A few more idea's. How are the velocity and position encoders mounted. a bad mount , especially on the velocity encoder will transfer vibrations. also I agree with jkh, about Machine vibration. Were you able to tram the new motor to the Brake pulley. Think of it as 2 circles, one inside the other, if they are not perfectly even around the whole circumference, vibration will occur. Lastly we always used a nylon isolation between the Motor pulley and the Brake pulley on a MOD.
Last edited by john jay; 05/25/15 02:54 PM.
