Trouble with shell feature at desired thickness of .172"

[Anonymous]

I am trying to use the shell feature on the attached part without success.  I have made sure i have reduced knife edges and enlarged the fillets to large enough size to ensure i do not see thinning in the sidewalls while molding.  The shell feature worked prior to adding the required 3 degree draft to seperate from tooling.  I would  appreciate any guidance.

[WHolzwarth]

Fillet127 refused shelling.

I suppressed it and placed it again at the browser's end.

2016 file attached

Walter

[JDMather]

Manage>Rebuild All returns early errors.

Sketch1 is not fully defined.

If I add what would appear should be Tangent Constraints - the geometry changes.

[mcgyvr]

Everytime I've had problems with the shell feature its because of fillets..

I've just started adding them after the shell..

[Daniel248]

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Everytime I've had problems with the shell feature its because of fillets..

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Same here.

Interestingly enough, if the original part is converted to a solid neutral format first (*.STP), and then shelled, there’s a warning that some thicknesses would deviate by approx. +/- 0.4 Thou from the desired thickness of 0.172 Inch (which in real life would happen anyway when forming such shape), but it shells OK, if accepted.

[JDMather]

It occured to me that maybe you are doing too much work (see attached Inventor file).

You might notice that I tossed your file and started over from scratch.

If this is similar to what you are really after - we can start working towards manufacturable dimensions.

[ParichatKim]

Try opening the file first. Is it the way you want it?

It is advisable to hide the chamfer section first and then use the shell command.