Thanks Jim, >>>>>>>>>>>>I then switched to a simple chopping driver with no micro-steps, and let HAL do the work. HAL was
capable of driving steps well up into the 50 microsecond range. >>>>>>>>>> Do you mean here that you used the basic output from EMC2 or that you programmed in an extra layer? I didn't find much difference in maximum speed between the microstepping and full stepping - perhaps the stepper motor's own inertia is also limiting the speed... -- Best wishes, Ian ____________ Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
