Hi Rich, that's probably actually a bug in Shell in the current beta. For a shell with an internal void cavity and no openings set the "Library" option in the Shell command options to Library: Solids++ for right now. Or select the top face to make an opening there.

Try with the attached file. (updated Section with cutaway option almost ready).



- Michael

Updated section tool attached.

Instructions for installing a plugin here.

If you want to use a different plane than world XY / XZ / YZ , set the construction plane (View > CPlane) before running.

Looks like this:



- Michael

Simply Great !!!