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

1946107 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

532671 Views

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

Topics

spud launcher #1

Last post by cody2
Replies: 16
by cody2 » Thu Apr 19, 2007 7:35 pm
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this is my second cannon It works good but needs a chamber fan. the ratio is out wack and i cant get a good fuel distribution

new ignition needed,...

Last post

It is going to have a nine volt ignition soon as soon as I get to radio shack
16 Replies

10633 Views

Last post by cody2
Sun Aug 05, 2007 8:38 pm
Yet Another Noob...

Last post by jimmy101
Replies: 25
by CaveC » Thu Aug 02, 2007 11:49 pm
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I've been lurking as a guest for the past few days, and decided I'd sign up and spread my noobiness around the forums!

I've got nothing but time for...

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pre cut potatos(we took some 2in pipe and made a mold so we could pre cut potatos and cut the tips to make them fly a little better .)
The problem is...
25 Replies

10595 Views

Last post by jimmy101
Sun Aug 05, 2007 4:55 pm
Alternative Ignition

Last post by jimmy101
Replies: 12
by flamerz14 » Fri Aug 03, 2007 10:28 pm

First post

I can't find BBQ ignitors here (yet) and most definitely stunguns are illegal in my country. I heard those flyback thingys can be used...what and...

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I've got a flyback circuit question:
I just yanked a flyback from an old tv. I've located the correct coil leads on the bottom, but I can't find the...

12 Replies

4802 Views

Last post by jimmy101
Sat Aug 04, 2007 2:53 pm
VERY simple combustion cannon

Last post by dauphinoise potato
Replies: 3
by SpudBlaster15 » Sat Aug 04, 2007 12:37 am

First post

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse...

Last post

that's a nice family you have there!

3 Replies

2023 Views

Last post by dauphinoise potato
Sat Aug 04, 2007 7:56 am
first combustion

Last post by SnowFlox
Replies: 31
by unipa » Sun Oct 08, 2006 10:04 pm
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im 16 and this is my fist spud gun look

Last post

very nice cannon !! do you have a electric diagram of the ignition ? is it build with an NE555 and a power Transistor ?
31 Replies

15686 Views

Last post by SnowFlox
Fri Aug 03, 2007 5:36 pm
Home Made Ignition Devices

Last post by Marco321
Replies: 9
by dauphinoise potato » Thu Aug 02, 2007 3:58 pm

First post

I just made this ignition device using an old 6 volt ignition coil from my dads BSA lightning rocket that he sold. I used a homemade camera flash...

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That is pretty much what I made I used a bit of an old hack saw blade and an old coil of loads of wires I found. But the ignition coil is really weak...

9 Replies

3695 Views

Last post by Marco321
Fri Aug 03, 2007 5:13 am
My new Favorite fuel

Last post by Kenny_McCormic
Replies: 5
by spudgunnerwryyyyy » Wed Aug 01, 2007 8:27 pm

First post

So I was trying ether to no success then I just put denatured alcohol in a fine mist spray bottle and I love it. I live where its hot so it works...

Last post

I put it in a old bull frog bottle 3 sprays works for my small gun. Where is DR when you need him?

5 Replies

2193 Views

Last post by Kenny_McCormic
Fri Aug 03, 2007 12:35 am
Cannon on my 2/3 scale jeep

Last post by jackssmirkingrevenge
Replies: 16
by fred » Mon Jul 30, 2007 3:46 am
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Cannon mounted on my 2/3 scale jeep

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Haha yeah, if a potato slug from one of these things hit you I think you may be f*cked. Not proper f*cked :wink:

Looks heavy too, must be reliable....
16 Replies

7431 Views

Last post by jackssmirkingrevenge
Wed Aug 01, 2007 4:26 am
Pretty frickin' big combustion

Last post by iPaintball
Replies: 9
by noname » Tue Jul 31, 2007 11:20 pm

First post

Just some big ass gun that cost me less than $20. The barrel (10 feet, 2 PVC) was 50 cents, the chamber (4 feet, 4 ABS) was 50 cents, and the BBQ...

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Your lucky. All the scrapyard around here are just piles of random crap.

9 Replies

2771 Views

Last post by iPaintball
Wed Aug 01, 2007 12:07 am
Another cheap gun

Last post by noname
Replies: 2
by noname » Tue Jul 31, 2007 11:24 pm

First post

This one's pretty fun too, along with a decent paintjob. My friend wanted a gun similar to my 4th of July PB gun, and was going to buy one from me...

Last post

The wires are stickin' out, and so are the screws, but we just think of them as sights. :D
The handle is very comfortable, firing from the shoulder,...

2 Replies

1832 Views

Last post by noname
Tue Jul 31, 2007 11:50 pm
A few simple things I need clarification on

Last post by jackssmirkingrevenge
Replies: 9
by niglch » Mon Jul 30, 2007 9:48 pm

First post

The first thing I'm wondering about concerns the diameter of barrels. 4 chambers with 2 barrels and 3 chambers with 1.5 barrels seem to be the most...

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By power I meant range and speed. I want a gun that will shoot as far as possible (while of course still being safe to fire). I'm not very concerned...

9 Replies

3641 Views

Last post by jackssmirkingrevenge
Tue Jul 31, 2007 10:18 pm
spark strip question....

Last post by noname
Replies: 3
by hoarp001 » Tue Jul 31, 2007 3:57 pm

First post

Hi,

I have just finished making two spark strips for a combustion gun. each spark strip looks like this:

It has three 1mm gaps, and i am...

Last post

It'll work just fine, although as Pete stated, larger strips for bigger chambers will be more effective. I have 4 sparks each about a millimeter long...

3 Replies

1682 Views

Last post by noname
Tue Jul 31, 2007 7:33 pm
new spudgun

Last post by f.c
Replies: 2
by E-crown » Mon Jul 30, 2007 9:42 am

First post

i would want some help i was thinking if i had a chamber that 75mm in diameter and 50cm long and a barrel that was 50mm in diamiter and 1m long can...

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pneumatic or combustion ? i think it would be combustion and for combustion thats a fine ratio if you don't want a large amount of power. make the...

2 Replies

2341 Views

Last post by f.c
Tue Jul 31, 2007 5:38 am
Ammo

Last post by jackssmirkingrevenge
Replies: 8
by Scotty » Mon Jul 30, 2007 4:49 am

First post

I have been moulding my own rounds using a lead nose and polyurethane.
I would like to hear anyones suggestions as to the best shape for accuracy....

Last post

woof! :D

lol

8 Replies

3361 Views

Last post by jackssmirkingrevenge
Tue Jul 31, 2007 4:54 am
Preparing to build my first gun

Last post by psycix
Replies: 12
by niglch » Sat Jul 07, 2007 8:54 pm

First post

I'm probably going out to buy materials for my first potato gun tomorrow. I'm using combustion because it seems to be both the simplest and cheapest...

Last post

it is so loud because its a 1.2 ratio ;)

indeed, drop the chamber size (or increase barrel length) and it will become silent

12 Replies

4198 Views

Last post by psycix
Sun Jul 29, 2007 12:35 pm
easter egg gun not firing far

Last post by spud yeti
Replies: 6
by bob-a-lu » Mon Jul 16, 2007 11:51 am

First post

its combusting im using flammable air freshener but the egg gos about 10 feet whats wrong?

Last post

Im happy to hear you fixed the problem, does it work now?

6 Replies

2550 Views

Last post by spud yeti
Sat Jul 28, 2007 12:40 pm
Twitches Science Project V.2. "SNCA"

Last post by Modderxtrordanare
Replies: 20
by TwitchTheAussie » Tue Jul 24, 2007 2:16 am
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Well ever since V.1 Whompah Stompah blew up from an attack of MAPP gas, I decided to rebuild it. V.2 is finished. I gave it the name Spray and Click...

Last post

DDT? Isn't that a pesticide :?

yeah i think it is....:(

I ment that thing that happens to hybrids...were you loose your face...and it goes...
20 Replies

4931 Views

Last post by Modderxtrordanare
Fri Jul 27, 2007 10:29 am
How do you reduce battery voltage?

Last post by hi
Replies: 31
by Mr. Gopher Killer » Sat Jul 21, 2007 9:17 pm
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I have ben building an combustion cannon that uses a cordless ryobe drill handle and rechargeable battery. The problem is the batteries for the ryobe...

Last post

it takes .3 amps to kill you.
31 Replies

10772 Views

Last post by hi
Thu Jul 26, 2007 5:57 pm
sparks !!! sparks !!! Sparks !!!

Last post by dongfang
Replies: 12
by jeraldcyc » Sun Jul 15, 2007 1:57 am

First post

hi my country doesn`t sell stun-guns so i was wondering how i could make one , or perhaps a flyback transformer .... do tell me how please ... thanks...

Last post

BBQ igniters should be possible to find in a store specializing in .. well garden furniture and BBQs. They should be available as spares for the gas...

12 Replies

4755 Views

Last post by dongfang
Thu Jul 26, 2007 4:15 pm
Tater Salad

Last post by cody2
Replies: 9
by Specialist » Wed Apr 04, 2007 5:30 pm

First post

i just built tater salad its super powerful and LOUD :D and its got a pretty good kick back. it has a four inch chamber and a two inch barrel and a...

Last post

hardware store

9 Replies

4063 Views

Last post by cody2
Wed Jul 25, 2007 9:55 pm
liquid propane calculations

Last post by VH_man
Replies: 10
by singularity » Fri Jul 20, 2007 3:29 pm

First post

i recently acquired a green gas chamber complete with green gas valve, heres some pics

the actual chamber is about 2 long and has a...

Last post

hmm. im getting one of those along with my M-11 magazine (1 is just not enogh with this thing!!!!!)

and 1000 shots seems reasonable.

i may just be...

10 Replies

2761 Views

Last post by VH_man
Mon Jul 23, 2007 8:19 pm
Pressure Regulator for Propane

Last post by Pete Zaria
Replies: 6
by demilus » Sun Jul 22, 2007 8:21 am

First post

Hey, I'm back after a slight hiatus from spudding due to my pockets being emptied from my copper piston gun. I've built mainly pneumatics, and kinda...

Last post

Before you get a regulator, try the classic standard meter with two ball valves and a PSI gauge. If you're reasonably quick on the valves (close the...

6 Replies

4837 Views

Last post by Pete Zaria
Sun Jul 22, 2007 4:28 pm
Flow Regulators for Metering Propane

Last post by jimmy101
Replies: 7
by mark.f » Thu Jul 19, 2007 10:07 am

First post

I simply ask this because I've seen flow regulators everywhere, and their cheap. There are both the fixed kind, and the adjustable kind like you find...

Last post

The simplest flow regulator is just the standard benzomatic torch head. Unscrew the burner/mixer assembly (not the pipe to valve junction). You'll...

7 Replies

3214 Views

Last post by jimmy101
Fri Jul 20, 2007 6:24 pm
First Gun. Insight Wanted

Last post by jackssmirkingrevenge
Replies: 15
by wanimal » Sat Jun 30, 2007 11:56 pm
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I've wanted to build a Potato Cannon for a long time, but i've never really had the motivation to do so until today. I went to my friend's open...

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3) Porting the barrel is thought to increase the range and accuracy of the projectile by preventing the gases escaping from the end of the barrel...
15 Replies

6542 Views

Last post by jackssmirkingrevenge
Fri Jul 20, 2007 9:53 am
Spud Gun Silencer

Last post by jackssmirkingrevenge
Replies: 3
by tatekennedy » Thu Jul 19, 2007 9:41 am

First post

Hey i just made my first gun and i was wondering if any body had made a silencer for it. and if you had made on i wanted to know if it worked. just...

Last post

In any case, the same rules of longer barrel/smaller chamber apply to both combustions and pneumatics, as does silencer construction.

3 Replies

1673 Views

Last post by jackssmirkingrevenge
Thu Jul 19, 2007 9:52 am

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