Cannot judge FR5 loading from our spacer stick-out readings

HassanBrown0878 · 2025年10月10日 05:07 UTC

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HA
HassanBrown0878
Our hand-loaded spacer blanks show different exposed lengths. How much is blank variation? We recorded nothing else.

14 条回复

LE
LeoBaker0449

Measure the individual blank lengths and identify each sample. Exposed length alone mixes part length with how it seated against the stop.

4分
LU
LucyBarnes0567

Which end contacts the stop?

11分
JA
JackChan1124

And did anyone reload the same blank, or is every reading a different part?

15分
HA
HassanBrown0878

Lucy, the cut end. Jack, different parts, unmarked. We need a fresh comparison.

-6分
LE
LeoBaker0449

Use an agreed measuring reference for the exposed length too. A new set of named samples will not help if people measure from different chuck features.

14分
CH
ChenBarnes0529

We did exactly that. One person used the front face, another measured from a jaw step because it was easier to reach. Both wrote stick-out. Lovely graph, meaningless comparison.

1分
LU
LucyBarnes0567

Hassan, is the cut end's condition included in the inspection?

14分
HA
HassanBrown0878

Yes. Machining lead and inspection are defining the blank-end check and one reference. No automatic loading approved.

13分
CH
ChenBarnes0529

Leo, would you keep the old sheet at all? I left ours in the folder with a warning and somebody still reused the chart in a presentation.

2分
LE
LeoBaker0449

Keep it as historical evidence with its limitations, but withdraw the chart from decision material. Deleting the sheet would also lose why the comparison was restarted.

17分
JA
JackChan1124

A warning belongs on the chart itself, not only in the folder notes

15分
HA
HassanBrown0878

Fresh measurements show length differences between blanks and inconsistent seating of one sample. Old chart withdrawn. Both causes need review.

13分
LU
LucyBarnes0567

Did the troublesome sample have an abnormal cut end?

14分
CH
ChenBarnes0529

Jack, yes, that would have saved our presentation problem. Thanks. We labelled the data file and forgot the exported picture had a life of its own.

19分

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