User:BabylonAS/Sandbox

Dispenser Lever Cannon
This simple and powerful manual dispenser-based cannon only has 1 power source - the lever. Flip it to "powered" state to release the charge. Flip it once more to release the shell.

Also, you can add a comparator and a hopper for manual setup. But you'll want to compensate the extra tick of the comparator by adding a repeater on the other side. The darker blocks are 2 high:

Hopper A must contain at least