Building hardware prototypes on a shoestring budget is, well, hard. There is no one "prototype store" as, by definition a prototype is something that does not exist yet. It used to be very difficult and expensive to get hardware prototypes put together if they involve mechanical components like ours. You could make them by hand which leaves ample room for human error or invest in very costly tooling to build them by machine.
Today with advances in 3D printing and laser cutting, building a prototype is not only easier, it's much faster and cheaper. Read below for a few companies that we've enjoyed working with thus far.
2. Shapeways. Looking to 3D print something? We did and were very happy with the quality of product we got back from Shapeways. It's not the cheapest thing in the world, but that's just a reality with 3D printing, at the moment.
3. Big Blue Saw. Need a piece of plastic or metal laser-cut? We've put in a couple of orders with them and have been very happy with the results, the price is right, especially as you start buying higher quantities, and the whole process of uploading your files and getting a quote is a breeze. Also want to give a shoutout to SFlaser. We just started emailing with him to get some pieces made and his prices are great. If you are in the Bay Area, look to him for a quote and quick turnaround time.