The setup for a rotary is relatively simple. There is a slight difference between a chuck and a wheel (roller) type rotary.
You need to determine steps/rotation. This is found on the motor driver.
Check the switch settings on the motor driver.
Find the ‘chart’ that tells you how it’s configured…
Determine the steps/rotation… mine is 2000 steps/rotation.
For a wheel rotary, there is also a ratio between how many times the motor rotates to a single rotation of the ‘driving’ wheel.
In my case (PiBurn) the ratio is 2.5, so 2000 x 2.5 = 5,000. That’s the steps/rotation for the rotary setup.
The only thing needed now is the driving wheel diameter, which is 62mm.
Since the driving wheel moves the object the same amount as the Y axes would, the setup is done.
With a chuck type you have enter the diameter of the object every time it changes so the software can compute the ‘surface speed’ of the object.
Make sense?