Well, I have this linear motion table thing (made by NEAT) that I found a year or so ago, and am wondering now what the hell to do with it. Anyway, I decided to first figure out how to use the thing, so I used a 5v transformer and figured out the pinouts, and that there is, indeed, a bipolar stepper motor inside. Anyway, this is the first bipolar stepper motor I have ever used and I am wondering how to use the basic stamp to drive this thing, without harming the basic stamp. I know that since its bipolar, I need to reverse the polarity on the coils inside to drive it, but I dont know how to do that without using 8 of my bs2's pins, and a load of transistors. So, I'm wondering if anyone has ever driven a bipolar stepper with the BS(1,2,whatever) and how they did it. I am aware that they make stepper motor drivers, but I dont know where to get these little buggers, and I would like to use only a bs2. I do have a microstepper I used to drive a unipolar, but it in enourmous, and probably won't fit into the size constraints of my project. Thanks for the help in advance!