Two inserts fit the same bolts and both say family A

YasminBennett0702 · 9 Apr 2025, 19:03 UTC

Closed
YA
YasminBennett0702
I found two different housing nest inserts labelled family A for our planned FR10 inspection job. Both fit either way round. How do we check the installed tooling against the recipe without trusting those labels?

21 replies

BR
BrunoChen1148
Replying to YasminBennett0702

First work out why two different inserts carry the same identity. An electronic reader will read the wrong label with impressive consistency.

19 points
YA
YasminBennett0702
Replying to BrunoChen1148

One label came from the storage drawer, not the insert drawing. Stores copied it when tidying up. We've put both aside for identification.

16 points
BR
BrunoChen1148
Replying to YasminBennett0702

That explains the label, at least. Have the toolmaker identify the inserts from their geometry before anyone chooses a clever way to read them.

16 points
YA
YasminBennett0702
Replying to BrunoChen1148

Toolmaker identified the second as family B. Its relief pocket is deeper, otherwise they look very similar. We have the drawing references now.

11 points
BR
BrunoChen1148
Replying to YasminBennett0702

Now deal with orientation. Can the mounting be keyed so it won't accept the insert backwards, or are you relying on somebody noticing the relief?

23 points
SO
SofiaArcher0369
Replying to BrunoChen1148

Our backwards insert looked perfectly respectable until a housing rocked on it. I'd vote for making that mistake difficult to assemble in the first place.

12 points
BR
BrunoChen1148
Replying to SofiaArcher0369

Same vote here, subject to the toolmaker checking the locating scheme. Adding a pin wherever there's space can create a new problem while fixing the old one.

16 points
RA
RachelArcher0435
Replying to BrunoChen1148

The recipe still needs an identity match. A key that prevents rotation doesn't necessarily distinguish family A from B, and the two checks shouldn't share a misleading green tick.

21 points
BR
BrunoChen1148
Replying to RachelArcher0435

Yes. Backwards and wrong family are different mistakes. One mechanical change may solve both, but the drawing needs to show how.

18 points
VI
VictorChen1142
Replying to RachelArcher0435

How will a replacement insert get its identity? That process needs an owner as well, otherwise the correctly labelled originals will be replaced by ambiguous spares later.

8 points
YA
YasminBennett0702
Replying to VictorChen1142

Stores suggested printing the label from the recipe screen. I can see that proving what we selected rather than what's fitted. No replacement process agreed yet.

8 points
VI
VictorChen1142
Replying to YasminBennett0702

Yes, that would copy the selection rather than verify the tooling. Use the controlled insert identity during receipt and replacement, with someone responsible for matching it to the actual item.

6 points
YA
YasminBennett0702
Replying to VictorChen1142

I've taken that back to stores. Toolmaker is also reviewing a keyed mounting; recipe selection and insert identity remain separate requirements in the software notes.

6 points
SO
SofiaArcher0369
Replying to YasminBennett0702

Any news on the keying? Curious whether the two families can share the base without sharing the same opportunity for a very annoying mistake.

16 points
YA
YasminBennett0702
Replying to SofiaArcher0369

Proposed keying prevents reversal, but both families still fit. That's intentional for changeover. We need the identity check to catch family mismatches.

24 points
BR
BrunoChen1148
Replying to YasminBennett0702

Fine, as long as nobody sells the key as doing more than that. What happens if the identity can't be read?

20 points
RA
RachelArcher0435
Replying to BrunoChen1148

Keep the job unverified and explain the missing read. Also clear any previous verification when tooling is removed; yesterday's successful read isn't evidence about today's insert.

10 points
BR
BrunoChen1148
Replying to RachelArcher0435

And give the operator a useful fault message. 'Invalid' is short, but it leaves everyone guessing whether to call stores, maintenance or the programmer.

18 points
YA
YasminBennett0702
Replying to BrunoChen1148

Draft messages distinguish no identity from wrong family. Removal cancels verification. We'll test both with the controls person once the mounting revision is ready.

8 points
YA
YasminBennett0702
Replying to YasminBennett0702

Mounting mock-up passed the toolmaker's orientation check. Software still needs the removal and mismatch trials. Thanks for helping keep the drawer label out of the acceptance logic.

20 points

Discussion closed

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