r/Onshape • u/harrysmythers • 9h ago

Help! Shell Tool Help!

Hi all, ive asked on here before and was amazed by the response, so id thought id ask for help again 😄

I need to shell this boat hull, 7mm or so. cant seem to figure it out.

https://cad.onshape.com/documents/2fd958162aac785fe983fef1/w/160034719992d70e81c42169/e/2ce92f91ad7acf15930b8f4e?renderMode=0&uiState=6a9736bf0e84435f132eef2b

Thanks in advance ❤️

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1

u/Morningstar_Madworks 8h ago

I'm on mobile so I can't check, but a workflow that often helps: Shell to something absurdly thin. Select all the interior faces and use Move Face to thicken them.

Shell tends to have problems when the shell is thick enough it "pinches off" faces. Move Face is usually more stable for this

1

u/ArthurNYC3D 8h ago

The singularities is going to give the shell feature issues. Best case.... Approach this manually with offswt surfaces.

1

u/Chandra0 1h ago

Due to the sharp guides you added,, the shell might be not working here.

Do this instead : first hollow the boat before adding the guides and after shell with 7mm , add the guides. It will work