Re: Re: Re: Polar Coordinates CNC?
Posted by
IMService
on 2002-11-04 06:17:20 UTC
> Date: Mon, 4 Nov 2002 06:30:22 -0600A turntable with skate wheels around the OD sitting on a 1/4 thick, flat
> From: Ray Henry <rehenry@...>
>Subject: Re: Re: Polar Coordinates CNC?
>Well, yea. I can see the device but it seems to me that by the time you
>build C with center bearings, drive, and some sort of support for
>cutting forces around the outside of the suggested 4' diameter you'd have
>more work into it than a conventional mill and all to save two slides, a
>ball screw, and their supports.
rolled sheet would probably be flat enough for most CNC router work.
They usually are happy with a 6 inch Z travel. Remember the X is fixed
and technically it only has to go to the center. 2 feet of precision guide
ways to support an axis that in all other designs requires 4 feet plus
another 4 feet of support on each side. This is a major reduction in
complexity with very little loss of resolution, repeatability, or massiveness.
>I did recently see a mega lathe with a C axis on the flat like this. TheMy interest was actually sparked in making a small bench top machine.
>turntable (spindle) had to be 10 - 12 feet across.
I'm thinking 12x12 inches rectangle (on the turntable), maybe less. 6
inch Z height. Rack and pinion on the X and Z w/B-W skate wheel guides,
and a large spur gear and pinion w/ motor mounted vertically, underneath
the turntable. disk overhang protects the moving parts from dust and swarf.
Angle Iron/channel frame. Might be a kick-butt kind of kit or entry level
machine with a router motor installed.
Best Regards, Fred Smith- IMService
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Discussion Thread
Ken Jenkins
2002-11-03 08:43:30 UTC
Re: Polar Coordinates CNC?
wenger2k
2002-11-03 10:46:36 UTC
Re: Polar Coordinates CNC?
Fred Smith
2002-11-03 11:28:42 UTC
Re: Polar Coordinates CNC?
alenz2002
2002-11-03 12:52:57 UTC
Re: Polar Coordinates CNC?
Alan Marconett KM6VV
2002-11-03 15:58:20 UTC
Re: Polar Coordinates CNC?
Ray Henry
2002-11-03 17:38:09 UTC
Re: Re: Polar Coordinates CNC?
Fred Smith
2002-11-03 18:06:36 UTC
Re: Polar Coordinates CNC?
Ray Henry
2002-11-04 04:40:06 UTC
Re: Re: Polar Coordinates CNC?
IMService
2002-11-04 06:17:20 UTC
Re: Re: Re: Polar Coordinates CNC?
allan_reinhard
2002-11-04 11:06:09 UTC
Re: Polar Coordinates CNC?
Ray Henry
2002-11-04 18:58:47 UTC
Re: Re: Re: Re: Polar Coordinates CNC?
Raymond Heckert
2002-11-04 19:15:19 UTC
Re: [CAD_CAM_EDM_DRO] Re: Polar Coordinates CNC?
bjammin@i...
2002-11-05 05:06:55 UTC
Re: [CAD_CAM_EDM_DRO] Re: Polar Coordinates CNC?
Ray Henry
2002-11-05 09:21:37 UTC
Re: Re: Re: Polar Coordinates CNC?
Dan Mauch
2002-11-05 10:16:58 UTC
DRO Boards
bjammin@i...
2002-11-05 14:39:00 UTC
Re: [CAD_CAM_EDM_DRO] Re: Re: Re: Polar Coordinates CNC?
macfool68
2002-11-12 16:45:59 UTC
Re: DRO Boards
Van Der Sandt Coert
2002-11-12 23:05:20 UTC
RE: [CAD_CAM_EDM_DRO] Re: DRO Boards
Dan Mauch
2002-11-13 06:38:47 UTC
RE: [CAD_CAM_EDM_DRO] Re: DRO Boards
macfool68
2002-11-13 06:52:17 UTC
Re: DRO Boards
Dan Mauch
2002-11-13 07:14:42 UTC
RE: [CAD_CAM_EDM_DRO] Re: DRO Boards
Dan Mauch
2002-11-13 07:28:16 UTC
RE: [CAD_CAM_EDM_DRO] Re: DRO Boards
Tim Goldstein
2002-11-13 09:11:12 UTC
Re: [CAD_CAM_EDM_DRO] Re: DRO Boards
j.guenther
2002-11-13 09:22:49 UTC
RE: [CAD_CAM_EDM_DRO] Re: DRO Boards
aussiedude
2002-11-13 09:29:31 UTC
RE: [CAD_CAM_EDM_DRO] Re: DRO Boards
Dan Mauch
2002-11-13 10:31:44 UTC
RE: [CAD_CAM_EDM_DRO] Re: DRO Boards
Dan Mauch
2002-11-14 12:56:05 UTC
RE: [CAD_CAM_EDM_DRO] Re: DRO Boards
Peter Homann
2002-11-17 16:59:38 UTC
Running Unipolar steppers with a Bi-polar driver?
turbulatordude
2002-11-17 17:27:23 UTC
Re: Running Unipolar steppers with a Bi-polar driver?
jeffalanp
2002-11-17 20:56:41 UTC
Re: Running Unipolar steppers with a Bi-polar driver?
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2002-11-17 22:59:27 UTC
RE: [CAD_CAM_EDM_DRO] Re: Running Unipolar steppers with a Bi-polar driver?
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2002-11-18 08:09:41 UTC
Re: [CAD_CAM_EDM_DRO] Re: Running Unipolar steppers with a Bi-polar driver?
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2002-11-18 09:40:29 UTC
Re: Running Unipolar steppers with a Bi-polar driver?
Tim Goldstein
2002-11-18 10:35:42 UTC
Re: [CAD_CAM_EDM_DRO] Re: Running Unipolar steppers with a Bi-polar driver?
mariss92705
2002-11-18 17:07:08 UTC
Re: Running Unipolar steppers with a Bi-polar driver?
jeffalanp
2002-11-18 21:56:32 UTC
Re: Running Unipolar steppers with a Bi-polar driver?
mariss92705
2002-11-19 10:59:15 UTC
Re: Running Unipolar steppers with a Bi-polar driver?
jeffalanp
2002-11-20 22:40:35 UTC
Re: Running Unipolar steppers with a Bi-polar driver?