Hello ,
As above I developed the solid model in BobCad , saved it as an .iges file and imported into viacad . By the way I am new to via cad and I like the sharp graphics . There are areas on the model where , as I added features some of them protrude through from inside to outside .

Is there a way in viacad for me to easily remove those unwanted features ? If so , can anyone explain in simple terms a step by step way to do this .

Thanks in advance for any help ,

Ernie