Contra
thingiverse
My 3D Model of John Rutters excellent Design: http://www.traplet.com.au/copy-of-contra https://www.youtube.com/watch?v=cIbyDqJY67I&t=73s
Download Model from thingiverse
With this file you will be able to print Contra 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 Contra.