On 3 January 2016 at 21:35, <richsh...@comcast.net> wrote: > ,I too have a similar problem. Built a rotary table (small, about 4" dia). > Ordered a worm and wheel pair from Boston Gear, thought I ordered a 72 tooth > worm wheel, which moves 5 degrees per one rev of the worm, divided by 400 > steps, resolves to 0.0125 degrees per pulse.... Can't accurately read the > catalog any more. Actually ordered and got an 80 tooth worm wheel.... 4.5 > degrees per one rev of the worm, divided by 400 steps, resolves to 0.01125 > per pulse. Looking into a gear pair from HPC gears to mechanically correct > the problem.
It is trivial to solve that problem in software. Adding gears will just add backlash. Set the step scale to suit the actual gears and it will all work just fine. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
