Rigid-ish tapping centroid acorn - still encoder issues
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of course it stripped out the top 3 threads on the last hole when i wasnt looking
mill is a converted PM-30MV
spindle motor is a 2.1hp 1600w servo, tapping at 640rpm
tap holder is a tension/compression holder from tormach
tap is 1/4-20 into 1/2" aluminum plate
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