![]() ![]() Properties of TNTĪs I'm sure you know, TNT is dangerous stuff. The destructive properties of an activated TNT block depends on the blocks it is activated near. The blast resistance of each block type will determine the TNT's destructive force. Air has the weakest blast resistance and obsidian the strongest. When activated near water, or any other liquid, the effectiveness of TNT's explosion will be limited greatly as well, most often negating any explosiveness. Later on, you will notice that our cannon uses a base of water beneath the TNT charge and this is why. Without the water base, our cannon would explode and that's not the effect we're looking for. The main principle with which our cannon operates is that of the "TNT charge". What is TNT charge? Well, when two or more TNT blocks are set next to a second set of TNT blocks the set that is first activated enters a charged state and propels the second set as it explodes. Typically this will occur in random, unpredictable directions. A fun way to see this effect is by simply placing a bunch of TNT down and observing how it behaves when activated. You will see that while some blocks simply explode, others are sent flying wildly. This is exactly the effect we're looking for in our cannon, only it is a charged explosion that is directed in a specific direction without the randomness of a grouped explosion. Start by placing cobblestone blocks in a rectangular shape, seven blocks long and three blocks wide.Įmpty a water bucket on one end of the inside of the cobblestone box.īuilding a Simple TNT Cannonįor our purposes, we'll use the simplest cannon build, so that you can see the principles at work, replicate them, and make variations. The direction this water flows is the direction we will be aiming our TNT. In the case of the picture below, the water is flowing from right to left and as such, our TNT will be shooting right to left.įinally, place two cobblestone blocks on the safe end of your rectangle. One of these blocks will be on top of the water source-it must not block it. Now that your frame is complete, place a button or lever on the far side of the cannon as seen below. Run redstone wire down one side of the canon, from the safe side to one block short of the business end. Now place a redstone torch on the opposite side of the redstone side of your canon, followed by four redstone repeaters. ![]()
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