CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] he's nearing completion! EMC and 4th axis

on 2001-10-17 04:56:03 UTC
Hey Doc

I have noticed the same quirk, in that I could get a higher rate
in one direction than the other. I believe that was when I was
using freqmod. Since I have installed the latest RPM I have
switched back to steppermod (since the lockup problem has
been fixed). Max velocity has gone up since switching to
steppermod. I can do at least 350 IPM rapids using an AMD 450
and Gecko G340's. I could probably do faster than that but
have not tried.

Bill


>
> I am still getting the "following error" at very high step rates

> above ~ 8 revs per second at 400 steps per rev) I originally thought
> it was due to simply being at the max digital output of the port but
> I doubt that now because I can get 10 revs/sec if the axis is going
> in the negative without problem but in the positive direction it will
> error out at ~8 steps/sec.
>
> Thanks again
> Doc Holliday
>
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Discussion Thread

whollid1@m... 2001-10-16 19:18:56 UTC he's nearing completion! EMC and 4th axis Tim Goldstein 2001-10-16 21:48:11 UTC RE: [CAD_CAM_EDM_DRO] he's nearing completion! EMC and 4th axis William Scalione 2001-10-17 04:56:03 UTC Re: [CAD_CAM_EDM_DRO] he's nearing completion! EMC and 4th axis