Can someone explain how the micro stepping works with the DQ542MA drivers? The table on the drivers has 400, 800, 1600, ... Does this table assume 0.9° steppers i.e., (1/1, 1/2, 1/4)? What do people normally use for micro stepping?
yes, so 400 is 2x200 = 1/2 microstep (200 steps per turn is the 0.9deg step typical) 800 = 1/4 microstep.. For 8mm lead screws 1/4 to 1/8 (800 or 1600) is plenty for belts 1/16 (3200) is typical, from my experience
I am using 1/4 on my 8mm pitch leadscrew Z and 1/8 on my 2mm pitch belts (40 steps/mm). Happy so far. 7000mm/min rapids on X and Y and 4000 on Z.
JTBC: they ARE assuming a 200 step/revolution? This really doesn't make sense for me as then there is no 1:1 (ie. you can ONLY µstep).
I am still having some issues with my configuration. You can see my configuration here. Essentially, I am not finding any difference with the switches 400-1600. Do I have something wired wrong?
There are some errors on the table you posted. By difference are you talking about the vibration? You are turning off the power when switching?
I think the power needs to be cycled for step changes to take effect, i thought this was in the manual but i don't see it now.. As for the errors, I take it back, I see now you were troubleshooting by changing settings with the same micro-steps.. What speed and pulse duration are you running and what acceleration?
Using the defaults on the Planet-CNC software. Will publish them in a bit. Update: added settings export.
Note that I cycled power as you suggested and observed the correct displacement with: 800 pulses/rev, 1101 SWX, & 100 SPU. Thankyou for the tip.
