Table of Contents
Who this is for: Minecraft players wanting to build advanced redstone contraptions and explosive devices for combat or entertainment.
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Basic TNT Launcher Design
Building a TNT launcher in Minecraft requires water, dispensers, redstone, and plenty of TNT blocks. The most effective design uses a water-filled chamber to propel TNT blocks forward while protecting your launcher from explosion damage.
Materials You’ll Need
- 8-12 dispensers
- 20-30 TNT blocks
- Water buckets (at least 3)
- Redstone dust and repeaters
- Building blocks (obsidian works best)
- Pressure plates or buttons
Step-by-Step Construction
Start by creating a 3-block wide, 2-block tall tunnel using obsidian or other blast-resistant materials. This forms your cannon barrel. At the back end, place dispensers facing forward – these will hold your TNT ammunition.
Fill the barrel with water source blocks, leaving the front opening clear. The water prevents TNT from exploding prematurely and creates the propulsion force you need.
Behind the dispensers, build your redstone circuit. Connect redstone dust from your dispensers to a central activation point using repeaters to control timing. A simple button or pressure plate works perfectly as your trigger mechanism.
Loading and Firing
Load TNT blocks into each dispenser, then fill any remaining dispenser slots with more TNT for rapid-fire capability. When you activate your redstone trigger, dispensers will release TNT into the water-filled barrel.
The water current pushes TNT blocks forward and out of the launcher. Once TNT exits the water, it begins its 4-second fuse countdown before exploding at your target location.
Advanced Modifications
For increased range, extend your barrel length and add more water source blocks. You can also create multi-barrel designs by building several launchers side-by-side with synchronized redstone timing.
Consider adding a clock circuit for automatic firing or variable delay systems for different projectile speeds. Some builders incorporate hoppers for automatic TNT reloading between shots.
Remember to test your launcher in a safe area first, as TNT explosions can damage nearby structures and terrain. Once you’ve mastered basic TNT launcher mechanics, you’ll discover endless creative possibilities for both defensive fortifications and entertaining contraptions in your Minecraft adventures.
TL;DR
Build a TNT launcher using dispensers, water-filled barrels, and redstone circuits. Water propels TNT blocks forward while preventing premature explosions.
