Can anyone tell me if it's OK to use a "unipolar" stepper (i.e. one that = has center-tapped coils) *as* a "bipolar"? i.e., just ignore the = center tap and use the two series-connected coils as one. I realize = that this might not be as low of a resistance value as what I might see = with an actual "bipolar" single-coil device, but the question is... will = it work? My instinct is that it should, but perhaps with less startup = torque. What say you all ? Thanks! Jim -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads