CAD CAM EDM DRO - Yahoo Group Archive

RE: [CAD_CAM_EDM_DRO] optical encoders

on 2003-05-23 05:08:55 UTC
Hi George,
I think you can go up to 400 ppr (most motors in half step mode).
But for microstepping you'll need more ppr, depending of microstepping
factor.
I can upload my project - how I made optical encoder system with about
600 ppr, with disc diameter of 50 mm. Increasing the diameter, you can
proportionally increase number of ppr.
This project is easy, with standard components. You only need to
purchase optical disk, (positive film).
If anyone is interested, sign up me.
Peja

-----Original Message-----
From: george_barr [mailto:george_barr@...]
Sent: Friday, May 23, 2003 12:21 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] optical encoders


I have stepper motors with 200 pulses per revolution (ppr) encoders
on them. I would like to upgrade the disc on the encoders to get
higher resolutions on them. Does anyone know how high of resolution
or PPR I can go? How much are the discs? Any advice?


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Discussion Thread

george_barr 2003-05-23 03:21:05 UTC optical encoders Miroslav Pejic 2003-05-23 05:08:55 UTC RE: [CAD_CAM_EDM_DRO] optical encoders Tim Goldstein 2003-05-23 07:58:15 UTC RE: [CAD_CAM_EDM_DRO] optical encoders Jon Elson 2003-05-23 10:22:43 UTC Re: [CAD_CAM_EDM_DRO] optical encoders george_barr 2003-05-23 15:13:59 UTC Re: optical encoders David A. Frantz 2003-05-23 16:16:39 UTC Re: [CAD_CAM_EDM_DRO] Re: optical encoders John Craddock 2003-05-23 17:07:21 UTC RE: [CAD_CAM_EDM_DRO] optical encoders Miroslav Pejic 2003-05-26 05:18:01 UTC RE: [CAD_CAM_EDM_DRO] optical encoders Miroslav Pejic 2003-05-27 05:49:17 UTC RE: [CAD_CAM_EDM_DRO] optical encoders