I have a small CNC router, am an Engineer by trade, and would be happy to help you out. If you want to pass along what you have, I can let you know what you are up against. My e-mail is firstname.lastname@example.org. Send along .stp, .igs or native inventor files. I run SolidWorks, and can read in Inventor files (theoretically)... I've never read in a native .ipt, so maybe pass along the .igs as well, just in case. Just let me know what material you are thinking. Machine is sitting idle right now, so I should have no problem getting your project cut whenever.