Hello arduino community,
I am trying to create a haptic feedback device with a bldc motor. On the motor is a thread which winds up a string by the rotary motion of the motor. By pulling the string I want to simulate constant forces. Unfortunately, I have not yet got a perfect constant force while pulling the string because I feel a jerk (caused by the poles?) every full revolution. Do you guys have any idea how I could manage to drive the motor with a constant force against its direction of rotation? Is this possible with a BLDC motor?
Motor: iPower Motor GM3506
Board: Arduino Pro based BLDC Controller (Arduino Pro - based Brushless motor controller driver board (FOC BLDC servo). | eBay)
Thank you for your help:)