Building a prototype of your innovation is a crucial link between conceiving the idea and commercializing it. A physical prototype helps you get immediate feedback from customers, designers, and financial backers as to the commercial viability of the project. It is a necessary step in the patent process. It is a pivotal point in the "GO vs. NO GO" decision, and it can save an inventor money and time as even Abraham Lincoln found out when he prototyped his patented invention. Prototyping can be difficult especially for a small company or independent inventor. Here is help. Imagine a 15,000 square-foot workshop with tools, equipment, and instruction to build and prototype your inventions. It is called TechShop, now with three locations in the U.S..