Quote Originally Posted by Pandinus View Post
Where are your step / dir pulses coming from ???? older with windows on it??? low end control software ??? the glitches look to be every second.... OS timing issues?? software DRO update timing??? Turning of real time DRO or onscreen graphical tool position update may help some. Even better - set up a 555 timer for your step pulses and see if the hiccups stop...
Good spotting with the 1 second timing. I'll run the same test at a different speed to see if the 1 second tick remains or not.
The control is mach3 running on xp via a dell 600m laptop. All my computers here are laptops, I don't have a desktop to try unfortunately.