Care to indulge on your solution so other newbies can learn? To many people answer solved to their own problems without a giving a relative answer. This is the main purpose of forums like this! Yes, thanks for pointng that out, I shall do so from now. I widened the spark gap across the spark plug f...

jackssmirkingrevenge wrote:An actual spark plug is probably not a good idea, try a 1/4" or so spark gap.

Problem solved, it now ignites almost every time!

Thanks again

jackssmirkingrevenge wrote:An actual spark plug is probably not a good idea, try a 1/4" or so spark gap.

Thanks. Will try it

jackssmirkingrevenge wrote:

Quantumbit wrote:I've tried both butane and propane, in different mixtures (10-30%)

Far too much mate.

[youtube][/youtube]

*Facepalm*

Sorry I meant 10-30ml XD
I have edited it now

Hi So... This is my third combustion cannon, because the first one wasn't very powerful, and the second one was made of too thin metal, so it became buckled, this one has a thicker metal combustion chamber and (I hope) it should be solid enough. However, I seem to have a lot of problems in getting t...