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Authortoysrukid
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This is the Mk3 TNT cannon, a more compact version of the 18-shot model. It fires one TNT block at a time.

Spamming the firing mechanism can cause the TNT to arc higher, potentially reaching the top of high walls.

Materials Required

10 block types · 68 blocks · 11×5×11

Redstone Wire32
Dispenser14
Stone Bricks8
Repeater4
Ladder2
Obsidian2
Smooth Stone Slab2
Water2
Lever1
Stone Button1

Before You Build

This build uses 68 blocks across 10 block types – about 2 stacks in total, which fits inside a single shulker box. It occupies 11×11 blocks of ground and stands 5 blocks tall.

What to bring first

Redstone Wire – 32
Dispenser – 14
Stone Bricks – 8
Repeater – 4
Ladder – 2

Survival or creative?

Every block in this build can be obtained in survival, so it can be built by hand without creative mode or commands.

Moving parts

It includes Dispenser, Lever, Redstone Wire, Repeater, so check the mechanism still works after pasting – redstone state and item-container contents do not always survive a paste.

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