Ultra compact full adder V1.2
| Category | Redstone |
| Theme | Other |
| Size | Small |
| File Format | .litematic |
| Submitted by | RubenHillier |
| Posted on | August 1st, 2026 02:10 PM EST |
| Download(s) | Has been downloaded 0 time |
Options
Dimensions
Length 2 Width 5 Height 8 58 blocks Relative height to paste: 8 blocksDescription
I have built a compact 1-bit ripple full adder; the dimensions are 5 wide by 8 tall with a depth of 2. I was able to make this very small thanks to my XOR gate, which is 4x2x4 and on my Reddit.
I stacked two of my XOR gates on top of each other, and for the carry-out, I used the fact that both XOR gates already have a torch that works when both inputs are on; I simply ORed these signals together.
I have managed to place inputs A and B on the base and the carry-out on the side; the mirrored form is needed every other time. This allows the carry-in and carry-out to be on the same side.
V1.2 iterates on my last design (V1.1) by reducing the width from 6 to 5 blocks, bringing the total bounding-box volume from 96 to 80. This design also reduces the tick count on the carry input to 4 redstone ticks.
This is done in Java Edition.
Reddit, u/Aggravating_Quiet_85
Other Creations From RubenHillier
