shell issuses

[moseydroop]

Hello i am having a serious issues with shelling. every time i go to shell a object, fusion freezes up so that i have to close it and start over, i also have that issue when i go to edit a shell. PLEASE help!....

[jeff_strater]

@moseydroop, please share your model here.  Remember that Shell is a very complex operation, and if the model is large and/or complex, it can take a LONG time to compute.  It could be that the operation will succeed if you let it go long enough.  But, if you share the design, we can take a look at it and tell you what to expect.

[moseydroop]

Here is the file. i am trying to shell it to .08 on the flat side.

[jeff_strater · Accepted solution]

A couple of things I noticed in this model:

first, do you really want to shell the rails/legs of this thing?  One thing you can do is split those off into a separate body, do the shell, then add them back in later.  But, in this case, I think the real problem is the geometry on the domed end.  If you turn on a curvature analysis map, you can see that the middle of that face has extremely high curvature:

This will absolutely cause shell problems.  Areas of high curvature will produce self-intersecting offset faces, which will cause the shell to fail.  Even more important, though, is that there is some bad geometry inside your model.  If you do a section view, you can see that there is a tiny hollow right at the end of that domed face:

You can repair this by going into the Patch workspace, deleting these end faces, and the stray faces, and re-creating the domed face (first creating a sketch point at the dome top), stitching it all back together:

[moseydroop]

ok thanks a lot.