our brass blank clears, the gripper hasn't been invited yet

LucaAllen0265 · 13 Sept 2025, 05:55 UTC

Closed
LU
LucaAllen0265
The FR10 sketch brings a brass blank out of the mill without drawing the gripper body or open door. I've asked for the whole loaded tool, but the supplier wants a base choice first. How do we compare positions without guessing away the awkward bits?

9 replies

NI
NinaAli0240
Replying to LucaAllen0265

You can compare provisional positions using a clearly identified tool envelope, but ask who supplied that envelope and what it includes. A base choice made with no allowance for the gripper is barely a comparison at all.

22 points
LU
LucaAllen0265
Replying to NinaAli0240

They've now offered an estimated outline for the quoted gripper and proposed fingers. No adapter in it, so I've asked for that too.

22 points
NI
NinaAli0240
Replying to LucaAllen0265

Include the blank at the proposed grip depth, not just the empty tool. Otherwise a convenient change in where the fingers hold it can make one base look better without anyone noticing why.

16 points
LU
LucaAllen0265
Replying to NinaAli0240

Grip depth added. Machine fitter has measured the open-door handle position. The layout drafter can show both candidate bases with the same provisional assembly now.

22 points
TO
TobyCarter1014
Replying to LucaAllen0265

Does the stand quote remain provisional too, or is the supplier asking you to authorise fabrication from those candidates?

23 points
LU
LucaAllen0265
Replying to TobyCarter1014

Fabrication authorisation requested. That's the bit I'm holding, Toby. We haven't even got the final tool drawing yet.

0 points
NI
NinaAli0240
Replying to LucaAllen0265

Hold it. Estimated geometry is useful for rejecting an obviously bad position, not for giving the stand maker a finished location and hoping the tool later agrees.

17 points
LU
LucaAllen0265
Replying to NinaAli0240

Supplier accepts that the study is provisional now. Thanks Nina for asking where the outline came from; the first one was just their layout drafter's box.

8 points
TO
TobyCarter1014
Replying to LucaAllen0265

Who will check the actual tool against those assumed dimensions when its drawing arrives?

12 points

Discussion closed

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