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Keith’s Propane Injected ECL 1400

Built a combustion cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: MrCrowley » Tue Sep 26, 2006 4:36 pm

oh yeah i was going to put in my last post "follow the meter pipe" :oops:
i think theres only 1 picture where you can see that elbow but its still clearly visible
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Unread postAuthor: Mr.Taterhead » Tue Sep 26, 2006 8:14 pm

Thanks sv490665, that was my question and thank you for answering.
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Unread postAuthor: sv490665 » Tue Oct 17, 2006 4:47 pm

ProfessorAmadeus wrote:I like the handle alot. It is built and looks very nice. I too no longer make combustion because of the weak power but this one looks great.


Ya the handle took me about 4 hours to make :( i could have used a couple of nicer tools to cut that time in half but i don't have them. Anyways, a good way to get started on making one of these custom handles is to trace around the handle on an airsoft or bb gun onto the plywood then cut that peice out, and then use that cut peice as a trace guide for the next 2 times that you cut handle peices. My handle is 3 layers of plywood. the left and righ layers are bolt-on removeable faceplates, then the middle layer is the part that gaps the two faceplates so that the bbq ignitor can be placed, as well as give you somewhere to put a trigger frame. there are more steps than that but if anyone wants more specific plans on building a nice handle i can give them to you, just let me know.
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Unread postAuthor: Killjoy » Tue Dec 05, 2006 11:07 pm

nice gun. love the hinge set up and how simple and smooth looking evrything is. U did a great job on the handle by the way.
One question, howed you get the touch tip unscrewed from the regulator thing that attaches to the tank? and what size are the threads?
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Unread postAuthor: frankrede » Wed Dec 06, 2006 1:12 am

you have to modify a propane torch valve,burntlatke.com
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Unread postAuthor: dannystruff » Wed Dec 06, 2006 1:45 am

nice gun, i especially like the rear grip it gives it a custom feel.
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Unread postAuthor: Killjoy » Fri Dec 08, 2006 12:52 am

wow...why didn't i think of that mehtod. thanks for the website man.
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Unread postAuthor: roughboy » Thu Dec 14, 2006 12:28 am

Hey man this gun is great. I wouldn't want to be a target of the gun
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Unread postAuthor: roughboy » Thu Dec 14, 2006 12:30 am

Hey man this gun is great. I wouldn't want to be a target of the gun
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Unread postAuthor: joannaardway » Thu Dec 14, 2006 5:28 am

Oh dear. The forum's got an echo.... echo.... echo...

On a serious note - very nice craftsmanship. Kudos to you.
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...I'm sorry, but that made my year.
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Unread postAuthor: Billy Bob » Sat Dec 16, 2006 1:03 pm

Looks great :D good work

But I have one question I wanted to ask that many times but I thought may be you find the solution anytime. But I dont :wink:
Now I ask.
Where do you get the mixture in the chamber. I dont mean the question of site one of this thread I mean how and where do you mixe the propan with the air ?
I see no mixture part ? And why do you have 2 ball valvues ? because of safety ?

Please dont tell me that I am stupid but your US standard seems to be very differently.
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Unread postAuthor: sv490665 » Thu Jan 18, 2007 7:36 pm

Billy Bob wrote:Looks great :D good work

But I have one question I wanted to ask that many times but I thought may be you find the solution anytime. But I dont :wink:
Now I ask.
Where do you get the mixture in the chamber. I dont mean the question of site one of this thread I mean how and where do you mixe the propan with the air ?
I see no mixture part ? And why do you have 2 ball valvues ? because of safety ?

Please dont tell me that I am stupid but your US standard seems to be very differently.


The mixture happens inside the chamber. I won't say you're "stupid", but definitely do some more homework if you plan on building a propane gun. I a designated volume of propane inbetween the two ball valves, the gauge in the middle tells me what psi i'm at. I release the second one to let the propane into the chamber then close it off, for safety i guess... But the propane mixes naturally with the oxygen (just fresh air) in the chamber and then I also have the cpu fan inside to optimize the mix. all of this is done with the chamber cap CLOSED. then all i gotta do is click the trigger and BOOOOM!! Did that help explain your question?
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Unread postAuthor: spudthug » Tue Feb 27, 2007 2:45 pm

i know this is an old thread but nice gun its awesome...
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Unread postAuthor: nuclearspud » Sat Jun 16, 2007 7:39 pm

Yeah, i know this is a really old thread, but what kind of fitting did you use on the propane torch valve? I am makin a propane injected cannon but i can't figure it out.
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Unread postAuthor: hi » Sat Jun 16, 2007 7:48 pm

nuclearspud wrote:Yeah, i know this is a really old thread, but what kind of fitting did you use on the propane torch valve? I am makin a propane injected cannon but i can't figure it out.


it is extremely complex. i really dent know how to explain it other than:

you take a piece of hose and put a hose clamp around it and tighten it.

so complex, i know.

note- slight sarcasm

edit- this is how i did mine.

http://img481.imageshack.us/img481/2743 ... 003zz4.jpg
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"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
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