response: There are a lot of material that can be removed, assembled or molded.
original_response: I am impressed. I've always wanted to do some type of sculpting- whether carving, assembling by welding and modeling, or casting.
history: I enjoy making sculptures. It is considered a plastic art. I've being toying with designing sculptures digitally with CAD and then 3d printing them. I'm not sure what CAD is, but I do know about stereolithography. It's one of the most common file types for 3D printing. CAD is computer assisted design. I see. It is used to help the design with things like modification, creation, optimization and analysis. That's the one. I'm an engineer by trade so it is a tool with which I'm familiar.
knowledge: A wide variety of materials may be worked by removal such as carving, assembled by welding or modelling, or molded, or cast.