>> Were the 'errors' I showed (~.015mm over a 50mm move) in the right ball >> park for a non-ball-screw benchtop mill driven by steppers?
This sounds well within then range if normal screws if not better than I would have expected. Another way of looking at this is it is 0.03% error. Very small. The trouble with non-ball-screws is wear from sliding as compared balls with rolling. The nuts and screws wear quickly and therefor the calibration goes out quite quickly. Cheers Wallace. ------------------------------------------------------------------------------ Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58041391&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
