I built my printer from parts sourced of the internet, following various incomplete wikis. I like electronics and arduino, and building the printer as a hobby project was a natural fit. There are many uses for the printer when dealing with small electronic projects, anything from project boxes, special connectors, screw terminals, etc. I use openscad to model all the parts, as I'm a programmer by day. If I were not in to electronics and general maker movement stuff, I'm not sure what I'd use the printer for, but as a maker, it's a great tool to have.

The other day one of the plastic hooks on the shower curtain broke. Instead of trying to glue it as I would have before the printer, I just printed a new one. Works great.

The printer: http://imgur.com/a/URcNC#0