[James Newton]

You are right, it doesn't make any real difference and the Linistepper does work with any 2 phase, unipolar motor up to a few amps (depending on the mode) and between about 9 and 35 volts no matter how much it turns when you step it.

Those motors should be fine, but you will need to adjust the sense resistors way up to keep from overdriving them.

And, by the way, I'll have kits back in stock around the end of this week.

[spiritlodger]

You are right, it doesn't make any real difference and the Linistepper does work with any 2 phase, unipolar motor up to a few amps (depending on the mode) and between about 9 and 35 volts no matter how much it turns when you step it.

Many thanks for confirming that. I think I had been reading so much around the subject I had ended up confusing myself.

Those motors should be fine, but you will need to adjust the sense resistors way up to keep from overdriving them.

Using the calculator, I reckon that these Howard Ind. 1-19-4201 motors will need around 6.25 ohms @ 0.5W for the sense resistors. I have ordered 3 boards, but will experiment with one first, to measure the performance of these motors.

And, by the way, I'll have kits back in stock around the end of this week.

Good news, keep up the good work, and thank you for your help.