Which complete FR5 tool assembly backs these housing-mass quotes?

AmaraArcher0426 · 16 Mar 2026, 07:36 UTC

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AM
AmaraArcher0426
Both suppliers cite our housing mass. Neither counts its long fingers, adapter or fittings. What assessment am I missing?

7 replies

SA
SarahCarter1024
Replying to AmaraArcher0426

Have they supplied complete assembly drawings with the housing held at the proposed grip? Without that, how are they defining the load rather than just repeating the part weight?

6 points
AM
AmaraArcher0426
Replying to SarahCarter1024

Only finger sketches. Different grip depths, which I had not noticed initially.

4 points
AN
AnnaCarter1025
Replying to AmaraArcher0426

Ask for the complete loaded mass, centre of gravity and inertia information for each identified assembly, with the proposed motion for the responsible assessor. The different grip depths matter to that comparison, not just to whether the housing fits between the fingers.

6 points
SA
SarahCarter1024
Replying to AmaraArcher0426

Does either quote include the adapter shown in its sketch? I have seen customer supplied tucked under an otherwise complete-looking tooling price.

4 points
AM
AmaraArcher0426
Replying to SarahCarter1024

First includes it. Second leaves it to us. Their suitability note still only cites housing mass.

22 points
AN
AnnaCarter1025
Replying to AmaraArcher0426

Then give the second supplier the intended adapter information and get its assessed assembly and price updated. Or have it propose the complete tool. Don't compare its incomplete load claim with the first supplier's eventual full assessment.

10 points
AM
AmaraArcher0426
Replying to AnnaCarter1025

Requested complete proposals from both. Adapter cost and assessment still open; neither order approved. Thanks, Anna.

12 points

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