Hi guys an gals. New to shapeways community but not new to the concepts behind shape ways. I have started considering making a small detailed widget as a test project. I've been a 3D hobbiest for over 5 years now and know my way around 3D programs like Revit and 3Ds Max, however I am now interested in taking my models a step further. Originally I thought my first 3D print project was going to be a clients home renovation. However I hesitate to do so on a clients dime without fully understanding the process first. My widget model is going to be made with 3 different materials with 6 separate parts. My biggest challenge is crafting a cap that screws down. What program should I be looking at that would best make the screw cap. Autodesk Inventor? Is this the program I should be looking? Further more. Some parts in my design are akin to rubber or plastic with chrome finish or simply hard plastic. Can this be possible with shape ways? Can different color dyes be possible? I see a lot of white and a lot of chrome when I review the stock, are these our only options? What about protecting material? Copyright etc. If my device is new should I be worried about patenting it before I release it to shapeways?