X-12B
thingiverse
It's a rocket car. Use your imagination xD Or, if you don't want to use your imagination you can also check out this video: http://www.youtube.com/watch?v=tcA4KHZOLG4 The quality is not great (and no sound, sorry about that). The one on that video is the X-12 (an earlier version) but the only difference is the nozzle. This one was our first succesful launch with the same fuel the X-12B uses: http://www.youtube.com/watch?v=TIAwVWGTbzU Not very impressive, but it was a lot of fun xD Instructions The addition of wheels to this design may be a good idea (the one on the video actually has wheels). A high density and infill solidity may also be useful...
With this file you will be able to print X-12B with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on X-12B.