So the answer is no. you’re working on the honor system. Hypothetically speaking lets say your ingenious design a new and novel way of dispensing diabetes medication through your rectum has hit the market and sells millions, your telling me the hub you had sent the cad file will not then modify and or just print and sell his own because you can guarantee me all your hubs are honorable, yikes… this is not a safe website to build a business, in todays economy you need to CYA (cover your ass) and i’m sorry but i don’t feel my ass is covered at this time with 3d hubs. We hope we can do something in the future your web design is killer and i enjoy the easy of use. But from a business perspective we can move forward with out more security. thanks for your quick response and explanation.