So, I have an invention. I wanted to get a prototype made from my sketches and got a quote of $250 to have a one 3D printed. I thought that was pretty good and I was all set to commission the work. Then I got talking to a friend who is a designer and mentioned the prototype and the cost. He said he’d just bought a 3D printer for $300. Well that was enough to send me off in a totally different direction.