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

1915818 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

526697 Views

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

Topics

copper guns

Last post by TurboSuper
Replies: 13
by Spudgun on Crack » Sat Jun 23, 2007 7:59 pm

First post

Just asking if you could post links to copper potato guns because i want to try to build a powerful rifle that can drive a marble or slug through...

Last post

My pneumatic is part copper. I got like 20' of pipe for $3 at a garage sale.

Yay me.

13 Replies

3613 Views

Last post by TurboSuper
Sun Jun 24, 2007 9:29 pm
The inofficial Knight Rider

Last post by Redcoat
Replies: 9
by Billy Bob » Sat Jun 23, 2007 4:16 am

First post

I build a new combustion spudgun made of steel.
The spudgun is very powerfull it shoot with a mono batterie throug a freezer one side. That means...

Last post

i knew you came from germany with the picture of david haselhof!!!!

no offence. :lol:

9 Replies

3129 Views

Last post by Redcoat
Sun Jun 24, 2007 4:08 am
the design for my first combustion

Last post by hoastmaster
Replies: 5
by hoastmaster » Fri Jun 22, 2007 5:56 am

First post

chamber:
20cm diameter (outside)
50cm lenght

barrel:
150cm lenght
5cm diameter (outside)

ignition:
9 volt car battery-charge...

Last post

the plan is for a mix of fuels im going to concoct using some knowledge of chemistry and so teenage injanuity (lol) as my choice of fuel

i came...

5 Replies

2375 Views

Last post by hoastmaster
Sun Jun 24, 2007 12:19 am
I really think there should be a limit

Last post by Hotwired
Replies: 8
by hoastmaster » Fri Jun 22, 2007 1:52 am

First post

this is nuts i would love to make one

pain in the but to reload i bet

Last post

I think I've seen that clip before around here.

Still think it's a waste of time :wink:

8 Replies

3539 Views

Last post by Hotwired
Sat Jun 23, 2007 11:40 pm
Mapp gas + Oxygen

Last post by Spudgun on Crack
Replies: 2
by Spudgun on Crack » Sat Jun 23, 2007 5:13 pm

First post

I have this mapp gas/oxygen blow torch that i got from sears for $50 and i don't have a use for it really, but it does have a map gas and oxygen...

Last post

Yea i need to do my homework on this, but thanks.

I hope to engineer a very very powerful cannon but i don't have welding equipment to put metal...

2 Replies

5308 Views

Last post by Spudgun on Crack
Sat Jun 23, 2007 7:53 pm
Supersonic non-hybrid combustion gun - it's feasible!

Last post by TwitchTheAussie
Replies: 32
by dongfang » Sun Aug 27, 2006 10:08 am
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First post

Hi,

If any of you have wondered if it is possible to shoot > Mach 1 with a butane gun, I found the answer a few months ago: It is.

The gun is made...

Last post

Thanks mate and yes electromagnet guns are expansive but a tonne of fun. And thanks for clearing that up for me mate.
32 Replies

15947 Views

Last post by TwitchTheAussie
Fri Jun 22, 2007 11:46 pm
L7 GBL

Last post by sjog
Replies: 14
by sjog » Mon Apr 23, 2007 9:27 pm

First post

326 cubic inches 1.75:1
chamber to muzzle on bolt action- 94 sdr-21 ( bcpneumatics action)
sgort gb barrel W/laser
The flat stock is Azek we use...

Last post

Thanks Spedy Welcome to the site
Everything ya want to know 'bout launchers is here.
Advice; don't take one person's opinion as gospel, listen and...

14 Replies

7728 Views

Last post by sjog
Fri Jun 22, 2007 7:51 pm
Valves for a propane meter?

Last post by hi
Replies: 8
by jermx » Mon Jun 04, 2007 4:41 pm

First post

I really need help, I'm as dumb as a brick when it comes to getting all the parts together to make my cannon!! lol
But when I get all the parts...

Last post

i just use hose for mine, kinda like noname's way.

8 Replies

2377 Views

Last post by hi
Thu Jun 21, 2007 3:40 pm
power

Last post by sandman
Replies: 8
by sandman » Fri Jun 15, 2007 12:32 pm

First post

i was hoping to use the same battery for my ignition and chamber fan, and i was wondering if a) anyone else does this, b) if having both on at the...

Last post

ok, thanks :)

now i have hope, lol

8 Replies

4717 Views

Last post by sandman
Thu Jun 21, 2007 6:44 am
Tennis Ball Combustion Cannon

Last post by joannaardway
Replies: 17
by Jumpin Jehosaphat » Tue Jun 19, 2007 5:48 pm
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First post

I want to make a hand-held combustion cannon because the little propane bottles are more portable than carrying around an air compressor.
I was...

Last post

The pressure rises enough to get the ball moving before the flame front reaches the back of the tennis ball.
That's unlikely to be the reason. The...
17 Replies

6989 Views

Last post by joannaardway
Wed Jun 20, 2007 4:01 pm
Calculating propane pressure

Last post by FeLeX
Replies: 3
by Sonicboom101 » Tue Jun 19, 2007 6:30 pm

First post

Hey I just Got finished with my new propane potato gun and I need some help on calculating the pressure I Have a 6'' meter pipe and its 3/8'' wide i...

Last post

Check out my how to:
Good luck!

3 Replies

1621 Views

Last post by FeLeX
Wed Jun 20, 2007 11:43 am
detached propane meter

Last post by noname
Replies: 9
by lukemc » Tue Jun 19, 2007 10:41 am

First post

i havent seen antthing like this so i thought i would share. well there is no way around it, bulky propane tanks atached to cannons look awful. i...

Last post

Pimpmann, since the air and fuel are already at the perfect mix in the tank, if a little leaks out, it's no big deal. I'm not sure if you understand...

9 Replies

2185 Views

Last post by noname
Tue Jun 19, 2007 7:31 pm
Propane to NPT adapter

Last post by frankrede
Replies: 10
by PVC Arsenal 17 » Mon Jun 18, 2007 7:28 pm

First post

I saw these brass adapters once that screw onto a propane tank (soldering torch kind) and have male NPT on the opposite end.

Does anyone know where...

Last post

I see them at camping supply stores sometimes

10 Replies

5088 Views

Last post by frankrede
Mon Jun 18, 2007 9:57 pm
Up in the mountains

Last post by frankrede
Replies: 9
by frankrede » Mon May 28, 2007 9:24 pm

First post

Well this weekend I took my metere propane combustion up itno the mountains and here in vegas my gun worked perfect with not one misfire but up in th...

Last post

I would doubt that you were any higher then 10K feet, probably more like 5K feet. So i'm surprised that the change in barometric pressure was enough...

9 Replies

2560 Views

Last post by frankrede
Sat Jun 16, 2007 10:43 pm
My little Spudgun

Last post by SnowFlox
Replies: 5
by SnowFlox » Sat Jun 16, 2007 8:38 am

First post

Hi there !

On youtube i saw those big spudguns and wanted to build one by my self.
Yesterday i made a little one of PVC.

The barrel (16mm PVC)...

Last post

Well you can get white PVC tubes, but there to thin.
I only looked at one hardware store. Maybe other stores have them.

pneumatics with metal ? i...

5 Replies

3556 Views

Last post by SnowFlox
Sat Jun 16, 2007 9:41 am
custom propane tank

Last post by meatballs
Replies: 25
by meatballs » Tue Jun 12, 2007 7:44 pm
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First post

so i had this idea. my propane cannon is awesome, but i dont like how it has this bulky propane bottle on the side. its one of the 14.1oz bottles,...

Last post

does anyone know anything about the chemical resistance of clear reinforced vinyl tubing?
25 Replies

5527 Views

Last post by meatballs
Fri Jun 15, 2007 11:11 am
mortar

Last post by Scotty
Replies: 17
by NoXi » Sat Jun 09, 2007 2:09 pm
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First post

Hi, this is gonna be my first combustion cannon. I have build mini-combustions in the past but nothing this big. I have decided to build a airsoft...

Last post

Your right jrrdw... Let's encourage thoughtfull and smart thinking here.
A spud gun is truly special if you and you only have designed and built it,...
17 Replies

6764 Views

Last post by Scotty
Fri Jun 15, 2007 4:20 am
New gun, need sugestions

Last post by Scotty
Replies: 8
by sea donkey » Mon Jun 11, 2007 8:30 pm

First post

This is my first attempt at building a spud gun. I have 4 x 15 chamber, a 2 x 5' barrel, and a grill igniter. I'm not sure how long to cut my...

Last post

If you use Propane as fuel the percentage sholud be 4-7% of the total volume of your chamber ( If your chamber is 1000ml you need to use 40-70cc of...

8 Replies

1967 Views

Last post by Scotty
Thu Jun 14, 2007 10:10 pm
New cannon.. Want to discuss aspects of it.

Last post by VH_man
Replies: 20
by anixon88 » Sat May 19, 2007 4:30 am
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I've build a combustion before, just your regular BBQ igniter and spraying Butane or releasing propane into the chamber and capping it.

Now im...

Last post

i like the muzzle brake........
20 Replies

7722 Views

Last post by VH_man
Thu Jun 14, 2007 9:34 pm
Chambers and barrels...

Last post by jimmy101
Replies: 4
by WitSkaapie » Wed May 23, 2007 8:10 am

First post

ok guys... i know this is a really noob question, but forgive me

i'm busy building my spudgun and i want to ensure that my C/B ratios are...

Last post

So anything over a 1:1 ratio is just wasting fuel? I remember people at Spudtech used to recommend 1.5:1 a lot, even though the BurntLatke tests said...

4 Replies

2677 Views

Last post by jimmy101
Thu Jun 14, 2007 2:25 pm
Project Masamune

Last post by Fnord
Replies: 5
by 13579 » Tue Jun 12, 2007 9:13 pm

First post

Well, I remembered the old potato cannon my dad used to have, so I got him to help me make another one.

So far its pretty standard combustion, but I...

Last post

Oh no.
Please no anime discussions.

Great first gun. I also use a propane torch on my combustion, they're really reliable.
Come to think of it, I...

5 Replies

1753 Views

Last post by Fnord
Tue Jun 12, 2007 11:41 pm
Haughty Hand-Held Howitzer V2.0

Last post by Spuddin
Replies: 23
by Zorrowannabe9 » Sat Sep 09, 2006 5:47 pm
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First post

Haughty Hand-Held Howitzer 2.0
Description - Propane powered combustion constructed primarily of ABS. The Original 4H was in need of some serious...

Last post

i just wanted to add my 2 cents here, not all of us noobs have been here for the past year, new ppl join everyday so any old post thats kicked up is...
23 Replies

12607 Views

Last post by Spuddin
Tue Jun 12, 2007 11:38 am
Meow The Spudgun

Last post by gotbass7
Replies: 14
by gotbass7 » Sat Jun 09, 2007 7:19 pm

First post

my second spudgun. the first one was very simple. so is this one, but this one has a chamber. i named it Meow. here are some pictures

this is...

Last post

but its done and peopple dont really care where we are. i mean here its the same as arresting someone for not wearing a helmet

14 Replies

5433 Views

Last post by gotbass7
Sun Jun 10, 2007 7:51 pm
ignition coils

Last post by jimmy101
Replies: 3
by singularity » Fri Jun 08, 2007 10:23 pm

First post

alright i have an ignition coil driver which is producing a 4 to 12 kHz 18volt signal across my ignition coil... but for some reason im not get the...

Last post

Singularity :
A 555 puts out a square wave which is what you want.

Do you know what the current rating of the 2n3055 is? I believe it is roughly 10A...

3 Replies

1782 Views

Last post by jimmy101
Sun Jun 10, 2007 12:12 pm
trouble with ignition

Last post by gotbass7
Replies: 4
by gotbass7 » Sat Jun 09, 2007 3:18 pm

First post

i just finished a soda bottle spudgun. or what ever you want to call them. with a big soda bottle as the chamber. only problem is the ignition is...

Last post

lol. thats to ghetto for me. but i think i figured it out. i found a way to hold it and push so it doesnt move it, but then i cant hold the gun. so i...

4 Replies

1620 Views

Last post by gotbass7
Sat Jun 09, 2007 11:53 pm

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