How to Make a Minecraft TNT Cannon

About: I make weapons, and other things...

As my second minecraft instructable I will be showing you how to make an extremely powerful TNT cannon, which can fire a single TNT ammunition over a distance of 300m.

To make this you will need: redstone dust, any kind of solid block (I used granite), repeaters, a button, a bucket of water, any kind of half slab and TNT.

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Step 1: The Base

Get started with an 8 by 3 by 1 base. Now make a ring on top of the base leaving out the end block.

Step 2:

Now make a one block wide strip on the left side, place a half slab at the open end and a bucket of water at the closed off end as shown.

Step 3: Covering the Water

Cover the water by placing and breaking the blocks as shown.

Step 4: The Redstone

Place a button on the back of the block, then place redstone dust as in pic 3.

Step 5: More Redstone

Place 6 repeaters on the right side of the cannon with two dust at the end. On the left side, place redstone dust all the way down the side, missing out the end block.

Step 6: Firing

To load and fire it, just lay down TNT in the water and on the half slab. Now press the button and stand back.

I found that the tnt that was being fired, was being lit too quickly, so I set all the repeaters to three ticks-shown in pic 5.

Hope you all enjoyed this build as there will be many more to come:)

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    5 Discussions


    4 years ago on Introduction

    also could be done allot cheaper, and instead on brick on one side set up dispensers with TNT in them to reduce reload time.

    2 replies

    Reply 4 years ago on Introduction

    I wouldnt call it cheaper but that would certainly make it faster, thanks for the suggestion.


    Reply 4 years ago on Introduction

    Don't Mention it just trying to show you that your design could be improved.