CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested)

Posted by Mike Pogue
on 2006-08-31 09:45:30 UTC
Dennis Schmitz wrote:
> Not really. Since CAD models are built in a cartesian coordinate system,
> somewhere along the way you need to translate into a motor space. Whenever
> you translate co-ordinate systems, you get quantization error at the encoder
> (or step) resolution.

In the cartesian axis case, I don't think quantization error is a given,
because the step resolution can match the coordinate system resolution.
In my case, for example, steppers are 200 steps/rev, and leadscrews
are 10TPI. That gives a quantization of 0.0005".

So, as long as I specify coordinates in 0.001" increments (which is what
I normally do), there's an exact representation in motor coordinates
(and no quantization error).

Mike

Discussion Thread

Dennis Schmitz 2006-08-27 13:21:14 UTC Open (i think) design for a parallel robot (reprap may be interested) Sebastien Bailard 2006-08-27 14:07:57 UTC Re: [CAD_CAM_EDM_DRO] Open (i think) design for a parallel robot (reprap may be interested) Chuck Merja 2006-08-28 07:55:41 UTC RE: [CAD_CAM_EDM_DRO] Open (i think) design for a parallel robot (reprap may be interested) Graham Stabler 2006-08-28 09:43:25 UTC Re: Open (i think) design for a parallel robot (reprap may be interested) R Rogers 2006-08-28 10:36:35 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Dennis Schmitz 2006-08-28 11:15:06 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Graham Stabler 2006-08-28 12:25:47 UTC Re: Open (i think) design for a parallel robot (reprap may be interested) R Rogers 2006-08-28 12:44:54 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Dennis Schmitz 2006-08-28 18:51:14 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Dennis Schmitz 2006-08-30 11:40:07 UTC Re: Open (i think) design for a parallel robot (reprap may be interested) Mike Pogue 2006-08-30 21:03:48 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Graham Stabler 2006-08-31 04:42:23 UTC Re: Open (i think) design for a parallel robot (reprap may be interested) Dennis Schmitz 2006-08-31 06:47:02 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Dennis Schmitz 2006-08-31 06:55:53 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Graham Stabler 2006-08-31 08:37:09 UTC Re: Open (i think) design for a parallel robot (reprap may be interested) Alan Marconett 2006-08-31 09:05:13 UTC RE: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Mike Pogue 2006-08-31 09:30:32 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Dennis Schmitz 2006-08-31 09:40:10 UTC Re: Open (i think) design for a parallel robot (reprap may be interested) Mike Pogue 2006-08-31 09:45:30 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Dennis Schmitz 2006-08-31 10:24:40 UTC Re: Open (i think) design for a parallel robot (reprap may be interested) Ron Yost 2006-08-31 21:29:22 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Dennis Schmitz 2006-08-31 22:16:58 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Tony Smith 2006-08-31 22:28:00 UTC RE: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Sebastien Bailard 2006-08-31 23:00:47 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Ron Yost 2006-09-01 09:44:32 UTC RE: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Jon Elson 2006-09-01 10:28:07 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Carl Mikkelsen 2006-09-01 11:59:38 UTC RE: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Mike Pogue 2006-09-01 13:05:56 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Carl Mikkelsen 2006-09-01 14:52:06 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Carl Mikkelsen 2006-09-01 19:40:46 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Tony Smith 2006-09-01 21:24:45 UTC RE: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Jon Elson 2006-09-02 08:37:05 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Graham Stabler 2006-09-02 10:10:31 UTC Re: Open (i think) design for a parallel robot (reprap may be interested) Graham Stabler 2006-09-02 10:12:54 UTC Re: Open (i think) design for a parallel robot (reprap may be interested) Graham Stabler 2006-09-02 12:50:15 UTC Re: Open (i think) design for a parallel robot (reprap may be interested) Mike Pogue 2006-09-02 12:51:38 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Graham Stabler 2006-09-02 12:54:09 UTC Re: Open (i think) design for a parallel robot (reprap may be interested) Graham Stabler 2006-09-02 12:57:05 UTC Re: Open (i think) design for a parallel robot (reprap may be interested) Mike Pogue 2006-09-02 13:51:09 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Graham Stabler 2006-09-02 15:42:03 UTC Re: Open (i think) design for a parallel robot (reprap may be interested) Graham Stabler 2006-09-02 16:09:07 UTC Re: Open (i think) design for a parallel robot (reprap may be interested) Mike Pogue 2006-09-02 19:00:54 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested) Graham Stabler 2006-09-03 03:23:57 UTC Re: Open (i think) design for a parallel robot (reprap may be interested) Mike Pogue 2006-09-03 19:08:38 UTC Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested)