For my first stepper based application ( a coil winder) I bought a very strong new stepper (86HY62DE04, 4.5amps per phase, 8 wires).
I use it with Unipolar mode.
When trying it "manually" (ie connecting coils by touching wires, no electronic switching), I can generally make it work normally: I am able to drive the motor ClockWise or AntiClockWise, BUT sometimes, for unknown reason, the motor seems blocked: I have to manually rotate the axis on another position in order to have it operate again.
Any idea? Is it becase of my "manual' conenections, which obviously lack cleanness: with 4 amps, there is a nice sparkle and connection is proably not instantaneous?
Or is my motor damaged :-( ?
Many thanks for your help
stepers dont run that way
i bought a small kit vrty reasonable followed directions
and it will run 1 steper
sometimes they even include the motor
go to yahoo or google and do search your searching
the info is out there
im sure its your method, and not the motor. Ive heard of people pulsing a motor driver manually, but never actually pulsing the motor directly. its a very complex pattern to try to do manually. That is what IC chips are for.