Group Combine output group question

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i creat a box,then creat a new group by ID 0-4 face.
then i use group combine node to merge the extrude front/side.
then i use extrude again extrude merge group. it seem some both face inside box,
how to fix this?

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test.hip (96.8 KB)
test.png (171.8 KB)

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Joined: July 2005
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You are extruding by individual components. So each face is separately extruded and generates an internal face between them.

Extrude by connected components instead.

Use the Split Group to select where to dice up the connected components to get the four separate extrusions.
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