I have a desktop engraver that has the nema 17 stepper motors.I have set-up the controlers with about 1.5 amps,and it does OK. The Z axis is using a dremel for my engraver.The problem is the holding power does not seem to be strong enough to keep the dremel raised,it will often drop to the bottom of the axis.
My question is should I increase the current to that stepper,and may be it will hold that dremel where its supposed to be at.Im using Geko 201's so i can set the current up a little.The voltage is at 32 volts and they dont get very hot.
Or should I change the Z axis stepper to a Nema 23 that I can increase the current enough that the holding power will stop it from dropping suddenly.