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TIL my finish pass was cutting air for 3 weeks because of one loose setscrew on the Z coupler
Was running a batch of 200 aluminum brackets in cell 2 and kept seeing a hair of taper on the face, so I did what any of us would do and blamed the tool holder and bumped the comp a few tenths. Turns out the setscrew on the Z axis coupler had backed off just enough that the whole head was creeping about 0.004 on plunge moves, and the finish pass was basically riding on the rough. Anyone else got a checklist for checking couplers and backlash without pulling the whole axis apart?
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