RE: [CAD_CAM_EDM_DRO] calibrating cnc systems

It varies by the software, but they all have a method to enter the
distance per step or distance per encoder count. To determine the proper
value you just calculate it based upon you motor step increment,
reduction ratio, and screw pitch. For instance a 200 step per rev
stepper run in half step will have 400 steps per revolution. Use a 2:1
belt drive and a 5 tpi screw and you now have 10 motor turns per inch of
motion. That works out to 2000 steps per inch. Divide 1" / 2000 steps
and you get an increment of 0.0005" per step.

Tim
[Denver, CO]

> -----Original Message-----
>
>
> how in the world do you calibrate software so that it knows
> to turn a stepper motor or servo "X" amount of times to move
> an exact distance?
>
> Scott
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/