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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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...

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

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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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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...

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great job how can i help the fourms
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Last post by quinn whitsitt
Fri Mar 01, 2024 10:52 am

Topics

first post : my new combustion& upgrade pics

Last post by vardas
Replies: 30
by vardas » Sat Jan 31, 2009 9:14 am
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thanks to the many great ideas here i've finally finished my gun
all sch.40 double walled c.b. chamber
. its 81 in. overall
57.25 in. x 1.5 in...

Last post

By mike_siii , shot with DMC-FX55 at 2009-05-06
30 Replies

9630 Views

Last post by vardas
Sun May 17, 2009 9:18 am
Gathering info

Last post by psycix
Replies: 1
by joe blogs » Sun May 17, 2009 5:57 am

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Where some people mount their fans in cannons is puzzling. Doesnt having the fan between the sparks and the barrel subject it to lots of escaping...

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Yes, if you place your fan near the barrel opening, it will be subjected to a big rush of air, possibly breaking it.

Ratio calculations? Do you mean...

1 Replies

1331 Views

Last post by psycix
Sun May 17, 2009 6:47 am
Parts in Australia

Last post by jmadden91
Replies: 24
by jmadden91 » Thu May 07, 2009 6:10 pm
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Hey anybody from Australia know of any online stores for pressure PVC fittings? Tradelink and Reece are charging me $35 au just for a 100mm x 50mm...

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yeh they seem to.

@Joe Bloggs, i have set up a camera flash circuit im just waiting until i can pick up a nice little ignition coil from a little...
24 Replies

7807 Views

Last post by jmadden91
Thu May 14, 2009 4:58 pm
Ratio conundrums!!??

Last post by Hotwired
Replies: 11
by joe blogs » Wed May 13, 2009 6:19 am

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I have been wanting to make the bl-520 rear loaded cannon for some time now and that lead me to chamber:barrel ratio's. Below are the calculations...

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Cute lil thing ^^

It looks like it works exactly like a stungun circuit with a questionmark hovering over the low voltage switching method.

11 Replies

5643 Views

Last post by Hotwired
Thu May 14, 2009 3:25 pm
Tippman C Ignition - possible for spudguns?

Last post by Hotwired
Replies: 63
by SPG » Wed Apr 01, 2009 7:50 am
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I did a bit of googling and found THIS site which has the C3 Ignition Module for $35.

I know you could butcher a camera, or steal your dad's BBQ...

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Cold heat is just a forked tip that is shorted out through the solder and component you want to solder.
63 Replies

19381 Views

Last post by Hotwired
Wed May 13, 2009 1:22 pm
Non Pressure Rated PVC Cement?

Last post by SubsonicSpud
Replies: 15
by jmadden91 » Mon May 11, 2009 8:11 am
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Hey so iv paid ridiculous amounts of money buying pressure rated pipe (not cheap here in aus) and glued some parts together already, but i just...

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Errr...you don't have to sand the joints. The solvent actually melts them together so increasing the surface area is kinda moot. Cleaning them is...
15 Replies

5142 Views

Last post by SubsonicSpud
Wed May 13, 2009 2:23 am
My latest Combusion

Last post by rikukiakuchiki777
Replies: 15
by Woody » Mon May 11, 2009 4:19 pm
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This is my latest cannon. Let me know what you think

Cam Lever breech loading concept

Duel stun gun ignition (advertised as 200kv however I highly...

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For damage vids some plywood is ok, but if you can get your hands on an old TV or monitor frozen spuds will obliterate them, and the glass shatter...
15 Replies

5662 Views

Last post by rikukiakuchiki777
Tue May 12, 2009 11:23 pm
are these materials safe?

Last post by Carlman
Replies: 13
by joe blogs » Mon May 11, 2009 3:33 am

First post

hi all, ive just got a few parts from the store today and am wondering if they will do. i looked at the wall thickness and tried to get the parts...

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Reece and tradelink are absolute ripoffs, as i sugested to someone recently make friends with an irrigation store owner/employee, you can get...

13 Replies

5468 Views

Last post by Carlman
Mon May 11, 2009 10:13 am
Preloaded AND precharged catridge.

Last post by Demon
Replies: 10
by Demon » Sun May 10, 2009 2:38 pm

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What i always wanted to have in the domain of spudgunning was an auto/semi auto gun(sniper of preference). It made me make some huge waste of money(...

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I will make bigger catridges, 1 inche ones and 4 inches long. with the one that i had previously, hgdt told me the i was going to be 300 fps, what i...

10 Replies

3056 Views

Last post by Demon
Mon May 11, 2009 6:51 am
No mounts?

Last post by inonickname
Replies: 4
by Mike_Hunt0420 » Fri May 08, 2009 7:19 pm

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I haven't gotten my pictures up yet to show but I have grnade launchers on a couple of my combustion cannons. I haven't seen any cannons of the like...

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Hopefully tonight or tomorrow I'll have pictures, mater of getting them to my comp from my phone and I'm lazy lol. I should have them posted today. I...

4 Replies

1569 Views

Last post by inonickname
Fri May 08, 2009 11:42 pm
Mini spud gun pistol, Help me choose the color

Last post by mikemurph
Replies: 12
by mikemurph » Tue May 05, 2009 10:38 pm

First post

I've built a good number of minis, but this is one of my favorites so far. I don't really know why, but it shoots with a much greater velocity that...

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I have decided to chose black, but i don't have any paint. I have covered it mostly in black electrical tape

12 Replies

5176 Views

Last post by mikemurph
Thu May 07, 2009 7:14 pm
Conical burst discs?

Last post by psycix
Replies: 4
by sputnick » Thu May 07, 2009 4:56 pm

First post

Hey everyone, been a while since I posted anything here, (been over at The Canadian airgun forums) But here's a little something I was wondering...

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DDT may be a must for this to work with a gas mixture. That way a gas mixture does create a supersonic shock wave.

4 Replies

2103 Views

Last post by psycix
Thu May 07, 2009 6:15 pm
Marble Combustion Gun

Last post by douggie
Replies: 2
by douggie » Thu May 07, 2009 2:28 am

First post

Firstly hi everyone this is a great site plenty of info and everyone seems nice enough.
i have made some simply spray and pray pvc tennis ball guns...

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thanks for the site and note taken and i found the spell check function

2 Replies

1399 Views

Last post by douggie
Thu May 07, 2009 3:16 am
First cannon [ TDC-10 ] (with videos now!!!)

Last post by tom666
Replies: 50
by nightshot » Mon Dec 24, 2007 9:31 am
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Hey, this is my first cannon, i have just finished it today... And the name TDC-10 means Target Destroyer Cannon 10.. it was made of PVC pressure...

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hey man, very nice work.

Everyone can make a spudgun... but not everyone makes it look as slick.

You should make a custom wall rack, because it...
50 Replies

34364 Views

Last post by tom666
Tue May 05, 2009 5:54 am
4" sch40

Last post by Biopyro
Replies: 1
by brettdotcom14 » Mon May 04, 2009 2:25 am

First post

anyone wanna be a pal and give me a spare 16 of 4 sch40 pipe? i dont really feel like buying a whole 10' piece of it :)

Last post

Some places will sell shorter lengths if you ask, and if it's an offcut you might even get it heavily discounted.

1 Replies

1220 Views

Last post by Biopyro
Mon May 04, 2009 5:53 am
The Magic Wand or Roman Candle. (Mini Spud Gun)

Last post by mikemurph
Replies: 8
by mikemurph » Sat May 02, 2009 2:48 pm

First post

This is my newest Gun. It is about a foot and a half long, and it shoots anything that can fit in side the 7mm barrel.

It is practically silent...

Last post

It looks like you have knowledge and ability to make something more extreme!!
Thanks, but i just don't have the resources i pretty much use what i...

8 Replies

4843 Views

Last post by mikemurph
Sun May 03, 2009 11:33 am
dual weild pistols

Last post by Gaderelguitarist
Replies: 2
by facist7 » Fri May 01, 2009 11:57 pm

First post

i want to make a pair of combustion spud guns that run on axe or propane that i could dual weald without breaking my arms, can any 1 give me some...

Last post

Use the search function and research!!!

Draw them up!!!

Go to a hardware store!!!

2 Replies

1506 Views

Last post by Gaderelguitarist
Sat May 02, 2009 12:08 am
Supersonic crack or what?

Last post by Technician1002
Replies: 17
by elitesniper » Fri Apr 24, 2009 11:50 pm
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Hey guys, I was just wondering why this happens..on my micro advanced combustion seen here
when I put nothing in the barrel and just inject propane...

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Think of it as, the ammo usually absorbs the energy, but without it, all that goes into sound.
Not really all of it - sound is mercifully low...
17 Replies

4801 Views

Last post by Technician1002
Tue Apr 28, 2009 11:37 pm
My first cannon!

Last post by starman
Replies: 15
by Spudman8592 » Mon Apr 27, 2009 6:54 pm
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Hey everyone! I thought I would post some pics of my first cannon. It is a propane powered combustion cannon with two 2.5 SCH 40 chambers. As of...

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Can you suggest some good camlocks because i have searched forever on google to find some pvc camlocks but cant find any.

You might search for them...
15 Replies

5357 Views

Last post by starman
Tue Apr 28, 2009 11:07 pm
Breech loading carburated rapid fire pump action

Last post by covey12
Replies: 7
by Technician1002 » Sat Apr 25, 2009 7:17 pm

First post

After seeing the French fry relay competition, I'm brainstorming on a rapid reload breech loading, combustion. Ignition not shown, but would probably...

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i dont get it either lol

7 Replies

2350 Views

Last post by covey12
Mon Apr 27, 2009 4:37 pm
Sureshot BL-625 Prototype

Last post by jagerbond
Replies: 24
by jagerbond » Mon Apr 20, 2009 10:17 pm
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Just completed and test fired. Still awaiting Chrony results but thought to share the initial prototype photos. Performance info /damage video to...

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The reduced intensity of the muzzle blast following the projectile does reduce the tumble induced by the blast. We studied it for the t shirt...
24 Replies

8516 Views

Last post by jagerbond
Mon Apr 27, 2009 4:25 am
How to calculate a venturi?

Last post by jimmy101
Replies: 7
by inonickname » Thu Apr 23, 2009 8:27 am

First post

I require to make a custom venturi (think of the nozzle on a blowtorch, lighter, bunsen burner..) to make a stoichometric (as close to perfect as...

Last post

The venturi would work because the air is provided at pressure by a pump and draws the fuel, not the pressurized fuel drawing the air like a torch,...

7 Replies

2164 Views

Last post by jimmy101
Fri Apr 24, 2009 3:35 pm
Union Burst Disk Holder Problems

Last post by spudkilla224
Replies: 2
by spudkilla224 » Sun Apr 19, 2009 10:26 am

First post

Hello, i just bought a pvc union, and i'm attempting to use cardboard burst disks in the union, and when i fire it, all of the air releases around...

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Ok thank you for the tip. :)

2 Replies

1130 Views

Last post by spudkilla224
Sun Apr 19, 2009 10:32 am
WildFire

Last post by Biopyro
Replies: 13
by propanepower » Thu May 12, 2005 11:26 am

First post

This is my latest combustion cannon. It features direct propane injection, a chamber fan and a full automotive igniton system. The ignition system...

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Those are called camlocks. They allow the easy changing of barrels because they just unclip.
Be aware that this topic is 4 years old. It might have...

13 Replies

8170 Views

Last post by Biopyro
Fri Apr 17, 2009 10:28 am
first combustion cannon (painfully simple)

Last post by psycix
Replies: 7
by neighboragrivator1 » Thu Apr 16, 2009 5:37 pm

First post

This started out as an air cannon, but after the cap shot off and almost hit my friend and i in the head, I decided I had to rethink the whole cannon...

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Looks like an okay cannon.

You could modify the ball valve to make a breach loader.
Drill a hole in the side, as large as your barrel ID.
Via that...

7 Replies

4546 Views

Last post by psycix
Fri Apr 17, 2009 5:00 am

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