623000+00:00,,['2022_04_28_10_26_34_Skjermbilde_2022-04-28_kl._10.53.51.png'],Revised CAD of box to hold the waterwheel,,3. Revised box CAD,['cad_mock_up'],,10-30min,digital,active_learning
271,prototype,2022-04-28 10:29:44.671000+00:00,,['2022_04_28_10_27_48_Skjermbilde_2022-04-28_kl._12.26.46.png'],Assembly CAD of whole waterwheel in compact box with motor and electronics box,,14. Assembly of waterwheel in compact box,['cad_mock_up'],,30-1hr,digital,active_learning
272,prototype,2022-04-28 10:36:45.089000+00:00,,['2022_04_28_10_36_28_IMG_20220428_121151.jpg'],"We started 3D printing based on this model https://www.thingiverse.com/thing:802284. Unfortunately, 3D printing did not finish successfully due to technical problems with 3D printer.",,3D printing of mini water tap turbine - failed,['3d_printing'],3D printing; water tub,1-3hr,physical,refinement
273,prototype,2022-04-28 10:40:04.618000+00:00,,"['2022_04_28_10_38_39_measuring1.xlsx', '2022_04_28_10_38_46_measure.ino', '2022_04_28_10_38_54_IDEA_Challenge_Result_sheet.docx', '2022_04_28_10_40_02_WhatsApp_Image_2022-04-28_at_12.26.51_PM.jpeg']","Energy measurement calculation is made to calculate equivalent potential energy from the testing.
At the end efficiency of our prototype is 5%.",,Plastic caps prototype energy calculation,['hand_calc'],calculation; testing; energy; measurement,1-3hr,physical,active_learning
274,prototype,2022-04-28 10:44:28.241000+00:00,,[],,,,[],,,,
275,prototype,2022-04-28 10:46:45.888000+00:00,,[],,,,[],,,,
276,prototype,2022-04-28 10:49:09.207000+00:00,Showing how the system works using the test setup without water collection unit,"['2022_04_28_10_48_47_20220428_115110.mp4', '2022_04_28_10_49_00_20220428_115723.mp4']",Videos showing the test setup and final testing,Its brilliant,Final presentation,['other'],Video,<10min,physical,communication
277,prototype,2022-04-28 10:50:17.288000+00:00,,[],,,,[],,,,
278,prototype,2022-04-28 10:50:45.661000+00:00,,"['2022_04_28_10_50_21_WhatsApp_Image_2022-04-28_at_12.22.27_PM.jpeg', '2022_04_28_10_50_43_IDEA_Challenge_Result_sheet.docx']","In the absence of a mass measuring device, we used with an improvised lever. Total mass of the prototype is 600 g.",,Prototype mass measurement,"['junking', 'hand_calc']",measurement; mass; testing,10-30min,physical,active_learning
279,prototype,2022-04-28 10:52:59.566000+00:00,,[],,,,[],,,,
280,prototype,2022-04-28 10:55:45.332000+00:00,,[],,,,[],,,,
281,prototype,2022-04-28 11:02:19.657000+00:00,Gotta show off how brilliant our prototype is. ,"['2022_04_28_11_01_50_video-1651143553.mp4', '2022_04_28_11_01_56_video-1651136557.mp4', '2022_04_28_11_02_00_video-1651136542.mp4', '2022_04_28_11_11_45_279172289_1860810547448060_8278808606991340370_n.jpg', '2022_04_28_11_11_50_279113326_516742493508929_5851652840692374590_n.jpg']",All done mate. Not too shabby. ,It worked! ,Final Prototype*,['manual_tool'],final;,10-30min,physical,communication
282,prototype,2022-04-28 11:02:42.884000+00:00,showing packing out,['2022_04_28_11_02_39_VID_20220428_130057.mp4'],Packing out setup,Looks good,packing out,['other'],,<10min,physical,communication
283,prototype,2022-04-28 11:03:23.703000+00:00,Communicate how long it takes to pack the system,['2022_04_28_11_03_19_20220428_115635.mp4'],packing test,very short packing time (30secs),packing test,['other'],Packing,<10min,physical,communication
284,prototype,2022-04-28 11:25:18.652000+00:00,Display the connections and electrical components,['2022_04_28_11_25_13_circuit.png'],Circuit diagram showing the electrical setup,how the components are connected,Electronics cicuit,['technical_drawing'],Circuit Diagram,<10min,digital,communication
285,prototype,2022-04-28 11:29:54.677000+00:00,Proof of concept,['2022_04_28_11_29_52_Video.mp4'],,,Final Prototype,['other'],,10+hr,physical,active_learning