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General Mach Discussion / How many spindle index pulses per revolution

« on: October 11, 2013, 05:26:32 PM »

Hi, I have just recently almost completed my conversion of a AMA25LV mill to CNC, and have come upon a problem with the spindle index.

I have my spindle encoder setup (see photo) and it is communicating with mach3.  However it has 16 pulses per revolution (see photo).

I have searched around but am unclear whether mach3 accepts multiple pulses per revolution or just one....

If it is one then I can blank some of the index encoder holes (see photo) and leave only one.  But it would be a shame as I was planning on rigid tapping and blocking up all those holes would loose resolution...

There is a text field in 'Spindle Calibration' for 'number of pulses per revolution' but it is always grey.  Seems strange.