MineCalc
MineCalc is a 8-bit red stone calculator I made in Minecraft. I have been making red stone calculating things in Minecraft for 5 years now. I found Mineways http://www.realtimerendering.com/erich/minecraft/public/mineways/ online and thought it would be cool to print one of my models. I wanted to print a user-friendly 17-bit calculator I already created, but it was very big in Minecraft, so I designed a more 3D printer-friendly model that was closer to the ground and smaller so I could 3D print it cheaper.