Re: rough motor

Hi,

What you are describing sounds to me like a motor drive that has one
phase burned out. The motor moves 2 full steps, then jumps back at
very low speed. You may have to replace the transistors on the bad
phase.

Mariss

--- In CAD_CAM_EDM_DRO@y..., "keongsan" <keongsan@y...> wrote:
> Hi all,
>
> What could be the cause of motors which vibrates/move in a manner.
> The motor was moving smoothly 2 weeks ago with the camtronics board
> and desknc for dos? Now when I try it out again, the motor (on the
> bench) seem to just vibrate roughly without appparently moving
> anywhere, irrespective of feed rate. What should I look out for?
>
> Thanks in advance
>
> keongsan