This is a unique coilgun being hand cranked and portable. It is driven by a hand generator (magneto) from an old telephone handset in the original box .
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An amusing incidental use for this air injector is for a ‘spud gun’ or ‘potato cannon’. Jam the end of a 15 mm copper pipe into a potato then push the plug of potato down to the pressure end and ‘fire’.
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A proof of principle railgun 1 uses a high current to force a conductor outwards. A railgun is a method of converting electrical power into kinetic energy of a metal projectile. “Continue reading” for more details. Continue reading
I have used my big capacitor bank to drive the coilgun 3kJ at higher levels.
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This coilgun 1.5kJ is shown aiming into a ballistic pendulum with a can as the target.
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Railgun 2 uses a pressurized air injector system with a fast opening 230 V 7 W solenoid operated high pressure valve (16 bar) and is connected to a 24 x 4 inch heavy PVC ‘tank’.
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