Also, it looks like the stepperworld drives are not chopper type drives and require series resistors. A chopper drive with microstepping like the Gecko would be much better, and work with a smaller power supply. There is a white paper on the Gecko site that says they only need a supply rated at 2/3 of the current setting. With the Geckos driving the full coils in bipolar, you could probably get by with a 15 to 20 amp supply of 24 to 48 volts. |