Desktop Siege Weapon: Fireball Cannon

Looking for a harmless way to really step up your office warfare game? Why not build a nitrocellulose desktop cannon!?

On of our favorite science DIY YouTube channels, [NightHawkInLight] shows us how he made this awesome cannon — with interchangeable cannon cartridges! It even has a bit of a steampunk feel to it.

Nitrocellulose, or flash cotton as it’s more commonly known, is used by magicians for fireball magic tricks. Similar to flash paper, it burns up very fast and leaves almost no ash or residue. Creating the fireball effect is as simple as igniting it inside a tube — expanding gases take care of launching it out quite violently.

All the action is in the 3/4″ copper tube cartridges that come complete with home-made glow-plugs made from nichrome wire harvested from a broken hairdryer. These interchangeable cartridges allow [NightHawkInLight] to load up ahead of time and fire them off in quick succession.

Continue reading “Desktop Siege Weapon: Fireball Cannon”

Shooting fireballs from your wrists – Hadouken!

[Glass Giant’s] wrist-mounted fireball launcher adds a little stage magic to his life. This method of fire production is several orders of magnitude less dangerous than other arm-attached flamethrowers or instrument-mounted torches. The module, which is strapped to the underside of his wrist, stores and lights a combination of flash cotton and flash paper. The two flammables are housed in a small aluminum tube touching a glow plug. A slider switch acts as a safety, completing the circuit from the battery, to the glow plug, terminating in a mercury switch which heats things up when held at the proper level. He’s still working out the best way to load the flash materials but as you can see in the video after the break, this is definitely worthy of the Street Fighter reference.

Continue reading “Shooting fireballs from your wrists – Hadouken!”