CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] MAX speed of an rotary encoder

Posted by Patrick J
on 2003-08-11 04:41:15 UTC
> No pulses, I guess is what you mean.
hehe, yeah
no pulses means no flanks of the pulses so..amounts to the same thing :-)


> Now, when you say it stays high, is that the output of the encoder
> directly, or the output of the optocoupler? Many optocouplers,
> especially Darlington ones, are REALLY slow, and the speed you
> quote sounds very much in that range. If the signal from the
> encoder is actually OK, but the signal OUT of the opto is where the
> problem shows up, then you need faster opto-couplers. You might have
> to use a phototransistor with heavy load and a booster transistor
> after it, to get good speed. There are also logic-out optocouplers
> that have very fast receivers for this kind of problem.
> Jon

oh, I didnt think of that it could be the optocouplers!
And yes, its darlington optocouplers.

Good suggestions, I'll check that out
Thanxs!

Discussion Thread

Patrick J 2003-08-10 15:16:27 UTC [CAD_CAM_EDM_DRO] MAX speed of an rotary encoder Jon Elson 2003-08-10 16:34:36 UTC Re: [CAD_CAM_EDM_DRO] MAX speed of an rotary encoder Patrick J 2003-08-10 20:19:48 UTC Re: [CAD_CAM_EDM_DRO] MAX speed of an rotary encoder Tim Goldstein 2003-08-10 21:43:09 UTC RE: [CAD_CAM_EDM_DRO] MAX speed of an rotary encoder Jon Elson 2003-08-10 23:24:42 UTC Re: [CAD_CAM_EDM_DRO] MAX speed of an rotary encoder Patrick J 2003-08-11 04:41:15 UTC Re: [CAD_CAM_EDM_DRO] MAX speed of an rotary encoder Patrick J 2003-08-11 04:43:33 UTC Re: [CAD_CAM_EDM_DRO] MAX speed of an rotary encoder Kim Lux 2003-08-11 08:48:22 UTC Bent Nook ballscrews ????? Harvey White 2003-08-11 09:01:19 UTC Re: [CAD_CAM_EDM_DRO] MAX speed of an rotary encoder Carlos Guillermo 2003-08-11 09:21:36 UTC RE: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-11 09:46:16 UTC RE: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Jon Elson 2003-08-11 09:51:08 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Dan Mauch 2003-08-11 10:34:23 UTC RE: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-11 10:42:32 UTC RE: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Bill Kichman 2003-08-11 11:08:14 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Carlos Guillermo 2003-08-11 11:08:27 UTC RE: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-11 12:10:58 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-11 12:17:20 UTC RE: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Carlos Guillermo 2003-08-11 15:52:21 UTC RE: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-11 16:21:05 UTC RE: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-11 16:26:09 UTC Update on bent Nook ballscrews. Kim Lux 2003-08-11 16:29:19 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-11 16:44:50 UTC Request for ideas for lathe Z axis ballscrew covers dougfennell2000 2003-08-11 17:07:54 UTC Re: Request for ideas for lathe Z axis ballscrew covers Bill Kichman 2003-08-11 17:32:36 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Bill Kichman 2003-08-11 17:51:42 UTC Re: [CAD_CAM_EDM_DRO] Request for ideas for lathe Z axis ballscrew covers Jon Elson 2003-08-11 21:17:47 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Jon Elson 2003-08-11 21:27:31 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Jon Elson 2003-08-11 21:37:56 UTC Re: [CAD_CAM_EDM_DRO] Request for ideas for lathe Z axis ballscrew covers Jon Elson 2003-08-11 21:40:44 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Chris Baugher 2003-08-12 00:08:42 UTC Re: [CAD_CAM_EDM_DRO] Request for ideas for lathe Z axis ballscrew covers Les Newell 2003-08-12 00:11:04 UTC Re: [CAD_CAM_EDM_DRO] Request for ideas for lathe Z axis ballscrew covers Kim Lux 2003-08-12 06:44:39 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Dan Mauch 2003-08-12 07:00:36 UTC RE: [CAD_CAM_EDM_DRO] Request for ideas for lathe Z axis ballscrewcovers ballendo 2003-08-12 07:26:57 UTC Does this make sense? was Re: Bent Nook ballscrews ????? ballendo 2003-08-12 07:30:02 UTC Does this make sense? was Re: Bent Nook ballscrews ????? Bill Kichman 2003-08-12 07:59:11 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-12 08:00:35 UTC Re: [CAD_CAM_EDM_DRO] Does this make sense? was Re: Bent Nook ballscrews ????? mayfieldtm 2003-08-12 08:08:54 UTC Re: Bent Nook ballscrews ????? Les Newell 2003-08-12 08:13:02 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-12 08:14:52 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-12 08:17:55 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? ccq@x... 2003-08-12 08:40:22 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Les Newell 2003-08-12 10:38:02 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Jon Elson 2003-08-12 10:42:58 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Carlos Guillermo 2003-08-12 11:53:32 UTC ballscrew preload torque drag, was: Bent Nook ballscrews ????? Kim Lux 2003-08-12 12:29:47 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-12 12:34:30 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Les Newell 2003-08-12 14:13:46 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Peter L. Peres 2003-08-12 14:58:08 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Jon Elson 2003-08-12 22:35:27 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? ballendo 2003-08-13 02:17:21 UTC Re: Bent Nook ballscrews ????? ballendo 2003-08-13 03:11:52 UTC Re: ballscrew preload torque drag, was: Bent Nook ballscrews ????? Torsten 2003-08-13 05:49:54 UTC Re: Bent Nook ballscrews ????? Kim Lux 2003-08-13 06:29:26 UTC Re: [CAD_CAM_EDM_DRO] General machine discussion, was Bent Nook ballscrews ????? Mike Gann 2003-08-13 06:41:56 UTC RE: [CAD_CAM_EDM_DRO] General machine discussion, was Bent Nookballscrews ????? Kim Lux 2003-08-13 06:45:20 UTC Re: [CAD_CAM_EDM_DRO] Ballscrew loads. Was Bent Nook ballscrews ????? Kim Lux 2003-08-13 06:48:50 UTC RE: [CAD_CAM_EDM_DRO] General machine discussion, was Bent Nookballscrews ????? Dan Mauch 2003-08-13 08:54:13 UTC RE: [CAD_CAM_EDM_DRO] General machine discussion, was Bent Nookballscrews ?????