CAD CAM EDM DRO - Yahoo Group Archive

Re: Backlash

Posted by Vince Endter
on 2007-03-25 08:12:57 UTC
The backlash is the same regardless of where in the travel the
ballscrew/nut is. For the backlash to be caused by flexing, the
ballscrew would have to deflect .215". I can garentee that the
ballscrew is not flexing that much. As for twisting, the pully in the
video rotates almost 4 degrees before the table starts to move. The
table takes about 40 pounds of pressure to get it moving and about 5
pounds to keep it moving. Hiwin said their ballscrew have a working
range well over 400 pounds.

Vince
>
> If you do the test with the screw fully extended and fully retracted
> can you not differentiate between flexing/twisting of the screw and
> flexing of the yoke. Maybe even extrapilate the error back to an
> effectively zero length screw to filter out ther screw error.
>
> Regards
> Phil

Discussion Thread

Blue 2005-02-09 10:10:31 UTC Backlash Jon Elson 2005-02-09 11:14:37 UTC Re: [CAD_CAM_EDM_DRO] Backlash Blue 2005-02-09 12:06:19 UTC Re: [CAD_CAM_EDM_DRO] Backlash Vince Endter 2007-03-24 09:47:12 UTC Backlash Mark Vaughan 2007-03-24 11:25:34 UTC RE: [CAD_CAM_EDM_DRO] Backlash R Rogers 2007-03-24 12:17:48 UTC Re: [CAD_CAM_EDM_DRO] Backlash Polaraligned 2007-03-24 13:05:11 UTC Re: Backlash Vince Endter 2007-03-24 15:04:08 UTC Re: Backlash Vince Endter 2007-03-24 15:08:56 UTC Re: Backlash Mark Vaughan 2007-03-24 15:26:28 UTC RE: [CAD_CAM_EDM_DRO] Re: Backlash Polaraligned 2007-03-24 17:19:09 UTC Re: Backlash Jon Elson 2007-03-24 21:38:16 UTC Re: [CAD_CAM_EDM_DRO] Backlash Vince Endter 2007-03-24 21:45:39 UTC Re: Backlash ballendo 2007-03-25 00:02:24 UTC Re: Backlash ballendo 2007-03-25 00:06:36 UTC Re: Backlash Philip Burman 2007-03-25 04:22:31 UTC Re: Backlash Vince Endter 2007-03-25 08:12:57 UTC Re: Backlash Graham Stabler 2007-03-25 08:24:01 UTC Re: Backlash Mark Vaughan 2007-03-25 09:33:29 UTC RE: [CAD_CAM_EDM_DRO] Re: Backlash Vince Endter 2007-03-25 11:24:43 UTC Re: Backlash Jon Elson 2007-03-25 11:33:45 UTC Re: [CAD_CAM_EDM_DRO] Re: Backlash R Rogers 2007-03-25 12:31:13 UTC Re: [CAD_CAM_EDM_DRO] Re: Backlash David G. LeVine 2007-03-25 13:07:26 UTC Re: [CAD_CAM_EDM_DRO] Backlash Mark Vaughan 2007-03-25 13:46:33 UTC RE: [CAD_CAM_EDM_DRO] Re: Backlash Mark Vaughan 2007-03-25 14:14:22 UTC RE: [CAD_CAM_EDM_DRO] Re: Backlash Vince Endter 2007-03-25 20:17:54 UTC Re: Backlash Vince Endter 2007-03-25 20:19:24 UTC Re: Backlash Vince Endter 2007-03-25 20:22:07 UTC Re: Backlash David G. LeVine 2007-03-25 21:24:12 UTC Re: [CAD_CAM_EDM_DRO] Re: Backlash R Rogers 2007-03-25 21:37:00 UTC Re: [CAD_CAM_EDM_DRO] Re: Backlash Jon Elson 2007-03-25 21:58:54 UTC Re: [CAD_CAM_EDM_DRO] Re: Backlash Jon Elson 2007-03-25 22:04:34 UTC Re: [CAD_CAM_EDM_DRO] Re: Backlash Vince Endter 2007-03-26 05:09:28 UTC Re: Backlash Jon Elson 2007-03-26 20:57:14 UTC Re: [CAD_CAM_EDM_DRO] Re: Backlash Jack Mc Kie 2008-01-13 17:39:51 UTC Backlash figNoggle 2008-01-13 18:36:12 UTC Re: [CAD_CAM_EDM_DRO] Backlash Jack McKie 2008-01-16 13:10:54 UTC Re: [CAD_CAM_EDM_DRO] Backlash