Bipolar Marx Generator
Introduction A Marx Generator is a type of voltage multiplier circuit constructed using capacitors, resistors and spark gaps. They produce high voltage, high current DC pulses (non-continuous). They consist of… Read more »
Black Powder
Introduction Black powder or Gunpowder is an explosive pyrotechnic composition comprising of charcoal (C), sulphur (S) and potassium nitrate (KNO3, also known as saltpetre). Black powder is classed as a… Read more »
Ball Mill
Introduction Originally published: 2006 This project will show you how I built a ball mill for the process of making finely ground powders. Predominantly for the production of black powder… Read more »
30kV Flyback PSU
Introduction This high voltage PSU utilises a high voltage flyback transformer (also known as a Line Output Transformer – LOPT) salvaged from an old black and white TV. It is… Read more »
Coilgun I
Introduction Originally published: 2007 This page documents the build of my first coil gun. It is a 704 joule coilgun, capable of firing a small projectiles at high speeds. A… Read more »
Tennis Ball Mortar
Introduction Originally published: 2004 This is a brilliant launching device – simply due to the sound of the boom when fired! It doesn’t have much of a range when compared… Read more »
Mini Cannon
Introduction Originally published: 2003 I had some parts lying around my bench and I had an idea for a mini combustion cannon. I had a plastic tube that fit plastic… Read more »
Pneumatic Potato Cannon
Introduction Originally published: 2002 After building my first combustion cannon I wanted to try a cannon that was slightly different. The pneumatic cannon works on the principal of using compressed… Read more »
Potato Cannon II
Introduction Originally published: 2004 This was my second combustion potato cannon. It was a significant improvement in efficiency and size over the first cannon. The following content is from the… Read more »
Potato Cannon I
Introduction Originally published: 2001 This was my first potato cannon. It used basic solvent welded plastic pipe fittings from the local hardware store and I didn’t really consider the combustion… Read more »