I am using steppermod.o on a 450 mhz AMD K6 and getting 25khz solid as can be. It will do more, but that is fast enough for my iron. Sounds like you need to start tweaking the cycletime parameters. Tim [Denver, CO] ----- Original Message ----- > Your 30khz steprate on a 450mhz machine sounds better than I am getting on a > 1.4ghz machine though. > > Richard