Hello guys, a newer here.
I try to do my vicious cnc but i stop on electronic part.
I have 5 nema 17 with 3.1v, 2.5A, i use arduino mega 2560, ramps 1.4 and a drv8825.
When i make the connections my stepper doesn’t works good, don’t rotate more than one step and the resistence stay hot.
i try to work with 1/32 Steps with all jumpers.
I make the calculations of Vref.
V * A = w
3.1 * 2,5 = 7,5 W
7,5/12= 0.646 Vref.
When i work with parallels steppers how much i put?
Thanks for all