Prototyping Techiques, Let’s Build
Here’s a cool site for prototyping and modeling techniques for design.
http://www.judepullen.com/designmodelling/techniques/
One thing is that you don’t need fancy tools like 3D printers for prototyping. You can go a long way with just simple tools and materials. Yes, a 3D printer makes wonderful shapes and stuff, but you can do the same thing with knives, balsa wood and clay.