CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO]

Posted by Jon Elson
on 2000-12-07 11:27:22 UTC
Art Fenerty wrote:

> Hi All:
>
> I have a question for the CNC techies out there. I was asked to repair a local Gidding and lewis vertical mill. It
> has a problem with the dynapath controller. When you jog
> the x or z axis (say by .001 or so) the motors start to creep in the proper direction, but won't stop. If you then jog in the opposite direction, they change direction but again don't stop. The larger the jhog step, the faster the servo's but when they get too fast it triggers a servo fault on that axis.
> This unit is about 25 feet tall and 20 feet wide. It was just re-installed after being bought at an auction. Does this
> sound like the servo feedback is not hooked up? Any info
> would be highly appreciated.

Yes. With the machine in estop, you should be able to manually move the axes
(might take a pipe wrench, or there may be manual controls if hydraulic drive)
and the readout should change, just like a DRO.

Jon

Discussion Thread

Jon Elson 2000-12-07 11:27:22 UTC Re: [CAD_CAM_EDM_DRO]