Which FR5 nest contacts make our support brackets seat differently?

GabrielArcher0366 · 21 Jun 2026, 20:40 UTC

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GA
GabrielArcher0366
Our milled brackets seat differently in the proposed FR5 inspection nest. Several contacts. Would stronger clamping hide a locating conflict?

9 replies

LI
LinBell0618
Replying to GabrielArcher0366

It could force a part against competing contacts without resolving the locating scheme. Ask the fixture designer to map each contact to the intended datums and compare identified samples without using clamp force to explain away the difference.

13 points
GA
GabrielArcher0366
Replying to LinBell0618

The drawing labels support pads, but the side contacts are not assigned a locating purpose.

17 points
OW
OwenChen1182
Replying to GabrielArcher0366

Does one bracket repeat its own seat? Or can the same bracket choose different contacts when you place it again? I'd separate that from differences between brackets before blaming all the extra contacts

16 points
VI
VictorCarter0968
Replying to GabrielArcher0366

Which surfaces define the inspection requirement on the part drawing? The fixture labels alone do not establish the datum scheme that the measurement needs.

5 points
CA
CarlaChan1097
Replying to GabrielArcher0366

We found alternate corner contact and a rough-edge side contact in another nest. Yours may be different. What contact or gap have you actually observed on these samples?

6 points
GA
GabrielArcher0366
Replying to CarlaChan1097

Carla, a gap at one pad on two samples. Owen, repeated placement of one sample is unrecorded.

25 points
LI
LinBell0618
Replying to GabrielArcher0366

That is useful but incomplete. Retain the sample identities and gap locations, then let the designer and measurement owner relate them to the part datums. Do not convert a visible gap into proof that every contact is unnecessary.

4 points
OW
OwenChen1182
Replying to LinBell0618

Lin, yes. I wouldn't start removing supports from that description either. Gabriel can ask for a static repeat-seating comparison before a redesigned clamp becomes the next purchase

23 points
VI
VictorCarter0968
Replying to VictorCarter0968

Has the measurement owner identified the drawing datums yet? That remains the missing link between seating observations and whether this nest can support the intended inspection.

5 points

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