Hey people. I've been fighting with the model for a while. Using Inventor 2013. Created this part everything is dandy. Had to make some changes and now the shell won't work and the changes are very subtle. Go back to the original part and it shells. I've been using Inventor for a long time since Mech Desktop so I do know what I'm doing. But I just cant see a reason its not shelling. I hate when it tells you to make the thickness smaller... well I cant... that's the thickness. I've attached both of them. The one without rev is the original and what it is suppose to look like. The rev 5 is what needed to change and it won't shell. Any thoughts? I need to make this geometry work. Thanks!
Check the "merge tangent faces" in your loft feature. Then uncheck the "automatic face chain" in the shell. The loft geometry will change ever so slightly, but (in 2021) it looks like this after the shell:
Is that what you're looking for, to start with?
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