Hi Everyone. I am new here so if this topic starts in the wrong section, I request the moderators to move it to the proper section. I am making a medium sized CNC router. I am having a weird problem with one of my stepper motors. It was not there a few days ago and Google search could not give me any solution. I tried different drivers but the same problem persists. Main Specifications:- Motor - Nema 17 Motor (https://www.oyostepper.com/category-6-b0-Nema-17-Stepper-Motor.html) Driver - DRV8825 Power Supply - 12V (ATX PSU) Controller - Arduino+GRBL0.9j Microstepping - Full Step. (I am using a lead screw and I don't need microstepping right now). The motor was also working fine a few days ago. Now, when moving and accelerating, the motor stops due to vibrations. I can rotate the shaft so it is not holding phase but it is not spinning either. At the end of the motion, when it is expected to slow down, it works fine. Another identical motor works fine with the same driver and control, so I doubt there is something wrong with the motor. I opened the back cover but can't see any visual damage or burnt copper coils.

Hi all. I'm having a strange issue with the two main braided sleeve wire groups interfering with J1 motion. They sometimes get pinched between the J1 motor and the J1/J2 turret and arm assembly. The J4+5+6 sleeve is the main culprit. The interference happens in both directions but is problematic in the J1 + direction as it prevents the joint from calibrating. I have checked the length of both sleeve lengths and they are correct. I thought shortening the J4+5+6 sleeve would help but It can't be any shorter as it is currently fully extended when the arm is outstretched in the J2 + direction. I haven't seen anyone else with this problem so I think I've done something wrong somewhere. Thanks, Alastair

When i move my robot AR4 in x/y/z axis it gives that the robot position is out of reach why?