I got a 3D printer on loan from a friend, it's a Prusa i3.
I have used it before by designing and taking the files to him for printing, but this allows me to quickly check and made adjustments.
So to start, I had a wall holder for an Apple Airport Extreme wifi router design that I made a few months ago, but never got to print, since I then made such a holder out of acrylic.
By accident, the acrylic holder broke a few days before I got the printer, so it was the perfect opportunity to try it. Here is a rendering of the holder:
I printed it using PLA, and got quite a nice result! Here are a few pictures.
I use Sketchup to design the models. If you want to have a go, you can find the sketchup model on the warehouse here.
LEGO Traffic Light
4 weeks ago