Quote Originally Posted by Fr. Mark View Post
My local library has a 3D printer, I had a similar idea and also wanted to think about making lens boards with built in, custom flanges for odd lenses.
If you don't already have a 3d CAD program, Fusion 360 works quite well and is free for hobbyists.

Step format files work much better than Stl files when you want to modify the model to fit your lens.

I wouldn't recommend using PLA as the temperature it warps at is fairly low, around 104F.