Hi, This is my first post.
I am looking for simple plans, or suggestions for building a cnc rotary engraver.
I would like to engrave calibration markings, text etc on the circumference of turned aluminium.
The current plan is to mount a 3 jaw chuck onto a high torque stepper motor. This is where I would mount the workpiece. A stepper motor on top to control cut height.
I cant think how to control movement towards/away from the chuck? So please offer some suggestions, or a whole different approach.
I have short term access to lathes/mills etc for fabricating parts, and can write the software/control the electronics.
Thanks
G