Could I have caught a bug in software?
Yesterday was the first time I played a bit with 2400 steps (mode 11) per unit and 17 units per second (40800 pulses/sec, the max it will spin without stalling at this voltage) and noticed - you can actually hear the difference - that when I jog my machine forward it runs a bit quicker than when I jog it backward. Let's say it does 17 u/s forward and 16 or maybe even 15 u/s backward. Does anyone have a simple explanation of this?
James do you have a linistepper and stepper motor handy to check this out? High power 1, mode0 1, mode1 1, 12v and let it rip to just before the stepper stalls. And then jog back and forth and listen for any differences in pitch. |