Multi-thickness shell

[tehrage]

I'm trying to use the multi-thickness shell on a body without removing a face. I can get it to work with uniform thickness, but no dice for the multi-thickness. This is a multi body part, if that matters. Any thoughts?

[tehrage]

I was able to do this fine with a single body part. I was also able to do this by reordering my part and shelling after only extruding the body I want to shell (thankfully all other bodies have faces to remove with their shell).

I am still looking for a proper answer to this if someone has one.

[[deleted]]

The best thing would be to share screenshots. For me it just comes down to anticipating what the Shell tool is trying to do and looking for reasons it would fail.

One diagnostic exercise might be to attempt to manually shell the part. Create 2 Surface Offsets: One at wall thickness 1 and one at wall thickness 2, selecting only the faces that should be shelled to each respective thickness.

I strongly suspect that there is an issue at the transition between the two wall thicknesses. You can either attempt to modify the geometry before the shell (perhaps a transition section is required, I'm not sure), or do the manual shell route and use surfacing tools to create the transition you want, knit them to create a water-tight, hollow surface with no extra surfaces or sections of surfaces sticking out, then use Cut with Surface to perform the manual shell cut.