4-Bit BCD

Build image: 
In-game name (NO VISITORS! Must be LEARNER rank or higher!): 
PeterC10
Builder name(s) and current ranks: 
PeterC10 Learner
Creation location: 
-101 90 -469
Machine Features: 

The machine features a binary system from 1-8 including both addition and subtraction, it also has 4 adders and 4 XOR gates, and I used a-b logic which the a and b are labeled with levers underneath.

How To Use: 

1. Flick the lever with addition and subtraction written on both sides and choose your operation.
2. Flick the levers that suit your fancy then it will add/subtract those levers.
3. Walk to the back of the contraption then add the lit torches numbers together then you will have your answer.

Request status: 
Not approved