Hi we are developing a roto molded part and have drawn it in solidworks but now need to hollow out the inside at a 3mm thickness to view the cross section. I have tried using the shell tool which just comes up with numerous errors about radiuses etc. I have also tried cutting it in half and shelling then mirroring but it wont let me cut it in half and even if i dont cut it in half it wont let me shell the remaining part.
So is there a proper way to shell a plastic part to the correct thickness?
Attached is the part I am trying to shell.