Which of these nest contacts is supposed to locate the bracket?

LucyBarnes0567 · 13 Apr 2025, 06:11 UTC

Closed
LU
LucyBarnes0567
FR5 inspection nest. Five nice contact faces in CAD; real brackets rock. How do I untangle the locating scheme?

6 replies

NA
NadiaCarter0987
Replying to LucyBarnes0567

Which surfaces are intended to set the bracket position, and which merely support it? Mark those on the drawing first. A clamp should hold a located part, not force several conflicting contacts to agree.

12 points
LU
LucyBarnes0567
Replying to NadiaCarter0987

Drawing doesn't distinguish them. That's the problem.

3 points
NA
NadiaCarter0987
Replying to LucyBarnes0567

Then ask the designer to explain each contact against the part drawing. Compare the bench samples with that scheme before changing the clamp. Their variation may show which contact is interfering with seating.

11 points
JA
JasperCarter0986
Replying to LucyBarnes0567

Has the clamp supplier actually seen a rocking sample, or have they only been told it needs holding down harder? I'm no fixture designer, but buying a bigger clamp seems a surprisingly expensive way to postpone that question.

10 points
NA
NadiaCarter0987
Replying to JasperCarter0986

A sample and the marked drawing would make a useful joint discussion. First establish how the part should sit; then decide how it should be retained.

14 points
LU
LucyBarnes0567
Replying to NadiaCarter0987

Designer is reviewing the contacts with our samples. Bigger clamp removed from the purchase list for now.

18 points

Discussion closed

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