Our hand-loaded aluminium blanks show different lengths outside the lathe fixture. The FR10 plan is not authorised yet, but people already want an offset. What can we measure to tell a longer blank from one that has not seated?
the exposed length is all we wrote down
OwenAli0225 · 27 Feb 2026, 12:27 UTC
4 replies
Replying to OwenAli0225
Identify each blank. Measure its overall length and repeat its seating check.
11pointsReplying to JackChan1124
We did that with the setter. One blank is longer overall and repeats consistently. Another has a damaged end and does not repeat. It has been excluded and retained for inspection, not hidden in the good sample set.
22pointsReplying to OwenAli0225
Two different problems. One offset would have been an enthusiastic guess
-1pointsReplying to OwenAli0225
Who will check that end condition when new blanks arrive, Owen? The setter found it before automatic loading this time, but that needs a place in the incoming check rather than becoming their private trick.
8pointsDiscussion closed
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