This is an impressive project. I wonder about the longevity of the 3d-printed mechanism. Anyway, some years ago I went to a Lumière brothers exhibition. At the

This is an impressive project. I wonder about the longevity of the 3d-printed mechanism. Anyway, some years ago I went to a Lumière brothers exhibition. At the end of the exhibition there was an original "Cinematograph" in function. I was astonished by the simplicity of the machine: It was just a little wooden box with a film magazine, a lens and a hand crank.[1][2] And it doubled as a projector, just by placing a lamp behind it[3] (an oil lamp, and film was highly flammable back then, most early motion pictures were lost due to fire). And that was it, it required neither electricity, nor any special or complex operation. I couldn't stop thinking how this little device was the start of one of the most important and influential industries of the 20th century. I guess most of the innovation was in the development of the film itself. [1]: https://upload.wikimedia.org/wikipedia/commons/0/0a/Institut_Lumi%C3%A8re_-_CINEMATOGRAPHE_Camera.jpg https://upload.wikimedia.org/wikipedia/commons/0/0a/Institut... [2]: https://img.theculturetrip.com/wp-content/uploads/2018/02/1024px-cinematograf-project3.jpg https://img.theculturetrip.com/wp-content/uploads/2018/02/10... [3]: https://upload.wikimedia.org/wikipedia/commons/7/73/CinematographeProjection.png https://upload.wikimedia.org/wikipedia/commons/7/73/Cinemato...