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Just realized I've been setting my work offsets wrong for months because my old boss in Milwaukee always said 'eyeball it close enough'.
A part came back scrap for the third time this month, and my lead asked if I was sure about my G54 Z, which finally made me check the manual and see you're supposed to touch off the tool, not the spindle nose.
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verawhite1mo ago
My buddy Dave in the toolroom at my last shop did the EXACT same thing for a whole year. He was setting his Z off the spindle face on a VMC because his old lead told him to. We finally figured it out when his finish passes on aluminum were leaving a weird, wavy pattern every single time. The program was basically cutting air half the time. He had to re-run like fifty parts.
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river3201mo ago
Wait, you were touching off the spindle nose?
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Yeah, touching off the spindle nose? That's wild to me. How does that even work on a day to day basis without everything being off by the length of the tool? Were they just adding that length into every single tool offset by hand? The math alone would make my head hurt.
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