Extruded Draft Facebinders should be able to close their corners about freecad HOT 6 OPEN

Related forum topic: https://forum.freecad.org/viewtopic.php?t=87468
Part 3D offset also has an issue with a pyramidal shell.

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It's indeed the case. Faces are extruded individually. Of course this is not good, and faces should be united first then extruded as a whole.

I'm honestly not sure how to approach this, however. There are different extrusion directions, and a lot of corner cases... Is there some other tool of FreeCAD that would do a correct extrusion, that we could reuse here?

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You can use sewShape to create shells from faces. This is already done in the code, but before extruding the faces. However, extruding shells has some issues.
See: https://forum.freecad.org/viewtopic.php?t=87393

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The Part 3D offset is able to do this. Maybe we should use that instead? Like, remove the ability to extrude from the Facebinder and orient people to use that tool?

Or maybe its functionality could be used from python, but it'll need some extra bindings..

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Part 3D offset has the same issues. Internally it uses the same code as makeOffsetShape.

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https://wiki.freecad.org/Part_CompJoinFeatures worked for the particular example in the forum, but it does not seem to work with Facebinder and the example file on this issue. Trying to use Connect on the Facebinder makes it disappear.

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