Homemade Telecine

[Stan Jelavic]

Glad that there is some interest. If the timing disk approach works out then my main problem after that would be 3D printing. Still do not have the 3D printer and getting the stuff done outside gets pretty expensive.

[Stuart Reid]

Looks interesting, I still have all the steppers from my previous aborted attempt to build a scanner, maybe I'll give this a go.

[Stan Jelavic]

Decided to give this idea one more chance. Will use fine detail plastic this time to get more precise timing. If it works then this could be used for a cheap but excellent quality homemade telecine. The film driving mechanism can be replaced by pinch rollers allowing for films with lots of missing perforations. Also it could be designed for any size film.
Another idea in case this does not work is to use the RPI project but just for frame timing.
https://www.youtube.com/watch?v=6vQSJZa7OGE&t=21s

The idea is to have two gates in series. The first gate has a RPI with the cheap RPI camera used just for timing of the stepper. Can have a cheap LED setup. The second gate is image capture gate. The stepper timing can be adjusted to compensate for the separation between the two gates. This is a bit more expensive but not that bad since the RPIs and RPI cameras are really low cost.

[Stan Jelavic]

https://photos.app.goo.gl/dHvhDfJV4ePiuGAAA

[Stan Jelavic]

Here is my first POC for a full custom telecine with the DSLR camera and my own transport. Used a new stepper with a timing wheel.
https://photos.app.goo.gl/yeB55FWBhQV4MFjP7
https://photos.app.goo.gl/ZgiGqW5B7sosLkNd8
https://photos.app.goo.gl/U76yLMkoGeHNmX71A
https://photos.app.goo.gl/QgWYhBeJPKwQQRUg9

The resulting video has a wobble, slowly drifting up and down.
https://photos.app.goo.gl/xeWD1PNgEoG9jzEe8

Believe that cause is the timing wheel tolerances. The notches have to be spaces very accurately because even a tiny variation becomes noticable.
Got the part done at Shapeways. The material used was Versatile Plastics which may not be the best choice. Perhaps Kamel, David or Bruce may have some suggestions here since I still do not have too much experience with 3D printing.