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

636387 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

214050 Views

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

Topics

Combustion Sniper (UPDATE 1.2)

Last post by freder
Replies: 18
by freder » Thu Feb 05, 2009 9:17 am
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First post

It´s finished what do you think now?
________________________
Hey there spudders,

I actually wanted to build a mini just for fun because I was...

Last post

Well... that sounds good but my dad isn´t amused about my hoppy :?
So a normal compressor will have to do the job :D

I´m really thinking about...
18 Replies

7847 Views

Last post by freder
Wed Feb 11, 2009 8:55 am
Propane Injection question.

Last post by starman
Replies: 14
by talknspud » Mon Feb 09, 2009 6:03 pm

First post

My buddy and I have been making guns for awhile and we are working on some propane gun designs. When using propane, what is the best way to get the...

Last post

Will any of the combustion or pressure go back up the hose once fired? Does a person disconnect the hose from the fitting on the chamber before you...

14 Replies

5441 Views

Last post by starman
Tue Feb 10, 2009 5:27 pm
Advanced Hydrogen Mini Combustion Cannon

Last post by rcman50166
Replies: 34
by rcman50166 » Wed Feb 06, 2008 8:27 pm
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This is a new concept I'm trying out. I'm using metered hydrogen (optional oxygen) as the fuel source. I have a fuel cell producing hydrogen and...

Last post

Yea, thanks for the information. It was powerful enough at 10:1, I might lose my cannon at 2:1
34 Replies

14953 Views

Last post by rcman50166
Tue Feb 10, 2009 5:05 pm
Small Pistol-Grip Combustion

Last post by burke_a_lot
Replies: 10
by CrashTestDummy II » Fri Jan 16, 2009 12:14 am

First post

This one's been like, 95% complete for a month or so now, and all I had left to do was attach the handle to the body of the gun.

The chamber is 2 x...

Last post

looks like a WWII welrod

10 Replies

9284 Views

Last post by burke_a_lot
Sun Feb 08, 2009 3:34 am
tiny spud gun build from copper, need help.

Last post by ramses
Replies: 2
by trance_master » Sat Feb 07, 2009 6:52 am

First post

Hi,
Im new in all this business.
I want to build a tiny spud gun from copper.
The ignition i think to use is from a electric lighter.
All the...

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this should probably be in the min, but whatever. there are threaded adapters available for the re-fueling end, as well as threaded caps. I would...

2 Replies

1206 Views

Last post by ramses
Sat Feb 07, 2009 4:35 pm
Little spudgun, (pistol format, 30cm long)

Last post by eggbom
Replies: 15
by eggbom » Wed Feb 04, 2009 3:12 pm
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this is my first post on this 'great' site and here is my spudgun i've made, it's only 30cm long.
it shoots very good/far for this little thing....

Last post

ok i will check it soon, thanks
15 Replies

6297 Views

Last post by eggbom
Fri Feb 06, 2009 12:41 pm
Propane fueling question

Last post by inonickname
Replies: 17
by Combustion Monkey » Fri Jan 30, 2009 4:45 pm
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I was doing some testing today with odd results. The day started off with shooting the cannon with golf balls and spuds. Testing went well and the...

Last post

Thanks for all the solid science that has been posted up. Makes me glad I started the topic! Now its time to find or build a tank warmer that will...
17 Replies

4162 Views

Last post by inonickname
Fri Feb 06, 2009 7:20 am
sniper (combustion)

Last post by inonickname
Replies: 15
by ckman » Wed Feb 04, 2009 9:35 pm
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Hey guys this is my first non mini combustion I made it today while I was home sick dmage shot and vid will be up tomorrow.

chamber: 1 inch pvc...

Last post

Agree with sputnick. Draw up your guns. You'll have a better finished product and be happier with it. For example when I joined I wanted a gatling...
15 Replies

7093 Views

Last post by inonickname
Fri Feb 06, 2009 2:50 am
Hair spray

Last post by JohnnyBOOM
Replies: 14
by TollBooth » Mon Feb 02, 2009 9:39 pm

First post

While looking to buy hair spray for my gun, i notice that you can buy hair spray with strong hold (10) or pretty much no hold (1). I'm guessing this...

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If metering propane isn't your thing. You can buy a propane torch, and attach it to your gun. Hold the button half way down to fill the chamber, and...

14 Replies

10248 Views

Last post by JohnnyBOOM
Thu Feb 05, 2009 9:44 am
New advanced combustion

Last post by inonickname
Replies: 7
by inonickname » Tue Jan 27, 2009 10:11 pm

First post

Here's some stuff on my next gun (assuming it isn't halted by strict parents).

Ignition:
1/2 PVC, cut in half horizontally. Copper tape spark strip,...

Last post

And, unless you are going to use clear PVC for your chamber, no one will ever see the pretty LEDs in your fan.

Unless...they were looking down the...

7 Replies

2154 Views

Last post by inonickname
Wed Jan 28, 2009 8:57 am
Advanced Combustion FPS And Foot Pounds Of Energy?

Last post by trigun
Replies: 6
by spudkilla224 » Tue Jan 27, 2009 9:49 pm

First post

Hello, i am in the process of making a Advanced combustion with a 30 long 3 inch diameter pipe, and a 2 diameter by 5 foot long barrel. I am using...

Last post

so the mapp is better maybe i'll upgrade. I inspected your cannons farther and saw what you were talking about with the male to 4-2 reducer it looks...

6 Replies

1813 Views

Last post by trigun
Wed Jan 28, 2009 12:53 am
My 2nd Cannon Ever (80% complete)

Last post by trigun
Replies: 6
by serpico501 » Fri Mar 28, 2008 5:01 pm

First post

alright, since making my first cannon ( ) a few of my friends stopped over during/after the building process just to see what was up.

one of them...

Last post

those work great dont get the kind with 3 leads though they are a huge hassle

sry for kicking old thread crap

6 Replies

4571 Views

Last post by trigun
Wed Jan 28, 2009 12:28 am
Better than a burst disk?

Last post by Combustion Monkey
Replies: 26
by Combustion Monkey » Tue Jan 27, 2009 6:18 pm
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I've been trying to figure out a way to get the effect of a burst disk without the hassel of replacing something between shots. I am thinking of...

Last post

Very nice gun. I half started this thread to see why no one was using some version of a mechanical dump valve. And now i have the answer I think. The...
26 Replies

4838 Views

Last post by Combustion Monkey
Tue Jan 27, 2009 8:17 pm
Breech design question

Last post by Combustion Monkey
Replies: 15
by viking4141 » Thu Jan 22, 2009 6:12 pm
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First post

On a breech loading spud gun, is it safe to modify the PVC screw-on endcap so that it operates as an interrupted screw breech (i.e. remove 1/2 of the...

Last post

I agree with the camlock setup. I use it to great effect on my cannon. I actually separate the combustion chamber several inches from the back to...
15 Replies

3624 Views

Last post by Combustion Monkey
Tue Jan 27, 2009 3:36 pm
3" chamber or 4" for advanced combustion

Last post by Radiation
Replies: 2
by jmeyer1022 » Thu Nov 27, 2008 1:06 am

First post

I already have a fair amount of spare 3 pipe, but I'm thinking a 4 inch chamber would be better due to the C:B ratio on diff barrels. Thoughts?
Also...

Last post

Like Starman said, 4 for larger ammo like taters and golfballs, smaller for marbles, darts or paintballs. I absolutely love my 3 X14 chamber, but I...

2 Replies

1819 Views

Last post by Radiation
Mon Jan 26, 2009 10:09 pm
Disposable Camera Ignition

Last post by jimmy101
Replies: 28
by sputnick » Fri Jan 23, 2009 10:26 pm
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First post

After much delay, I present a sh|tty video of my super camera, it doesn't look very impressive on film, but trust me, it's much louder and brighter...

Last post

Any way, that is kind of pointless for ignition. Look up a triggered spark gap. come to think of it, i have a explanation up:

AKA a Trigatron (as I...
28 Replies

9250 Views

Last post by jimmy101
Sat Jan 24, 2009 7:00 pm
An interesting accident

Last post by Combustion Monkey
Replies: 26
by Combustion Monkey » Thu Jan 22, 2009 4:58 pm
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First post

First, nothing was damaged.

I was testing my new golf barrel today. My first shot went off without a hitch, but i noticed some pressure leakage...

Last post

Oh and i have plenty of barrel :wink: . Four feet of internal then two 3.5ft sections that i can add externally.
26 Replies

6022 Views

Last post by Combustion Monkey
Sat Jan 24, 2009 5:45 pm
motorised lantern lighter

Last post by Cosmic Muffin
Replies: 18
by Cosmic Muffin » Fri Jan 16, 2009 5:37 am
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ay blokes.
i was just thinking, could you hook up a small electric motor to a lantern sparker?
so you could have a continuous spark ?
and i was...

Last post

ooooo exams?
tut tut
you should be studying young man :P
thats a strange exam time..
usually we have exams at the end of the year in Australia
i...
18 Replies

6012 Views

Last post by Cosmic Muffin
Mon Jan 19, 2009 7:42 pm
High ROF Propane Gatling Cannon, 2" Pykrete Slugs

Last post by SilentJ20
Replies: 14
by cannon freak » Wed Jan 14, 2009 4:13 pm

First post

Well hello all, its been some time since I've posted on this site so forgive me if I'm not up with whats new in the spud gun world.

Alrighty well...

Last post

I agree it is kind of an ideal, but not an unreachable one.

Doesn't a typical minigun spin a heavier barrel assembly at much higher...

14 Replies

6760 Views

Last post by SilentJ20
Mon Jan 19, 2009 12:18 pm
small .22 gunpowder cannon

Last post by jrrdw
Replies: 6
by alwinovich » Sun Jan 18, 2009 10:55 am

First post

i was bored, so i decided to make a small cannon, wich i later perfected
it uses a the gunpowder and fuse from a firecracker
it shoots lead airgun...

Last post

Thanks for getten to me on this guys!

Locked!

6 Replies

3913 Views

Last post by jrrdw
Sun Jan 18, 2009 11:30 am
Aluminium Chamber(Ignition Ideas????)

Last post by psycix
Replies: 26
by SPUD-U-LIKE » Sat Jan 03, 2009 5:51 am
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hi all, noobies here,a few colleagues and i are in the middle of designing an aluminium spud launcher,the question we pose is How to attatch the BBQ...

Last post

So you use a 1x mix propane, but with more air?
Whats the point of that may I ask? You will have unspent oxygen in your chamber.
Then simply add less...
26 Replies

7153 Views

Last post by psycix
Wed Jan 14, 2009 1:42 pm
The Bettie, now with damage pics in the first post!

Last post by Combustion Monkey
Replies: 10
by Combustion Monkey » Sun Jan 11, 2009 8:01 pm

First post

The gun is a coax breach loader running a 346 cubic inch chamber into a 1.5in barrel. The barrel is made in sections so it can be up to 13ft long but...

Last post

nice gun, not all new people come here displaying such ingenuity. Job well done

Thanks for the great compliment!

And to answer Starman
Are you...

10 Replies

4643 Views

Last post by Combustion Monkey
Tue Jan 13, 2009 5:26 pm
Fuel Idea

Last post by psycix
Replies: 5
by SpudsMcGee » Mon Jan 12, 2009 4:08 pm

First post

Most everyone knows when people street race or drag race they use Nitrous Oxide to give their car a boost. So I was wondering if it would do the same...

Last post

Increasing burn rates and/or amount of fuel because of addition of oxidizers is dangerous.
Your basically making a hybrid this way, a metal chamber...

5 Replies

1692 Views

Last post by psycix
Tue Jan 13, 2009 7:43 am
SG 110 "murderlizor" trying again

Last post by inonickname
Replies: 11
by doochman » Mon Dec 01, 2008 7:34 am

First post

Hey guys
just joined. this is my second attempt at a first post. the first one disappeared so if this appears twice, please forgive me.

I built...

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thanks for that. didnt mean to lecture anyone ;)

let it be noted that although i trust my workmanship (except maybe i can go for glueing lessons) i...

11 Replies

5014 Views

Last post by inonickname
Tue Jan 13, 2009 6:30 am
Spark Strip Fail

Last post by Xxplosive42o
Replies: 15
by Xxplosive42o » Wed Jan 07, 2009 11:19 pm
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I just had an epic fail with the spark strip I posted earlier. Somehow the strip worked perfectly until I mounted it into the chamber. It wound up...

Last post

Yes, I could do that Jimmy. I'm not the go-to guy when it comes to boards, but I can tell when something is fried at least. I'll cut it apart in the...
15 Replies

7254 Views

Last post by Xxplosive42o
Mon Jan 12, 2009 1:21 pm

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