ok
i am using some Chinese stepper motor on my cnc mill with following specs
12v
0.3 a per phase
3100 g-cm torque
Using with a3982 same as stepper driver 1.2 . it got a pot but i dont know what to do with it. I am using 2 of them in full step as they have weird problem that when i give 5 v to there micro step pin from sanguino THEY GET REALLY HOT IN FLASH OF HALF SECOND. as soon as i turn on sanguino but no problem when i give ground. i can see the lights are dimmer on sanguino when i connect to a 5v, i like to run them on full step but i dont see the difference. Should i give power through 7805 from 12v or there is other problem as similar 3rd driver who got different cap between power supply work fine in both mode. I dont think its problem of that cap
My machine is not smooth, that i can understand, but one of my smoothest axis also stalling i cant get more then 150 mm/min at my 15tpi rods.
I am using a pc power supply.
what should i do to increase the speed because after that they stall , should i try more voltage ? Please help me understand stepper motor torque , current and voltage stuff
