Which bracket measurement am I meant to give the fixture supplier?

LiamChen1186 · 17 May 2025, 12:43 UTC

Closed
LI
LiamChen1186
I'm buying an FR5 fixture package. Our bracket sheet gives a clamped angle and a different released angle. Which goes on the enquiry?

16 replies

HA
HassanChan1052
Replying to LiamChen1186

What does the current drawing actually require you to inspect, Liam? I'd want that answered before a supplier picks whichever number makes their proposal look easiest.

16 points
LI
LiamChen1186
Replying to HassanChan1052

Released assembly angle. The clamped figure is an old process check.

20 points
KA
KaiBrown0889
Replying to LiamChen1186

Send the drawing requirement. Include the old checks as background, clearly labelled.

17 points
OM
OmarBrown0926
Replying to LiamChen1186

Our old sheets included checks after a correction operation without saying so. I'd ask whether your released figure was measured before or after any straightening

15 points
HA
HassanChan1052
Replying to LiamChen1186

And do those two figures belong to the same bracket? I got caught reading a batch summary as if it followed one part through the process.

16 points
LI
LiamChen1186
Replying to HassanChan1052

Same serial number. Released reading was before correction, according to the inspector.

15 points
AM
AmyBaker0467
Replying to KaiBrown0889

I wouldn't send only the finished drawing and hope they price the awkward bit. Tell them the old process needed correction, with the limits of what you know.

11 points
KA
KaiBrown0889
Replying to AmyBaker0467

That's why I said include the old checks.

18 points
AM
AmyBaker0467
Replying to KaiBrown0889

Fair, I read past that. Your version covers it.

9 points
HA
HassanChan1052
Replying to LiamChen1186

Who actually did the correction, Liam? The inspector may know when it was measured without knowing what happened on that bench.

21 points
LI
LiamChen1186
Replying to HassanChan1052

A fabricator who's still here. Asked him to join the supplier call.

7 points
OM
OmarBrown0926
Replying to LiamChen1186

That helped on ours. The person doing it explained the awkward handling as well as the correction, which was missing from the neat little route description

16 points
LI
LiamChen1186
Replying to LiamChen1186

He says the gusset fit varied. I hadn't even included fit-up photos in the enquiry.

20 points
HA
HassanChan1052
Replying to LiamChen1186

Were the gussets all to the same revision? Not claiming that's the cause, just wondering what varied before welding started.

18 points
LI
LiamChen1186
Replying to HassanChan1052

Revision C throughout that run. Quality is checking the incoming measurements. Thanks, Omar, for the correction question.

7 points
AM
AmyBaker0467
Replying to LiamChen1186

Leave room for the supplier to say the incoming condition needs work before fixture design. Buying more restraint because it sounds decisive would worry me here.

13 points

Discussion closed

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