Re: Gecko Faults

Motors have 250 cpr encoders. Machine runs very smooth, turcite ways
and such, smoother than my mini mill was. I don't have motor cables
and encoder cables in the same tube, they are just temporarily routed
to machine. They are shielded cables. I don't have a ground between
machine and control. I can get them to run if i move them at like
1ipm without faulting so the motors leads are correct. Motor run
fine when the aren't hooked up to mill.

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Bloy2004" <jmnotions@c...>
wrote:

>
> to really help you out one would need more information about your
> setup. The drive train ratio, the CPR of the encoders, friction
> factors, etc. Given a full list of your system may enable someone
> to locate where or what is causing your drives to fault.
> Since you said "fault almost immediately", sometimes a simple
> reversal of motor connections will work, but that is just

conjecture

> at this point.
>
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "kadeshan" <kader@v...>
> wrote:
> >
> > Here is a little background, just got an exact jr bare frame, and
> was
> > going to add my own motors/controls. Here is the mill
> > http://www.ameritechcnc.com/exact%20jr%20series.htm I asked them
> > what servos they use, and they said 16 ft lbs cleveland servos.
> > Direct drive. I got some off of ebay. I bought these motors
> > thinking they would be sufficient
> > http://cgi.ebay.com/ws/eBayISAPI.dll?
> > ViewItem&category=42895&item=3849879999&rd=1 . I got everything
> > hooked up, I have the accel/velocity turned way down. They fault
> > almost immediately. Is there something I am doing wrong, or

these

> > motors just not up the the job at hand? Thanks