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To give the second TNT more time to reach its target, ignite it just as the first TNT is about to explode! The first blast will push the second TNT towards its target. To use the cannon, you ignite the lower TNT first, then the second TNT right after. Only TNT and 4 blocks of obsidian are needed! You can use any other block (like cobble stone) instead, but you’ll have to quickly rebuild the cannon after each use. Ignore this section if you get the idea from the pictures below! This post shows you the basic idea and variations. This has to be the simplest possible TNT cannon you can build in the game! It’s definitely nothing fancy and has a short range, but is quick to set up for a surprise attack or some creative fun.
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