6 wire motor options

[john swift]

the other factor you need to take into account is the inductance of the motor coils

the higher the inductance , the longer it takes for the motor current to reach the current the stepper driver is set to

this delay will reduce the speed you can step the motor

by using higher stepper driver supply voltages you can speed up the increase in current
the heat due to the copper & iron losses as you increase the voltage is the limiting factor

as a guide to select the supply voltage

multiplying the square root of the inductance (in mH) by 32 = stepper driver supply

for 2.2mH coils

32 x 1.48 = 47V


for 5mH coils

32 x 2.236 = 71V


using a stepper driver at its 4.2A limit
to drive a 4.7A motor will reduce the motor torque to 89% of its maximum

John