Originally Posted by jaru-eri  The steppers I have now is 6-wired unipolar full coiled connected to bipolar drivers. I can only run them very slow before they make an awful noise.
Will it be better for me to buy bipolar stepper motors, or should I try half coil connection or maybe go from 1/8 microstep to 1/4 microstep?
How much holding torque do I need on a router for wood carving? Will half coil connection give enough torque for that kind of machining? |
Sounds like your describing resonance. "awful noise"
Couple of points, if your using the name plate current setting for full coil thats a problem. i.e. if your motor is rated 3A unipolar, your full coil current is .707 * 3A. Point two, your slowness is because of the total coil inductance and the coil voltage to power supply ratio in all probability.
Your half coil low rpm torque is the same as the unipolar torque.
I'd try running half coil before I spent any money.
Power needed to do wood carving depends on the machine size, mechanics and how fast you want to go.