Good Morning, all
I have a problem when differencing one solid from another. I have to create a shell for foundry purposes. I've done this at least 20 times without problems, but, this one causes me an unexplained problem. I have a basic shape (Shape1) and I create a solid larger (Shape2) than the basic shape by size and thickness. Before the difference command both shapes are solids. I slide Shape1 into Shape2 leaving a border of 1/32". I execute the difference command and all appears to work, but, when I remove the Shape1 from Shape2, the difference is not shown in Shape2, but now Shape2 indicates a "surface" and is no longer a solid. I am baffled. I'm running version 2 of MOI. If confused about shells, it would be the equivalent of pushing shape into wet cement and removing the shape thus leaving the cement with a copy of the shape pushed in.