Re: [CAD_CAM_EDM_DRO] minimill

Chuck,
 
Are you using original screws on the mini-mill? .  Yours looks like backlash but a bit much.   Be sure your screw nuts are held tighly by the set screws.   I ended up changing to ball screws because of backlash  issues.   It was easier than I thought but required using another mill to hog out the bottom of the table to accomodate the nut/screw.
 
Jack

--- On Tue, 5/24/11, ebiz_59 <chuckm@...> wrote:


From: ebiz_59 <chuckm@...>
Subject: [CAD_CAM_EDM_DRO] minimill
To: CAD_CAM_EDM_DRO@yahoogroups.com
Date: Tuesday, May 24, 2011, 8:20 AM


 



Just uploaded a picture of first attempt (after reassembly) of a 1.5" circle. Not a Michelangelo moment, but the Y max/min transitions look pretty good. I was surprised to watch the unit take off in a straight line on the far left side. Is this a backlash setting issue in MACH or something else - like steps per unit? BTW Y is about 0.040 taller than X. http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/photos/album/1323585980/pic/2048327748/view?picmode=large&mode=tn&order=ordinal&start=1&dir=asc

Thanks, Chuck








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