Tutorials/Dry cannon

A dry cannon uses TNT to launch TNT (or even the user on Creative Mode). Dry cannons are simple, easy to build and effective but require lots of obsidian.

Basic Concepts
The main difference between a dry cannon and other designs is the lack of water and the use of a Wadding Block. This cannon design also has a Charge and a Shot.


 * The Charge is a large amount of TNT that propels the shot. All of these TNT blocks must be ignited simultaneously.


 * The Wadding Block can be any type of block(except obsidian, bedrock and any other blast-resistant block) and provides a buffer between the Charge and Shot. Sand, Snow, Wool and other soft blocks seem to produce the best effects.


 * The Shot is a block of TNT or the user if you are on creative mode and drop into position on time.

Cannon Design
- This design is a vertical cannon but can be turned horizontally as well.

- The cannon is built entirely of obsidian.

- Start by building a 5x5x4 rectangular prism, leaving a 3x3x2 chamber inside.

- Make a hole in the top center of the prism.

- Place one piece of obsidian on the center block at the bottom of the chamber. This is the mounting block.

- Load bottom layer of chamber with TNT. This is the Charge.

- Place the Wadding on top of the mounting block.

- Place the Shot on the Wadding.

- Provide a redstone circuit so all the Charge blocks are activated simultaneously.

- Stand back and throw the switch!