I have a ramps 1.4 board and 5 stepstick attached.
I am running from a bench power supply at 12.7v but with all the drivers maxed the draw is 0.5 amps with them all running, is this right?
when the hot end starts running the draw jumps to 2.0 - 2.3 amps.
all the drives are cool to cold. i bought the items from reprapworld.