Jumping in - I have had this with the MachineKit. No noise but as I had the 'scope on the signals I spotted the fidgeting Dir. I had no pulses on Step line, just Dir hunting. I was worried that it might stop the stepper drivers going to reduced current mode but with the ones I was using this was OK.
Best wishes John Prentice -----Original Message----- From: Stephen Dubovsky [mailto:[email protected]] Sent: 22 February 2014 16:33 To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Crackling motors using Beaglebone Are steps also being generated (back and forth) or is just the direction line toggling (w/ no steps)? On Sat, Feb 22, 2014 at 10:56 AM, Mark Tucker <[email protected]> wrote: > I seem to remember there being a fix for this around v2.3 or something > to stop the stepper motors hunting.which i assume must have been a > parameter to set the tolerance for acceptable position. > Does this not apply when using hardware generated pulses? > I will have to leave the beaglebone on the bench until charles has > time to sort this one out. > I don't think it is doing any damage but it really does sound awful. > ------------------------------------------------------------------------------ Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121054471&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
