RE: [CAD_CAM_EDM_DRO] Re: Geckodrive

Never mind the patent stuff I just realized what you're talking about.

-----Original Message-----
From: CAD_CAM_EDM_DRO@yahoogroups.com [mailto:CAD_CAM_EDM_DRO@yahoogroups.com]
On Behalf Of Jack Hudler
Sent: Saturday, April 29, 2006 6:09 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: RE: [CAD_CAM_EDM_DRO] Re: Geckodrive

OK I'll accept 1 and 3. I never denied what you were seeing on the bench.
If you are reliably able to detect the lead/lag feedback from the stepper and
compensate for it then you have something here. I would encourage you search the
patent database for two reasons; not infringing and gather prior art for your
patent submission.

Does this system work regardless of motor inductance?

As for 2 I've seen this myself however; I only use high resolution microsteppers
50000+ spr; perhaps this a side effect of the installation with 25000 quadrature
encoders. It's very chaotic on an oscope.