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My old mentor told me in 2004 to always write down my offsets, and I finally quit doing it last month
Back in 2004 at a small job shop in Dayton my mentor made me keep a paper log of every offset change on every setup, and I kept that habit for close to two decades. Last month I went fully digital and started trusting the controller memory instead, then had to re-cut a part three times because nobody wrote down the tool wear from the previous run. Does anyone here still keep a paper trail on offsets, or have you all moved on to trusting the machine?
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knight.anna10d ago
The thing nobody talks about is how controller memory gets wiped during a battery swap or a software update, and then you're standing there with nothing. I've seen it happen twice at a shop I worked at, one guy lost every offset on a lathe that had been dialed in over six months. Paper doesn't crash, paper doesn't need a backup, and it doesn't care if IT pushes a firmware patch on a Tuesday night. Maybe it's just me but the real risk isn't trusting the machine, it's trusting that nobody will ever clear it. A log book also shows you the trend, like when a tool starts creeping .002 every 20 parts, you catch it before it scraps anything. The controller just shows you where you are right now, not where you've been.
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keving9310d ago
How often are you actually writing stuff down though, like every setup or just when something changes? At a shop with a hundred tools per machine and three shifts running, that log book gets real thin real fast unless somebody is strict about it. And who owns it when the guy who wrote it quits or gets moved to days? Not saying you're wrong about the memory wipe thing because that stuff absolutely happens, but the paper only saves you if the habit sticks, and habits are the part that always falls apart.
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