Foundry & Furnace
Introduction Originally published: 2015 This page will show you how I built a small home foundry and furnace for melting aluminium and brass for producing some custom metal castings. This… Read more »
Bipolar Marx Generator
Introduction Originally published: 2010 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)…. Read more »
Black Powder
Introduction Originally published: 2006 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… 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. They are often used for the production… Read more »
30kV Flyback PSU
Introduction Originally published: 2003 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… Read more »
Coilgun I
Introduction This page documents my first attempt at building a single stage coilgun. The coilgun is capable of firing a small ferromagnetic projectile at high speeds. A coilgun is a… Read more »
Potato Cannon II
Introduction 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 original project page…. Read more »
Pneumatic Potato Cannon
Introduction 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 air in a… Read more »
Tennis Ball Mortar
Introduction This is a really fun launching device mainly due to the sound of the boom when fired! It doesn’t have much of a range when compared to potato cannons… Read more »
Potato Cannon I
Introduction 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 chamber to barrel… Read more »