Stepper Motor system project

Discussion in 'The Projects Forum' started by wilson12, Aug 13, 2012.

  1. wilson12

    Thread Starter New Member

    Aug 13, 2012

    Im doing research for a project that would use stepper motors. After doing some research on the web I'm not sure if the idea is even possible given the accuracy needed.

    I wanted to get some opinions on the amount of error i would expect.

    The design would have two stepper motors rotating simultaneously in opposite directions at 5 rpm for 1 rev, then one motor would step in one direction then they would rotate together again. The step size has to be around .01° so it would have to be microstepping at the 51,200 steps per rev level. I am aware of the typical ±5% error in stepper motors. Would an absolute rotary encoder help at this low speed? The holding torque would be around 5 in-oz.
  2. Kermit2

    AAC Fanatic!

    Feb 5, 2010