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

How to Build a Propane Meter

Last post by Hubb
Replies: 56
by BC Pneumatics » Thu Apr 05, 2007 2:50 am
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Brought to you by BCVids.com

Link no longer valid, edited by jrrdw.

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It doesn't matter what size pipe or what type of fittings are used in a fuel meter. What matter's is the meter's volume in relation to the chamber....
56 Replies

33311 Views

Last post by Hubb
Tue Mar 02, 2010 10:27 am
patator cg 3500

Last post by SpudBlaster15
Replies: 9
by julien_62 » Wed Jan 28, 2009 2:40 pm

First post

Hello!
i would like to say to you i'm french so sorry for my faults :D
Sometimes i speak with a translate so...
My name is julien and I am 15
I...

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

9 Replies

5650 Views

Last post by SpudBlaster15
Sat Feb 27, 2010 4:27 pm
Question about the propane bottles

Last post by jimmy101
Replies: 14
by VirusX » Thu Feb 18, 2010 1:55 pm

First post

Hey,

I very often see little propane bottles attached to combustion cannons and I got 2 questions:

1) Where do you get those? Can I buy them in a...

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If you are properly fueling a typical combustion spud gun you are not transferring enough butane (or propane) to freeze anything.

If your hose is...

14 Replies

9292 Views

Last post by jimmy101
Fri Feb 26, 2010 2:06 pm
hydrogen combustion gun

Last post by rcman50166
Replies: 17
by Marffy » Tue Feb 23, 2010 11:42 pm
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As we all know hydrogen can make a big boom. such as the hydrogen bomb. But, could we take that boom and make it work with a combustion potato...

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Voila
17 Replies

6273 Views

Last post by rcman50166
Thu Feb 25, 2010 3:28 pm
First advanced combustion launcher

Last post by Spud Bud
Replies: 6
by Spud Bud » Thu Feb 18, 2010 6:27 pm

First post

Okay guys this is my First attempt at an advanced combustion. The specs are:
4'' dia,24'' long chamber(30in. with all fittings included)
374 ci...

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Spud Bud, You are posting almost thumbnail size photos here. I'm sure Mark.f was suggesting larger pictures as well as closer shots.

Can you replace...

6 Replies

3559 Views

Last post by Spud Bud
Sat Feb 20, 2010 11:38 am
Mini Potato Pistol

Last post by clemsonguy1125
Replies: 2
by clemsonguy1125 » Sun Feb 14, 2010 6:33 pm

First post

Well heres my mini potato pistol. The handle is from a cheapo glue gun and the sparker is from a grill ignitor. I know I need to paint it.

Edit- I...

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So did you set it up so the trigger on the pistol grip hits the button to the sparker? It's hard to see in the picture. Whats the paint going to be?...

2 Replies

4886 Views

Last post by clemsonguy1125
Mon Feb 15, 2010 3:55 pm
How Do You Calculate PSI In Propane

Last post by spudtyrrant
Replies: 5
by Woody » Sun Feb 14, 2010 8:30 am

First post

I'm looking to get a 4% propane mix in the chamber (which I heard was best, correct me if I am wrong). I'm guessing its some calculation using volume...

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Its the same calc as -_- gave me spudtyrrant. Either way thanks oh it just came up as the Burnt Latke home page on my computer

5 Replies

1698 Views

Last post by spudtyrrant
Sun Feb 14, 2010 5:31 pm
combustion fuel ratio

Last post by jimmy101
Replies: 6
by poppamies » Mon Feb 08, 2010 4:47 pm

First post

hi!

i just got an idea from combustion fuel/air precision gun. i have the consept but i need to know a good fuel and fuel air ratio. can somebody...

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Poppamies , you should read the spud wiki page on fuels . If you can understand it then you know pretty much everything there is to know about...

6 Replies

2416 Views

Last post by jimmy101
Tue Feb 09, 2010 4:49 pm
ME1-05H Stand w/ elevation adjustment.

Last post by McCoytheGreater
Replies: 105
by McCoytheGreater » Tue Dec 22, 2009 2:11 am
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Cerberus, Guardian of Hell, was the legendary three headed dog from Greek Mythology. Cerberus is also the name given to our 3 barreled ME 1-05H...

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It looks to me like the black tips on the exhausts direct the gases at a 90° angle to the barrel up and down and not backwards.

I found this in...
105 Replies

37978 Views

Last post by McCoytheGreater
Mon Feb 08, 2010 7:28 pm
Wire drive Storm Cannon

Last post by Billy Bob
Replies: 10
by Billy Bob » Sun Jan 31, 2010 5:22 am

First post

Hi,

i want to show you my cannon from 2008. The cannon is a simple Co2 Fe´s . The stand works with two 12 V car window cleaner motors. The filling...

Last post

Thanky to all for your comments.

Nicely done you should mount some sort of sight in front of the camera to help with aiming though.

Yeah that...

10 Replies

4599 Views

Last post by Billy Bob
Sun Feb 07, 2010 6:22 am
Israeli Thunder Generator

Last post by McCoytheGreater
Replies: 18
by Biopyro » Tue Jan 19, 2010 3:04 pm
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Another invention we've been doing for years, which the Israeli military has doubtless paid thousands for;
The Thunder Generator

It's basically a...

Last post

That's a bird cannon. I checked out the website, and I just don't see how loud booms would work on riot control without serious injury to folks'...
18 Replies

5450 Views

Last post by McCoytheGreater
Mon Feb 01, 2010 11:01 pm
Ignition choices

Last post by McCoytheLesser
Replies: 29
by broken_system » Mon Nov 23, 2009 9:49 pm
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Hey guys,
I posted a topic before about my idea for a fairly high rate of fire propane combustion cannon however I have run into a snag.

I checked...

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If your feeling froggy you could try the 555 timer Ignition circuit . It works and gets a decently long, hot arc BUT you need some sort of higher...
29 Replies

11031 Views

Last post by McCoytheLesser
Fri Jan 29, 2010 12:55 am
fans.....

Last post by McCoytheGreater
Replies: 16
by Marffy » Sat Nov 07, 2009 12:17 am
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so putting fans in your combustion chamber allows you to have a gas vapor stay a vapor in the chamber. where do i place it so the fan doesn't blow up?

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Simple sheet aluminum you get at a home improvement store works fine for making a bracket. It's relatively cheap and very easy to work with. A pair...
16 Replies

6477 Views

Last post by McCoytheGreater
Fri Jan 29, 2010 12:29 am
Spark generators

Last post by McCoytheLesser
Replies: 23
by broken_system » Mon Jan 11, 2010 11:28 am
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Hey guys,
Just wondering about something. If you wanted a setup that did not require batteries or replaceable flints or piezo crystals, how else...

Last post

If you have some RC batteries you might be able to try to make a 555 ignition circuit . I've built this exact circuit with great results and all the...
23 Replies

10081 Views

Last post by McCoytheLesser
Wed Jan 27, 2010 4:47 pm
Oxygen sources

Last post by Spudnyk
Replies: 13
by EvilFish » Tue Jan 26, 2010 5:53 am

First post

Hello, I have recently been making designs for a pump action combustion, and plan for it to have both oxygen and propane injected into the chamber...

Last post

Hello, I have recently been making designs for a pump action combustion, and plan for it to have both oxygen and propane injected into the chamber...

13 Replies

4857 Views

Last post by Spudnyk
Wed Jan 27, 2010 1:24 pm
cartridge fed combustion build log

Last post by McCoytheGreater
Replies: 58
by jackssmirkingrevenge » Wed Jan 20, 2010 12:07 pm
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I've decided to revisit this idea , here's what I have so far, looks promising :D

How's that for blowback :D took the ignitor right out of my...

Last post

Next time try to film under indescant lights though, the fluorescent lightning flickers.

We've found that halogen lights aren't as susceptible to...
58 Replies

22620 Views

Last post by McCoytheGreater
Wed Jan 27, 2010 12:09 pm
1st Propane/MAPP gas cannon

Last post by tghhs
Replies: 18
by zanfirestorm » Sat Jan 23, 2010 11:32 pm
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My name is Ben and this is a gun that was built only for hairspray at first. Then that got too unreliable so we decided to amp it up. My friend Nate...

Last post

In your next project make it clean and well built.
18 Replies

12548 Views

Last post by tghhs
Tue Jan 26, 2010 6:14 am
My 1st spud cannon

Last post by MrCrowley
Replies: 14
by Joshatdot » Thu Oct 15, 2009 3:01 am

First post

Hello all at spudfiles!

This is my 1st spud cannon, I got the plans from

4 inch chamber : I calculated to be 240~245 cubic inches
2 inch barrel :...

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where does one get a small propane tank for a spud gun
Did you try looking at a hardware store... :roll:

Next time, research before you post or...

14 Replies

6809 Views

Last post by MrCrowley
Fri Jan 22, 2010 11:19 pm
Propane

Last post by Spudnyk
Replies: 11
by Spudnyk » Mon Jan 04, 2010 5:39 pm

First post

Looking to convert to propane any advice on a set up please let me know don't wanna kill myself

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Look in the Yellow Pages for plumbing stores and such. In NZ I have to go to a plumbing merchant, who mainly do bathroom and kitchen plumbing but...

11 Replies

4134 Views

Last post by Spudnyk
Wed Jan 20, 2010 4:49 pm
questions regarding propane in an attempt at a semi

Last post by chenslee
Replies: 5
by F.E.A.R._Sniper » Wed Jan 13, 2010 1:47 pm

First post

aight so i haven't kept up much as of late but i am pretty sure the hunt for a reliable semi-auto combustion launcher is still on. i have an idea...

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FYI

When designing my repeater cannons, I initially intended it to be semi-auto. When I did the calculations, it became clear that in order to...

5 Replies

2541 Views

Last post by chenslee
Tue Jan 19, 2010 11:21 am
Combustion dart launcher

Last post by psycix
Replies: 20
by ckman » Sat Feb 21, 2009 2:48 am
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Hello there this is a simple gun that I was teaching my friend how to make.

Barrel: 1/2 metal piping 2 feet
chamber: 2 feet of 1 inch sch 40 pvc...

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You just kicked up a year old topic.

Ok, it WILL not blow out, but it CAN blow out.
Well, my argument against a friction fit barrel:
Ammo can jam....
20 Replies

9380 Views

Last post by psycix
Sat Jan 16, 2010 12:03 pm
spud gun problems

Last post by hyhatchi
Replies: 13
by hyhatchi » Thu Jan 14, 2010 10:08 pm

First post

Hello i am a brand new member and i need some help if possible. today i made my second combustion type potato cannon and for some reason it will not...

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ok i think i may have finally traced down the problem. the grill ignitor that im using had a 90 degree turn on one probe so i cut it off and removed...

13 Replies

13422 Views

Last post by hyhatchi
Fri Jan 15, 2010 10:44 pm
Oxidation/Corrosion in metal combustion chambers

Last post by john bunsenburner
Replies: 10
by broken_system » Mon Dec 07, 2009 7:41 pm

First post

Hey guys, sorry for bombarding you all with my questions but I am near the start date for making my cannon. So here goes:

As you can probably guess...

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A good example of aluminium rusting is when aluminium has its protective layer removed by mercury, if it then exposed to air(the title is wrong, the...

10 Replies

4837 Views

Last post by john bunsenburner
Wed Jan 13, 2010 3:20 pm
Electric bbq grill igniter trouble

Last post by artillerycreations
Replies: 2
by artillerycreations » Tue Jan 12, 2010 12:09 pm

First post

I have used this type igniter with much success before. Once with two sparks just like it is meant to be. Another time i was feeling i could use a...

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Thanks ill give it more attention.

2 Replies

1403 Views

Last post by artillerycreations
Tue Jan 12, 2010 4:47 pm
how do you guys set up peizo bbq sparkers?

Last post by Boom_erang
Replies: 14
by turner » Fri Dec 04, 2009 8:38 pm

First post

on my combustion, mine fits perfectly in 3/4 pvc and i just have holes drilled in the side. the wires were placed as close to the two contacts and...

Last post

Sounds like you're good to go!

14 Replies

6464 Views

Last post by Boom_erang
Thu Jan 07, 2010 11:21 am

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