I just got my Kflop/Kstep running in open loop using Kmotioncnc. I'm using C:\KMotion431\C Programs\KStep\InitKStep3Axis.c for my c program. When I let the machine sit idle the spindle will move down about .100 but it doesnt show the movement on the green DRO. I installed encoders and they show that the motor is turning, so i dont think it is backlash or mechanical issue causing the move. If I turn off the stepper motor power supply I dont experience the problem. I wonder if it has to do with the amplifier being turned off when it sits idle?