thank you for your help gentlemen.

to jimmy,

you kind of mis understood questions 1 and 3, question 1 was meat to be like if propane reaches X psi does it automatically combust like acetylne(sp?) does. and for question 3, the energy efficiency of a specific fuel measures how much heat is used in ...

i believe you may be right, but it would be a controlled and in most cases colored oxidation

I left my aluminum cannon outside on a gun table overnight and it was soaking wet from mist by the morning. It didn't rust and never will. The cannon did not explode into a violent mess of chaotic blood spilling goop. I am a scholar in wordiness.

i dont wanna be that guy but in order to protect ...

aight so i haven't kept up much as of late but i am pretty sure the hunt for a reliable semi-auto combustion launcher is still on. i have an idea that i am looking to try and build. but before i go into full build mode i have some questions regarding propane.

1. does propane self combust if it ...

well when i thought of it everybody said it wouldn't work, now here is proof that it does indeed work

http://i170.photobucket.com/albums/u261/The_Hellforger/vortexconcept.jpg

here is the start of my paintball vortex block.

the small one is a 3 in. x 3 in. x 1 in. with a 2 inch cvortex circle fed by a 1/4 inch hole (no barrel yet)

the large one is a 4 in. x 4 in. x 1.5 in. with a 3 inch vortex ...

http://i170.photobucket.com/albums/u261/The_Hellforger/vortexconcept.jpg

here is the start of my paintball vortex block.

the small one is a 3 in. x 3 in. x 1 in. with a 2 inch cvortex circle fed by a 1/4 inch hole (no barrel yet)

the large one is a 4 in. x 4 in. x 1.5 in. with a 3 inch vortex ...

yeah I'm just waiting on the cd to get here from that company and i will be able to start modeling right away. yes it will be free, you just need to give me a fairly clear description of what you want.

Does anyone know what the optimum ratio equation is for a vortex block?

eh, i haven't made any hybrids YET so he is fairly safe for now

yeah, but i can get vortex blocks made out of metal (1 point for me due to the reliability) I can get them down to extremely tight tolerances (1 point due to me for accuracy) I can make them in variable sizes and calibers (1 point due to me for variety and versatility)

Thats 3 points to me over ...

I plan on modeling just about everything i can

and if i could generate enough interest, I could get machined vortex blocks easy, hell even vortex caps made as one piece

LMAO, I can't use paint for shit!

I am pretty sweet with my cad though

hey man, it gives me something to do (I absolutely fucking love CAD) and it gets rid of a bunch of those shitty paint drawings that you hate.

I haven't seen an autocad demo but i didn't really look

Gippeto, you sir, are bad ass.

I just ordered the cd from them, lets see whats up when it gets here!!!

I am using AutoCad 2009 (I have tried inventor and such but autocad is easiest for me to use)

Alas no, I am actually in the military but I do have very easy access to CNC and such.

I was thinking of designing a 6 shot revolver style cylinder mounted on an M2 style reciever for multi-shot capability