Thread: Cnc plasma build need help plz
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20-01-2016 #10
Yes so try these new numbers and see what happens. Think you'll find a bit of difference.!! You'll go from Max velocity of 750mm/min to potential velocity of 9350mm/min thou you'll never get that with 24v and 5mm pitch screws.
25000khz / 2000 = 12.5mm per Sec * 60 =750mm/min
25000khz / 160 = 156.25 per sec * 60 = 9375mm/min
So has you see the Micro steps make big difference. So high Micro steps with low Pitch means more pulses to do same speed and you only have so many pulses. In this case 25000 per sec.
800/5=160 steps per
Also just to make clear the Steps Per setting isn't a number you can play with to suit the speed. It's a Fixed number based on the number of steps required to move one unit, in this case 1mm. This number is got from the calculation of Micro steps divided by screw pitch.Last edited by JAZZCNC; 20-01-2016 at 11:26 PM.
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