It looks like a brushless DC motor to me. And those are Allegro Hall Effect sensors on the PCB, no doubt for control feedback. That would also explain the extra wires. I bet if you put the meter to them they are connected to the outputs of the hall switch, supply V and common ground. You can probably use a monolithic DC brushless controller IC to get it going pretty quickly. I'm not sure who has the coolest parts these days, but I'm sure a google search would turn up some liely candidates. Matt Pobursky Maximum Performance Systems On Wed, 3 Dec 2003 12:58:26 -0600, D Yates wrote: > Well I opened it. As several people mentioned it does look to be in > some sort of delta configuration, 3 pairs of coils for six total > windings. > There are also some chips soldered to the inside back cover for the > rest of the input wires, but I don't recognize any of them. There > are three marked "6853 / D669" and one marked as "AUGN / 3175 / 529". > The chips don't appear to be wired at all to the windings - could > these be hall effect sensors or something for a feeback mechanism? I > put some pictures on the web if anybody wants to take a peek. > > > www.nerdulator.net/motor/ > > Now another question - is this not a stepper motor? I really don't > care about the feeback mechanism right now, but I'd like to be able > to get it spinning. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads