Does one identified bracket repeat its seat, or rock between different contacts on successive placements?
Our angle brackets find different seats in the same FR10 nest
JoBell0679 · 17 Aug 2026, 03:30 UTC
17 replies
Record the actual bracket dimensions as well. Different seating between samples can be a contact-scheme problem, a part problem, or both. I would not assume the CAD surfaces describe every acceptable manufactured bracket exactly.
5 pointsAsk the designer to label locating, supporting and clamping contacts on the drawing. A convenient extra face can look helpful while preventing the intended datum faces from settling, but we need the actual contact observations before claiming that happened here.
20 pointsOne marked bracket repeats two seats depending on placement. A second sits consistently on a different corner. No clamp applied in that comparison.
-6 pointsKeep those pieces out of the mixed sample box until tooling has seen the difference.
6 pointsAnd don't collapse those observations into samples rock. The first suggests an unstable locating choice for one piece; the second may be a consistent difference between pieces. Same fixture, two questions, and stronger clamping could conceal either without explaining it.
13 pointsHave the measured samples been checked against the applicable part requirement before the nest is redesigned around them?
10 pointsQuality found the first bracket within its checked requirements; the second has an out-of-limit edge condition at a side contact.
19 pointsThat explains a suspect second sample. The first bracket's alternate seats still need an answer.
14 pointsYes. Hold the second sample for its part review and continue the locating study with qualified parts. Keep the rejected sample's evidence too; it may help define what the incoming check must detect rather than what the nest should accommodate.
17 pointsHas the designer explained the side contact's intended role? If it locates against an edge the drawing does not control for that purpose, simply buying better-looking samples may leave the scheme unresolved.
2 pointsDesigner found an extra side stop opposing the intended datum location on the acceptable bracket. They proposed removing that locating role, not increasing clamp force. The nonconforming sample remains separate.
10 pointsThat sounds like a specific design correction, but retain what the revised stop is meant to do, if anything. A drawing that just says remove contact can leave maintenance uncertain whether a later replacement part should touch there.
5 pointsWill the change be reflected in the spare nest details too?
10 pointsYes. Revised drawing labels that area as clearance. Tooling altered the trial nest to the approved revision; the qualified bracket now repeats the intended contacts in the bench placement check.
12 pointsKeep acceptance of the full application separate from that bench result, because the proposed FR10 presentation and inspection sequence have not been established by hand placement alone.
25 pointsRecorded as corrected locating conflict on the trial nest, plus a separate incoming-part nonconformance. Automatic presentation and measurement validation remain open. No stronger clamp ordered.
9 pointsAdd to the discussion
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