Combustion Cannons

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SpudFiles Potato Gun Commercial

Last post by quinn whitsitt
Replies: 15
by PCGUY » Tue Oct 29, 2013 10:54 pm
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First post

I've been wanting to get in some spud shooting action this fall before the weather got cold. I know it's been a while since I filmed anything for...

Last post

thank you for creating this website is there anything i can do to help
15 Replies

1125032 Views

Last post by quinn whitsitt
Fri Feb 09, 2024 2:38 pm
Sparker Reference Guide

Last post by quinn whitsitt
Replies: 45
by rcman50166 » Tue Feb 05, 2008 4:19 pm
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First post

OK. Everyone always seems to know more than me in almost every topic on this site. But this is my domain! High voltage electricity is what i know...

Last post

great job how can i help the fourms
45 Replies

358228 Views

Last post by quinn whitsitt
Fri Mar 01, 2024 10:52 am

Topics

Methane "factory" design

Last post by kenbo0422
Replies: 26
by Demon » Sun Sep 28, 2008 8:26 am
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Seem if i cant use combustion spudguns(my parents wont let me)
i thinked of a way to make your own propellant:

1.You put any sort of biodegradable...

Last post

I used to work in wastewater treatment many years ago. Its an anaerobic digester. Keep it wet, warm (about 98F), and mix daily (shake), and it'll...
26 Replies

7364 Views

Last post by kenbo0422
Mon Oct 06, 2008 3:01 pm
Combustion Sniper

Last post by Bully Dog Airsoft
Replies: 22
by devilman » Wed Feb 13, 2008 10:29 pm
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Completed it a while ago but enver got round to posting it up.

I had some issues with finding a combustion chamber that didnt blow the cap of. The...

Last post

but i love overkill lol :D
22 Replies

13971 Views

Last post by Bully Dog Airsoft
Mon Oct 06, 2008 4:07 am
reliability

Last post by jimmy101
Replies: 5
by robbo@robbo » Thu Oct 02, 2008 4:54 pm

First post

how reliable is metered propain or butain , i mean will it fire first time everytime ( obviously if theres spark.. ect)
what is the best way to make...

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Actually, hate to differ with everyone else (well, actually, I don't :D ). The mixture can be off by a lot and the gun will still fire if it is well...

5 Replies

2639 Views

Last post by jimmy101
Fri Oct 03, 2008 12:13 pm
Gort's Blue Flame III (Don't forget to watch the video!)

Last post by EphOph
Replies: 43
by sgort87 » Tue May 01, 2007 12:10 am
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I've been very excited to share the Blue Flame's 3rd generation with you guys. :D I've really really really enjoyed this launcher since I finished it...

Last post

He said the valve was from McMaster, part number 6464K12. It currently goes for $18. I also found a similar one at DeeTag. For the rest of the meter,...
43 Replies

17801 Views

Last post by EphOph
Fri Oct 03, 2008 9:49 am
Need Help!

Last post by Ragnarok
Replies: 21
by nickz » Wed Sep 24, 2008 1:38 pm
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I just built a combustion gun with a bbq ignitor and a automotive sparkplug, the problem is the the plug only fire if I hold the metal part of it.

I...

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Whatever. Get over it.
You know, it pays to be polite to people like Jimmy, he knows a heck of a lot.

Normally if you're proven wrong, it's much...
21 Replies

7929 Views

Last post by Ragnarok
Mon Sep 29, 2008 4:44 pm
still working on my monster cannon, but here is my cool grip

Last post by jimmy101
Replies: 7
by F.E.A.R._Sniper » Sun Sep 28, 2008 2:19 pm

First post

like the title says my cannon is still under construction. I am planning on using it like a crew served weapon ( I am a Marine Corps Infantryman so i...

Last post

F.E.A.R.
Is the handle part of the pressure envelope (i suspect it isn't). Perhaps install a roller switch (aka snap action switch) inside the handle...

7 Replies

3794 Views

Last post by jimmy101
Mon Sep 29, 2008 4:22 pm
.

Last post by nibbler125
Replies: 21
by serpico501 » Wed Mar 26, 2008 6:06 pm
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.

Last post

id add somethin to the wiring like wire casing and a smaller toggle switch to clean it up but great gun. I love the combustion chamber style im...
21 Replies

8027 Views

Last post by nibbler125
Sun Sep 28, 2008 7:42 pm
a spark question.

Last post by nickz
Replies: 12
by stevenarroyo » Thu Sep 25, 2008 9:55 am

First post

ok people i have a new question......
am going to use a electric BBQ ignitor and i spark plug. first do you think it can work?? and am planing on...

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Use A 1/4 NPT tap, It will fit tight.

I've never encountered a spark plug in my life that had 1/4 NPT threads. Not saying they don't exist, but...

12 Replies

3784 Views

Last post by nickz
Sat Sep 27, 2008 8:02 am
2nd Cannon, SHORTIE

Last post by flamerz14
Replies: 4
by flamerz14 » Thu Sep 25, 2008 9:56 pm

First post

Called the shortie, its just made from the combustion chamber of my previous gun. I only had to remove the threaded endcap set and about an inch of...

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It IS ergonomic, can be shot by one hand and most importantly, free and took less than 15 minutes. The lighter is a tight fit, and I've been using it...

4 Replies

3364 Views

Last post by flamerz14
Thu Sep 25, 2008 11:23 pm
super glue?

Last post by Killjoy
Replies: 9
by nibbler125 » Wed Sep 24, 2008 9:04 pm

First post

ok I have been making a potato gun it has I believe a 1.25 inch barrel and a T section as a combustion chamber. with a 40 inch long barrel. my...

Last post

I have a little over ten years worth of experience and knowledge concerning gluing cannons together with super glue and I can say it works. However,...

9 Replies

4594 Views

Last post by Killjoy
Thu Sep 25, 2008 3:00 pm
(edit more questions)new project and i need some help!

Last post by psycix
Replies: 8
by stevenarroyo » Mon Sep 22, 2008 4:56 pm

First post

i have make a combustion cannon before, but i want to make this new 1 a little big and better then my last 1. my last 1 was a inline, spray and pray....

Last post

Yes that will work.
Why wouldnt it?

8 Replies

2945 Views

Last post by psycix
Thu Sep 25, 2008 11:05 am
C:B ratio

Last post by Hotwired
Replies: 12
by stevenarroyo » Tue Sep 23, 2008 7:00 pm

First post

am planing on making a new Combustion Cannon with all the good stiff propane metering/ camber fan. the cannon is going to be a over/under design.

my...

Last post

Possibly.

Or then again such a long barrel could give the gases behind the projectile time to cool enough to cause a vacuum and make the projectile...

12 Replies

3886 Views

Last post by Hotwired
Thu Sep 25, 2008 8:53 am
reliable ignition

Last post by starman
Replies: 7
by WEEMAN » Tue Sep 23, 2008 2:25 pm

First post

quick question on an ignition method..........
ive used a piezo in my last 2 sudguns...i wanna try something else preferably cheap and realiable...

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where can i get lantern ignitors?? i checked crappy tire and they didnt have any............btw is there a ignition thats like a trigger other than a...

7 Replies

2850 Views

Last post by starman
Wed Sep 24, 2008 8:55 am
My 2nd cannon...

Last post by WEEMAN
Replies: 5
by Butters » Sun Sep 21, 2008 1:25 am

First post

Hey all, Butters here. THis is my 2nd cannon. It used to be a double barrel, but I was having some trouble with it.

5 foot, 3 inches in length....

Last post

nice gun...although starman is right, you should probably fork out for some new pipe.....question about the second boobtube vid.....the white thing...

5 Replies

2469 Views

Last post by WEEMAN
Tue Sep 23, 2008 2:19 pm
What's a better combustion tank?

Last post by starman
Replies: 4
by Grandtheftyourwife » Mon Sep 22, 2008 10:36 pm

First post

Using schedule 40 pvc what would be a better combustion as well as more combustion a longer 1.5''tank of 27'' or a 20'' of 3''? Im shoting for...

Last post

Please punctuate your sentences better. It's hard to tell what you are asking here.

This really depends on your barrel size. If you are shooting...

4 Replies

2286 Views

Last post by starman
Mon Sep 22, 2008 11:28 pm
ammo

Last post by poofwizBOOM
Replies: 5
by poofwizBOOM » Sun Sep 21, 2008 11:19 am

First post

ok i was watching this vid on how to make a cannon and in the intro he shot a flaming/ exploding projectile. i cant figure out how he did it! :P any...

Last post

yeah i know that cannons amazing!

5 Replies

2795 Views

Last post by poofwizBOOM
Sun Sep 21, 2008 12:25 pm
Monster V1 - GB Adv Comb

Last post by poofwizBOOM
Replies: 15
by JET47 » Sat May 31, 2008 11:13 pm
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Just finished my first combustion gun tonight. Haven't fired it yet though, don't want to wake up the neighbors =P but damage pics coming...

Last post

thats sweet! looks like the terminator spud gun! 8)
15 Replies

7896 Views

Last post by poofwizBOOM
Sun Sep 21, 2008 11:53 am
Venting Question (Valve Size)

Last post by EphOph
Replies: 5
by EphOph » Wed Sep 17, 2008 6:51 pm

First post

Hello All, I'm working on a new combustion and I was wondering if the ball valve I have selected will be adequate for venting. The chamber is 4 clear...

Last post

Thanks guys. I think I'll stick with the 1 . If I find that it's restricting flow too much, it's not hard to modify another threaded cap with a...

5 Replies

1890 Views

Last post by EphOph
Thu Sep 18, 2008 11:40 am
If you want to make a really loud bang. . .

Last post by jimmy101
Replies: 13
by explsvcookie257 » Mon Sep 01, 2008 10:20 pm

First post

Well hello everyone i have not been on in a while but I made a combustion on saturday after I had already made a pneumatic weird I know but I have a...

Last post

not necessarily a more powerfull spark will ignite the fuel better than a weak spark
Nope.

The power and/or performance of a combustion spudgun is...

13 Replies

12266 Views

Last post by jimmy101
Thu Sep 18, 2008 11:35 am
How much would it cost to make a....

Last post by AgiTator
Replies: 34
by Pooper » Sat Aug 09, 2008 12:01 am
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How much would it cost to make a spud cannon that could fire approximately 350 yards? I am new to making these and am wondering what ranges are like...

Last post

I'm in the process of measuring how far my spuds go.. 2 x 6' barrel powered by a 4x16 chamber... I nearly lose sight of 'em. I do know were they're...
34 Replies

11602 Views

Last post by AgiTator
Wed Sep 17, 2008 10:35 pm
retiring guns

Last post by AgiTator
Replies: 5
by nibbler125 » Sun Aug 31, 2008 8:26 pm

First post

i know that if a potato gun gets too old then it will eventually explode. i was wondering when is a good service life for a potato gun

Last post

I've wondered about the service life also.

WHen I built my big one, I etched the date of its creation right on the plastic so that I don't forget...

5 Replies

2495 Views

Last post by AgiTator
Wed Sep 17, 2008 1:24 am
Is this very safe?

Last post by AgiTator
Replies: 18
by Paradox » Sun Sep 14, 2008 12:48 am
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Hey guys new to the site here... i built my first spud gun last summer and i have had a lot of fun with it! i would like to build a new one sometime,...

Last post

I've dreamed about some day building a gun out of steel welded pipe that I could run with oxy/acetylene or oxy/propylene.

I only use propane in pvc...
18 Replies

6871 Views

Last post by AgiTator
Wed Sep 17, 2008 1:12 am
What the ATF considers a "firearm"

Last post by blind909
Replies: 13
by SpudUke5 » Tue Sep 09, 2008 3:20 pm

First post

(This only applies to anyone is the U.S.)

Well i though about joining rocketry club at my school, and i talked to him about the hobby that we all...

Last post

, read that, PCGUY sent a letter to the ATF, and it will tell you that they are legal. No he didn't;)

Im sorry, A friend of his did.

13 Replies

3497 Views

Last post by blind909
Sun Sep 14, 2008 9:59 pm
Flynt 5000

Last post by rp181
Replies: 14
by PCGUY » Sat Feb 12, 2005 6:43 pm

First post

Flynt 5000

Provided by Flynt

Removable rifled barrel. 4 double Y Chamber. Heavy Duty Video Camera Tripod w/quick release.

Gun is balanced so...

Last post

looks like a hose clamp

14 Replies

14180 Views

Last post by rp181
Fri Sep 12, 2008 6:19 pm
First combustion "cannon"/flame thrower

Last post by psycix
Replies: 3
by BurningApples » Mon Sep 08, 2008 9:04 am

First post

I have no clue what to call it, since I haven't shot anything with it yet. Just sprayed old spice and it makes a big flame.

I'm gonna take it...

Last post

Try to drop something into that (like a tennis ball)

3 Replies

2398 Views

Last post by psycix
Fri Sep 12, 2008 12:37 pm

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