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Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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Unread postAuthor: pyrogeek » Mon Aug 28, 2006 11:43 pm

Since MAPP (methyl acetylene propadeine / propane) burns hotter, shouldn't the air get hotter making a larger volume of exhaust gas to expell the spud?

Also, someone mentioned using oxygen. I thought that was a big no-no. Oh well, at least use Sch 80, and prefferablly also a remote ignitor.
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Unread postAuthor: singularity » Tue Aug 29, 2006 1:42 am

and prefferablly also a remote ignitor.
or a long wire would work fine and be alot less money

*sweet i got a red star now*
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be sure to check out my <a href="http://www.spudfiles.com/forums/ak-style-airsoft-vortex-gun-t10959.html">AK Styled Vortex Gun</a> and my <a href="http://www.spudfiles.com/forums/at-4-t9627.html">AT-4 Rocket</a>

upcoming projects... finalized clip fed BBMG and ball point pen sniper
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Unread postAuthor: Jolly Roger » Tue Aug 29, 2006 9:16 am

you cheat winner, thats just like posting a post like mine right now just to earn ranks... Really sad man, really sad...
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Unread postAuthor: schmanman » Tue Aug 29, 2006 9:36 am

Jolly Roger, once again, wtf
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Unread postAuthor: matthouse357 » Tue Aug 29, 2006 12:09 pm

remote ignitor sounds cool but would would i use, you think a car battery from a civic would work?
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Unread postAuthor: Pete Zaria » Tue Aug 29, 2006 2:19 pm

Matthouse, how the hell does a Civic battery have anything to do with a remote ignitor system? If you used that battery with an ignition coil, and a switch with a 50' cord, then yes...

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Unread postAuthor: matthouse357 » Tue Aug 29, 2006 7:32 pm

yea yea thats what i was thinking
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Unread postAuthor: matthouse357 » Tue Aug 29, 2006 7:32 pm

whats another remote ignition system setup?
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Unread postAuthor: noname » Tue Aug 29, 2006 7:38 pm

Poke the BBQ igniter button with a stick. :lol:
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Unread postAuthor: Jolly Roger » Thu Aug 31, 2006 12:17 am

A really long stick... :P :shock: Nah I used to make remote ignitors for all sorts a stuff out of small rc cars. All you need is a cheap rc car or whatever and those model rocket ignitors/fuses, they a wires in the shape of a v with the apex covered in flammable stuff, they just act like an electrical fuse. Just remove the electric motor from the car and connect both wire ends to the fuse or whatever their called. Push the throttle foward on the remote and it should light up. Its really cheap and fairly reliable.
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Unread postAuthor: MrCrowley » Thu Aug 31, 2006 1:30 am

schmanman wrote:Jolly Roger, once again, wtf

was that just to get your ranks up as well? :roll: jk

you could use a cell phone to set off the spark via txt message
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Unread postAuthor: Pete Zaria » Thu Aug 31, 2006 1:48 am

Using a camera flash and ignition coil, or a stungun, would easily allow you to run a 50' or longer cable (use speakerwire, the trigger circut is very low voltage and speaker wire is cheap) to your detonator button.

McCrowley, I know it's all in good fun, but I don't think talking about SMS detonator circuts is a very good idea.

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Unread postAuthor: MrCrowley » Thu Aug 31, 2006 2:26 am

why not, someone has submited a picture or something on how to make one with pics and all on this site....umm here it is:
http://www.spudfiles.com/forums/viewtopic.php?t=3218&

but i catch your drift and all i watched season 5 of 24 with the airport things detonated by cellphones....
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Unread postAuthor: spudmonkey » Thu Aug 31, 2006 6:25 pm

pyrogeek wrote:Also, someone mentioned using oxygen. I thought that was a big no-no. Oh well, at least use Sch 80, and prefferablly also a remote ignitor.

no i didnt use a remote igniter, even if it is a big no-no i dont care
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Unread postAuthor: schmanman » Thu Aug 31, 2006 6:51 pm

mrcrowley said
was that just to get your ranks up as well?


no, I never post just to get my ranks up. and like you have any room to speak. you joined three months after me, and you have around 100 posts more than me already.
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