semi-automatic combustion cannon

[Tom]

This is my first project in combustion cannons, the goal is to make a semi-automatic combustion cannon. The reloading of the ammo wil be with a gravity magazine, the feul injection will be injected thro the barrel with a piston. The schematics wil come... SOON .
Greetings Tom

[singularity]

did you think about how your going to vent the chamber after every shot?

[Tom]

Yes, the feul mixture will consist 3/4 air and 1/4 lichter fuel.

[Hubb]

Venting in the chamber means replacing the used air with fresh air so the next fuel / air mixture will ignite. Maybe you should make a normal combustion first to get the idea of how they work (don't forget to search the forum to get the best ideas).

[DYI]

What kind of fuel are you talking about? With propane you need about 4% fuel and 96% air. With butane, it should be closer to 3%, and MAPP should be close to 5%.

[Tom]

It's a mixture of butane and propane.

[Hubb]

Why are you mixing the propane with the butane?

[hi]

you can buy canisters that have propane/butane mix at camping stores.

[SpudBlaster15]

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[thespeedycicada]

this might be too complicated for a first combustion try an advanced first if you want but not develop some totally new (i think) idea.

[DYI]

There have been semi-auto combustions before (Revolver X, for example), but they are immensely complex, due to issues with venting, rapid fuel injection, and overheating which must be overcome.

[Novacastrian]

Be sure to post those schematics, you may surprise us all

[Redcoat]

yeah, i'd like to see the schematics before you give up.Also why not a fa to vent the chamber? but you'd have to have a trigger for that as well. .

Happy Spuddin'

[keep_it_real]

you may surprise us all

but they are immensely complex, due to issues with venting, rapid fuel injection, and overheating which must be overcome.

this might be too complicated for a first combustion try an advanced first

yeah, i'd like to see the schematics before you give up

Jesus, guys... way to be optimistic.

[origin unknown]

Go manully rapid fire with a gatling style combustion. It is way more simple, just make 6-8 normal combustion cannons onto a revolving thing controlled by a crank which rotates the barrels and put the spark contacts on the back of all the cannons. Make it so that the individual cannon's spark contacts line up with a main back one on the frame when you rotate the barrels with the crank. Have the contact on the frame powered by a constant electrical ignition source such as a stun gun.