sam sokolik wrote: > really - I was in on a converstion with art at the cncworkshop - he had said > he thought mach would probably never do rigid tapping. > > Could you explain? I could see if you had the spindle setup as a rotory > axis... but other than that I have no clue. Maybe some external hardware - > doing it outside of mach? (I am not a mach person). Yes, if they use one pulse per rev in a single-channel sensor, then Mach can't know which way the spindle is turning. You have to have a quadrature encoder with index to do it properly. And, you need much more than one pulse per rev so the Z axis can keep up with the rapid speed change when the spindle reverses.
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