Hi all

In Lost wax process, you create a ceramic mold around your wax model, then you melt the wax, and you have an empty mold, ready to hold your liquid alloy.

Here's my problem:

from a 3d imported part( step 203) i have to build a ceramic mold to do some simulation.

the method i use is to first make a zero offset of every surface of my 3d part, then secondly to delet the body and keep the skeen, and finaly to thiken it.

Every things go right until the last step.

when i come to thikening, i get to see the preview, but when i click on "ok" every thing crashes with this meaning full message :"unable to thikecken the surface"