CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] stepper vs servo

on 2001-08-07 17:40:07 UTC
JanRwl,

Have you ever been tempeted to use EMC for your driver software?

Steve G.

JanRwl@... wrote:

> In a message dated 07-Aug-01 19:17:45 Central Daylight Time,
> cadcamcenter@... writes:
>
> > Hope this is incorrect, otherwise the servo may be not that much more
> > better at avoiding spoilt parts than steppers.
> >
> >
>
> The X- and Y- steppers are independent, so, if the controller sends
> move-commands (some number of steps) to both nearly-simultaneously, and one
> stalls against some mechanical obstacle, the other "never knows this
> happened", so, you have a serious snafu! In the servo system, the "computer"
> knows what BOTH are doing (assuming you have shaft-encoders on both X- and Y-
> servos), so, if one gets hung-up, the computer just waits, and/or shuts-down.
> If you are modifying an extant lathe to attach lead-screw drives yourself,
> you will have vastly less grief and expense if you "start out" with steppers,
> at least until you teach yourself what it's all about!
>
> I do not use nor "read" G-code. I only know kinda what it is, and what a
> "block number" is, and that a "G number" tells the machine something like,
> "Hey, this will be a linear move to X and Y..." or whatever. X,Y, and
> Feedrate. I do all MY programming in GWBASIC, using a self-written ASM-86
> patch to "step" the two motors and turn the spindle-motor on/off via the
> printer-port. Simple stuff. FOR-NEXT loops.
>
> [Non-text portions of this message have been removed]
>
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Discussion Thread

cadcamcenter@y... 2001-08-07 17:17:24 UTC stepper vs servo cadcamcenter@y... 2001-08-07 17:22:54 UTC Re: stepper vs servo JanRwl@A... 2001-08-07 17:28:53 UTC Re: [CAD_CAM_EDM_DRO] stepper vs servo Stephen Goldsmith 2001-08-07 17:40:07 UTC Re: [CAD_CAM_EDM_DRO] stepper vs servo Jon Elson 2001-08-07 23:27:10 UTC Re: [CAD_CAM_EDM_DRO] stepper vs servo cadcamcenter@y... 2001-08-08 01:41:39 UTC Re: stepper vs servo Carol & Jerry Jankura 2001-08-08 05:29:24 UTC RE: [CAD_CAM_EDM_DRO] Re: stepper vs servo Jon Elson 2001-08-08 10:12:01 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo brian 2001-08-08 11:31:46 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo cadcamcenter@y... 2001-08-08 14:40:16 UTC Re: stepper vs servo JanRwl@A... 2001-08-08 17:05:31 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo mariss92705@y... 2001-08-08 17:55:44 UTC Re: stepper vs servo Jon Elson 2001-08-08 22:31:10 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo info.host@b... 2001-08-08 23:40:50 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo cadcamcenter@y... 2001-08-09 01:35:56 UTC Re: stepper vs servo Ian Wright 2001-08-09 03:25:59 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo cadcamcenter@y... 2001-08-09 05:02:16 UTC Re: stepper vs servo cadcamcenter@y... 2001-08-09 05:03:05 UTC Re: stepper vs servo cncdxf@a... 2001-08-09 05:49:39 UTC Re: stepper vs servo Chicken & Egg Art Fenerty 2001-08-09 09:01:31 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo Chicken & Egg Tim 2001-08-09 09:22:04 UTC RE: [CAD_CAM_EDM_DRO] Re: stepper vs servo Jon Elson 2001-08-09 10:54:04 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo Jon Elson 2001-08-09 10:59:33 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo Jon Elson 2001-08-09 11:12:13 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo Jon Elson 2001-08-09 11:19:17 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo jguenther@v... 2001-08-09 11:22:02 UTC RE: [CAD_CAM_EDM_DRO] Re: stepper vs servo Jon Elson 2001-08-09 11:27:44 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo Chicken & Egg Alan Marconett KM6VV 2001-08-09 12:06:16 UTC Re: stepper vs servo cncdxf@a... 2001-08-09 12:14:46 UTC Re: stepper vs servo Chicken & Egg Weyland 2001-08-09 12:19:53 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo Alan Marconett KM6VV 2001-08-09 12:45:35 UTC Re: stepper vs servo Weyland 2001-08-09 13:04:05 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo JanRwl@A... 2001-08-09 15:05:59 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo Jon Elson 2001-08-09 21:12:57 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo Jon Elson 2001-08-09 21:19:12 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo Chicken & Egg Jon Elson 2001-08-09 21:50:55 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo M. SHABBIR MOGHUL 2001-08-15 00:28:19 UTC hi all smeboss 2003-03-11 17:42:06 UTC stepper vs servo smeboss 2003-03-11 17:42:06 UTC stepper vs servo Lloyd Leung 2003-03-11 17:54:57 UTC RE: stepper vs servo kdoney_63021 2003-03-11 18:57:34 UTC Re: stepper vs servo smeboss 2003-03-11 19:43:04 UTC Re: stepper vs servo JanRwl@A... 2003-03-11 22:37:23 UTC Re: [CAD_CAM_EDM_DRO] stepper vs servo kdoney_63021 2003-03-13 05:53:42 UTC Re: stepper vs servo smeboss 2003-03-13 07:01:12 UTC Re: stepper vs servo ddgman2001 2003-03-13 10:04:19 UTC Re: stepper vs servo dakota8833 2003-03-13 13:09:35 UTC Re: stepper vs servo Jon Elson 2003-03-13 22:06:45 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo ddgman2001 2003-03-15 14:18:59 UTC Re: stepper vs servo Jon Elson 2003-03-15 22:23:50 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo ddgman2001 2003-03-17 08:56:33 UTC Re: stepper vs servo Jon Elson 2003-03-17 09:34:25 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo Monte Westlund 2003-03-23 16:24:56 UTC Re: stepper vs servo Jon Elson 2003-03-23 17:22:08 UTC Re: [CAD_CAM_EDM_DRO] Re: stepper vs servo Jeff Goldberg 2003-03-23 18:31:48 UTC RE: [CAD_CAM_EDM_DRO] Re: stepper vs servo J Hamilton 2003-03-23 18:54:29 UTC Re: stepper vs servo