Can I change the distance the axis move per motor turn on a homemade CNC machine? Answered
Currently, I really want to make my own CNC plotter. I want to try a different approach so instead of using pulleys or threaded slider to move the axis, I'm planning to use 3D printed rack and pinion to move the platform. I will limit the movement by using drawer slides.
However, the thing that bothers me the most is that can I calibrate the movement of the stepper motor to move exactly a distance I want? I mean if the gear's perimeter is 2cm, then 1 turn on the motor will make the axis move 2cm, definitely different than using pulleys. Also, can I convert PCB prints from eagle to Gcode to control the plotter? (my goal is to make a plotter that can make PCB)
I'm sorry for the lack of picture. I want to make sure that my project is possible before I start doing it.
P.S.: Is this a good idea? Or is it much better to mod my 3D printer into a plotter? I'm planning to buy a Monoprice mini printer fyi.