Thanks for answering. I am really into still art more than animation, with most of my time now working on how to learn how to model somewhat accurately. I haven't even begun to try to work on texturing or scene composition. The piston thing was just something I thought would be cool to know later on. I don't work very fast, and that is a concern, but I am intrigued by the possibility that I might be able to earn money doing something I enjoy, plus the fact that I have a low paying job that I'm not crazy about:). I have a couple of finished items and I may post them for comment.