i have a 6090 cncest machine and I have upgraded it to with a planet cnc MK3DRV controller board. I have got it all running except i cannot figure out the ( stepsPer nuit ) the settings under motor drives ( microstrepping ) and ( current ). the motors are 57 mode, 3A two-phase motor. I have the microstepping set at 1/8 and the current 1.85 this will move the machine, but it is not right. i would like to hear from anybody who has upgraded there controller to the MK3DRV