I've tried rutex drives and they can't handle the heat. Even with a ton of braking resistanceadded. So I want to try to use the old gettys scr drives and use the rutex step and dir to analog cards. Or maybe some other motion control card. First I need to know how to wire the old drives. The wiring diagrams from the machine seem to leave a lot unsaid. Can any one tell me how to hook up these drives?