Y axis is making X axis stall...!!

[fasteddy]

Hi Jonathan..

I had always thought bipolar series was preferred to get the higher speeds? Is parallel better?

Steve..

[Jonathan]

I had always thought bipolar series was preferred to get the higher speeds? Is parallel better?

Yes parallel is generally faster. Bear in mind the current the drivers is set to also makes a difference as the torque is roughly proportional to the current (until you go much above the rated current and the rotor saturates). If the nearest current setting to the current in series is greater than the parallel setting then it may not make much difference. Karl has the motors on 2.37A, and the rating is 2.1A so it's already 13% over. The PM542 maximum is 4.2A, so the same as the motors ... so if putting in parallel gains less than 13% then you may not gain anything though it would be nicer. There's more to it than that though... in the end it's easiest to just try it and see. Keep an eye on the motor temperature too.