For a spark gap, i would go out buy 1/8'' npt tap and the drill bit required. and a NGK CR10EK spark plug just drill tap he end cap or though both the 90* and pipe. then connect your stungun to it. as for the union, you might have to grind/lathe down the lips in the union. yea somebody just told me...

I think you would have a very difficult time making an inline solution to a piston valve in that union to replace the burst disk. Have a look at Fnord, MrCrowley, and SpudBlaster15's examples in the hybrid showcase for something that will work and is much simpler to accomplish with limited tooling....

i believe what you are looking for is right here
http://www.wonderhowto.com/topic/make-a ... c-igniter/

[youtube]http://www.youtube.com/watch?v=HpPXr5dUM7Q[/youtube] hello spudfiles any advice or solutions would be greatly appreciated. Ive looked everywhere and couldnt find what i needed so i decided to post a video and see if anybody could help. The main issue is the trigger mechanism. Whats the best...