Files for the CERN 3D-printed Laserlab

These files contain the design for an educational open-source 3D-printable Laserlab, which allows for hands-on experimentation in the realms of Special Relativity as well as Quantum Physics. Technically, the Laserlab consists of 3D-printed optical mounts that are complemented by non-printable components such as screws, magnets, or mirrors. Once assembled, they serve as building bricks for various experimental setups.
Currently, three major experimental activities are proposed:

1. Special Relativity: Set up a Michelson-Interferometer and understand the 'most famous failed experiment': The Michelson-Morley experiment demonstrates the invariance of the speed of light, which is at the core of Special Relativity.
2. General Relativity: It's only very recently that gravitational waves have been observed by gravitational wave detectors such as LIGO or Virgo. In essence, gravitational wave detectors are Michelson Interferometers, which have been enhanced to increase their sensitivity significantly. Gravitational waves passing through these detectors will result in changing optical path lengths in the interferometer's cavities and, hence, shifting interference patterns. The 3D-printed Laserlab features a piezo-driven mirror that can be moved in the order of some 100 nanometers (ten-thousandth of a millimeter), which will result in a visible alteration of the interference pattern. Although the model is very simplified, it still can promote a basic understanding of how gravitational wave detectors work.
3. Quantum Physics: The Quantum World often seems strange from a common-sense point of view. One of the stranger features is what happens during measurement and how the measurement itself affects what is being measured. A well-known educational model experiment to explore the subtleties of the quantum physical measurement process is the so-called "Quantum Eraser." The 3D-printable Laserlab provides the opportunity to reproduce this experiment.