multiple sparks

Post questions and info about combustion (flammable vapor) powered launchers here. This includes discussion about fuels, ratios, ignition systems and anything else relevant to launchers powered by igniting things like hairspray or propane.

Postby spuzi14 » Sat Mar 10, 2007 1:46 pm

Electrodes come in pairs, just for the record.
spuzi14
 
Posts: 1235
Joined: Tue Aug 09, 2005 1:02 pm
Location: USA
 

Postby jimmy » Sat Mar 10, 2007 2:07 pm

Are you getting a spark on any of the electrodes?

BTW, to get 3 sparks you need at least 4 electrodes, and usually there would be six.

One way to do it:
<img src="http://home.earthlink.net/~jimsluka/_images/multiple_gaps.gif">

Another way to do it:
<img src="http://home.earthlink.net/~jimsluka/_images/multigap2.gif">

You also need to keep the wires well separated since the insulation on most wire is only rated for a few hundred volts. If the wires are too close together at any point then you'll get the spark jumping between the wires instead of across the electrode gaps.

Take the gun into a dark room and dry fire it a few times to see if there are any sparks jumping where there shouldn't be.
jimmy
 
Posts: 790
Joined: Wed Jul 30, 2003 11:02 am
Location: USA
 
 
Previous

Return to Combustion Launchers

cron