Re: [CAD_CAM_EDM_DRO] Z axis stepper motor getting lazy....

Hello Chris,

The great thing about having identical motors, connectors, drivers, etc.
for the three axes is that you can swap things around to help isolate
the problem.

Try swapping the Z motor with the X or Y motor. That will tell you if
the problem is with the motor/cable/connector assembly or not.

It might be easier to swap drivers. Maybe do this first to rule out the
Z driver/cable/connector assembly as faulty.

Tom Hubin
thubin@...

***************************

lcdpublishing wrote:

>
> My Z axis stepper appears to have gotten lazy for some reason. This
> stepper is an older slo-syn, 160 Oz-In stepper and is one of three
> on the same machine. The X and Y appear to be fine, but the Z axis
> has lost most of it's thrust power.
>
> As a comparison, the X & Y axis can push about 80 pounds of force
> against a scale before stalling. The Z axis can only push about 30
> pounds of force then stalls.
>
> I did disconnect the stepper mechanically to see if there is any
> binding etc. and the mechanical motion is free and smooth, the ball
> screw / nut rotates nicely etc. so it appears to be electrical.
>
> Anyone have suggestions?
>
> Could it simple be that the stepper is old and ready for the trash
> can?
>
> TIA
>
> Chris
>
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