Hacked Gadgets Forum

December 17, 2008

Coil Gun

at 5:48 am. Filed under Complex Hacks, Cool Gadgets, DIY Hacks, Electronic Hacks


Power Labs has put together a nice powerful Coil Gun. The principle behind most of these coil guns are the same however it looks like Sam has some nice tools that make the job a bit easier.

"The gun has been completed, and it works! I finalized the design so that I could show it on my presentation on electromagnetic accelerators -which mainly focused on the Rail Gun- for "The Daily Planet", on The Discovery Channel. It works well, with only a few bugs to sort out; mainly the coil is moving backwards with the recoil of firing and this is disconnecting it and wasting energy. Also the back EMF is sufficient to blow all the diodes on the power supply and charge up the capacitor bank in reverse to over 100 volts, so a back-emf protection circuit is a must. I expect some more high power tests and videos soon, including chronograph results and optimization. For now, enjoy this low power test video (capacitors charged to +- 1kJ)."