User:BabylonAS/My TNT Cannons/Dispenser Lever Cannon

This simple but 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.

Pros: Very simple and powerful.

Cons: Expensive dispensers, slightly tricky to efficiently use.

The technical name for it is 216.0MM3 dispenser:
 * 2 (overlapping) rows of TNT
 * 1 shell
 * 6 charge TNT total, 2 rows of 3
 * .0 - no condensation.
 * M - manual cannon.
 * M3 - slab mounting block.
 * Special:
 * dispenser - dispenser-based cannon.

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:

The measure of hopper A is subtracted from 15. The output will be 0-3, depending on the amount of items in hopper A.

Hopper A must contain at most 3 full stacks (or non-stackable items) and 60 items for the adjustable row to work on full strength. Each additional 23rd item will turn off a dispenser sequentially, beginning from the front. See also Redstone_Comparator for the exact values.