Hello, I have to design a turntable, that holds 3 PCBs, and stops at 120 degrees, for a piston to test the PCBs.
My problem is, I am using a stepper motor and a photosensor to control the rotation of the turntable in 120 degrees increments, but the inertie makes it unaccurate, and I cannot think of a way to turn the table precisely 120 degrees at a time ( especially at high speeds) . Any thoughts?
Thanks a lot!