Some more info for those who want to do this, this is how i did it. I designed the rollers you see to use with skateboard bearings. That is welded to a scrap piece to keep everything square. I unplug the x axis and use that for the rotary. The stepper motor is geared as others have said so the rotation is off. The way i fixed this is when importing the bend tech wrappers to fusion to get my desired angle, I scale the x axis off the motor rotation to get the desired angle. Its not pretty, its not perfect, but it works for what i need. Sounds like several of you guys could improve on this design.
