George .. and Bill... Thanks for the info! I'll give it a shot as soon as I can. Jim ----- Original Message ----- From: "George Sacco" To: Sent: Wednesday, December 03, 2003 9:04 AM Subject: Re: ] Stepper Motor question > I purchased surplus Vexta, 8 wire unipolar motors and the supplier > claims that they can be configured for unipolar or bipolar operation. > Their bipolar documentation suggests that the center taps are connected > (8 wire case) and ignored. I am using the motors in unipolar mode so I > can't validate the suppliers claim. Hope to hear from others on > performance issues. > > George > > > -----Original Message----- > From: pic microcontroller discussion list > [mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of Jim Tellier > Sent: Wednesday, December 03, 2003 10:48 AM > To: PICLIST@MITVMA.MIT.EDU > Subject: [EE:] Stepper Motor question > > 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 > > -- > http://www.piclist.com hint: PICList Posts must start with ONE topic: > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads