At 09:23 AM 6/7/2008, you wrote: >On Fri, Jun 06, 2008 at 03:57:49PM -0700, Dave Engvall wrote: > > OK, more dumb questions. Would a short ball screw do what you want? > > It certainly would be more precise than acme rod; or do I miss the > > intent? > >I'm not sure I could get the ball of an indicator lever to ride in the >track on a ballscrew. > >Last year we noticed a bit of dragging of the tap on the threads while >the tap was backing out at the end of a rigid tap cycle. My intent is >to try to quantify and understand this effect so we can offer >adjustment for it in software. > > > If I remember I can bring ER40 1", .75 and .625 collets. I think I > > have all three. > >I wish I could remember if the chuck is ER40. I think it is. > >Thanks for your help Dave. > >Chris
What is the delay (in degrees of rotation) between reading the spindle encoder and positioning the Z axis? That delay would be in opposite directions going and coming out. __________ Andre' B. Clear Lake, Wi. ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
