ngparker@george.lbl.gov (Nathan G. Parker) (08/24/90)
I just received a broken Rodime 20+ hard disk. I opened it up and took out the two stepper motors, thinking that they would be useful for something, but I don't know how to use them. The larger motor (used to turn the disk) has no model number on it. It has 5 wires coming out of it and feels like it has 4 positions (90 degrees). The smaller motor (used to move the head) says "Sinano Electric 4H4009S-0412 66A". It has only 4 wires and feels like it has about 360 positions (about 1 degree). Can someone tell me how I could get these motors to do something useful? I'd like to be able to give one of these motors a certain number of "clicks" and have it turn that number, in whichever direction I choose. Is this difficult? Please reply by mail. Thanks. -- Nathan Parker <ngparker@george.lbl.gov>