Quote Originally Posted by Desertboy View Post
I want to move a camera, a really small frame camera from Alixpress these are phone camera's adapted to work via USB

Could I use a 1204 ballscrew and a single Hiwin style rail to do this?

Has anyone made a single rail CNC before?

I get for almost all applications they would be useless, except this one

I just want a CNC motor controlled camera slide on the cheap that I will program myself in Python

Technically it's a 2 axis machine I'm building as I have another Nema on rotation everything is positional tracking

I would have gone closed loop but that's beyond my python skills, home switches will have to do.
Use a single supported round rail with two bearing units joined with a plate to form a carriage, a ball race on one side of the carriage unit can run on the support extrusion, a sprung ball race on the other side eliminates slack without jamming, the support extrusion is structural on its own and can be used as the base to mount the rest of your hardware.