On 5 September 2013 19:08, Russell Brown <[email protected]> wrote:
> 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? Not brilliant, but then I doubt that the machine is driven by super-precision screws. > Should I expect a commanded 50mm move to travel 0.040mm less than 50mm ? > > Does the variation in actual distance moved indicate missed steps? (the > actual move varied with different microsteppings) You may be missing steps, it is always a possibility with stepper machines. I don't suppose you have any way to get the DRO feedback into the PC? Closing the loop might be a fun project. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
