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

942789 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

304515 Views

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

Topics

Self Contained Hydrogen Repeater

Last post by mrfoo
Replies: 30
by Cthulhu » Wed Dec 05, 2018 4:36 pm
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I've read all the '08 threads with the argument for and against Hydrogen as a combustion fuel, but recently there's been a lot of buzz on youtube for...

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Hah, that's sweet.
30 Replies

29998 Views

Last post by mrfoo
Mon Aug 26, 2019 1:51 am
Combustion Cannon with stand

Last post by Haniball1337
Replies: 2
by Haniball1337 » Sun Jul 07, 2019 7:11 am

First post

Hi everyone. I want show you my Potato gun, what I made. For me it is little ugly. I need to clean it but it works and it is fueled via 100 ml...

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Thanks. I don't see on bottle any words about mix.

2 Replies

5279 Views

Last post by Haniball1337
Mon Jul 08, 2019 4:06 am
Brownie points to the one who can explain this cannon video

Last post by mark.f
Replies: 7
by Moonbogg » Sun Jun 16, 2019 9:07 pm

First post

What is going on here? The video has strange music and there is something artistic about the whole thing that I love, but I am wondering what is...

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archived
Looks like he had been working on it long before 2012 it seems, although of course since it's a smaller site the actual page on the gun...

7 Replies

7930 Views

Last post by mark.f
Mon Jul 01, 2019 9:38 am
Automatic Combustion Chamber Idea?

Last post by hectmarr
Replies: 12
by Doctore » Tue May 21, 2019 9:18 pm

First post

Hello!

Again, one of those hypothetical scenarios, it might sound silly but here is the idea.

The device would be composed of two chambers...

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Fun toy, my first homemade weapon :D
It does not have much energy because it is not compressed, and the ammunition is small, but I always liked it....

12 Replies

13469 Views

Last post by hectmarr
Sat May 25, 2019 1:53 am
Ignition types

Last post by MDSpudderButter
Replies: 5
by Potato Demon » Sat Oct 27, 2018 10:04 pm

First post

Hi, I was wondering what the best ignition (other than a stun gun) is for spud guns. I generally use 2 nails and the piezoelectric thing from a bbq...

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I use one of these in my combustion cannon. I've used both 2(AA) batteries for around 3v input, and now a 5v input from a USB power block. Both work...

5 Replies

12434 Views

Last post by MDSpudderButter
Mon Jan 28, 2019 8:03 pm
Sleek Streamlined Golfball Launcher

Last post by jackssmirkingrevenge
Replies: 12
by Cthulhu » Tue Dec 18, 2018 10:04 pm

First post

I wanted to make a combustion cannon that would not only have great performance, but also would be sleek and durable with an endless supply of high...

Last post

товарищ, it works!

12 Replies

10912 Views

Last post by jackssmirkingrevenge
Mon Dec 24, 2018 9:06 am
My first spud gun

Last post by Potato Demon
Replies: 15
by farcticox1 » Thu Oct 18, 2018 5:50 am
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I'm not a combustion guy but pictures would be good :D

Last post

Wow! Those look amazing, I don’t think I could build anything that good. I might attempt something similar to what I’ve already made just with a...
15 Replies

14650 Views

Last post by Potato Demon
Sun Oct 28, 2018 3:53 pm
Rifle to combustion double camera, caliber 4.75 mm

Last post by hectmarr
Replies: 2
by hectmarr » Mon Sep 03, 2018 7:20 pm

First post

I was trying to finish this little project and I managed to do it :D
It is a combustion gun that works with ethyl alcohol. It has a double...

Last post

nice build, what do you mean by a double combustion chamber system

Thank you :) Look at my post:

Something more of this here:

There is the...

2 Replies

5383 Views

Last post by hectmarr
Mon Sep 10, 2018 8:52 am
Noise cannon for RC planes

Last post by Futterama
Replies: 162
by Futterama » Fri Oct 16, 2015 5:56 am
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Hi spudders!

I came to this forum because I got that crazy idea of putting a noise cannon on my big RC warbird plane.
The plane is 209cm/82 in...

Last post

So I tested 2 things today: Reed valve function and minimal mixer assembly.

First I 3D printed a white tube where I fitted the propane nozzle. Plain...
162 Replies

127453 Views

Last post by Futterama
Wed Aug 15, 2018 1:23 pm
Butane cannon build

Last post by jackssmirkingrevenge
Replies: 5
by ToyFactory87 » Sat Jul 28, 2018 10:35 am

First post

I made here a small cannon that is intended to use butane gas. My first trial ended up in failure. I am going to build a more reliable igniter that...

Last post

In that case it's almost guaranteed that you have far too much fuel in your chamber. I really recommend the syringe method for accurate filling.

5 Replies

11078 Views

Last post by jackssmirkingrevenge
Mon Jul 30, 2018 7:51 am
Question on 3D printed canon design and regulators

Last post by Cthulhu
Replies: 2
by nico » Sun Apr 08, 2018 12:37 am

First post

I’m designing a propane powered canon which will be entirely covered by an aesthetic 3D printed shell. I've run into the problem with regulators...

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Just use a regular propane meter if you really want to be accurate. They are pretty cheap and common at Lowes and home Depot.
Then set it up into a...

2 Replies

4654 Views

Last post by Cthulhu
Sun Apr 08, 2018 9:25 pm
4L Propane Inline Cannon

Last post by jackssmirkingrevenge
Replies: 10
by MDSpudderButter » Sat Feb 10, 2018 10:41 pm

First post

Hello all! New member here but have been lurking for a few years. Just finished up my latest build on a metered propane combustion. Specs are as...

Last post

Believe it or not this was just spuds.

Easy to believe on this forum, velocity is king even if your projectile is softer than your target.

10 Replies

10959 Views

Last post by jackssmirkingrevenge
Wed Feb 28, 2018 9:26 pm
Help me make a Non-projectile combustion BANG! cannon.

Last post by SemperSpud
Replies: 3
by SemperSpud » Tue Dec 26, 2017 10:36 pm

First post

Hello SpudFiles.

I've made a couple of spudguns in the past, but now i'm trying to create a Spudgun just for a loud bang!

This is what i came up...

Last post

Thanks great stuff. That Exhaust cannon is sick!

And my brother just bought a bird scare cannon. ( they are called Cherry cannons here because they...

3 Replies

4835 Views

Last post by SemperSpud
Sat Dec 30, 2017 12:33 am
Mini Spud/nerf gun

Last post by Pvc primer
Replies: 3
by Pvc primer » Sat Dec 16, 2017 10:25 pm

First post

Hi. I am new to Spud files and this is my first post. This is a mini Spud and nerf gun that I just made. It is a 1 inch chamber and a half inch...

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Nice work for a first project, consider metering your fuel with a syringe to extract the most performance:

Yes actually I just started doing that...

3 Replies

4692 Views

Last post by Pvc primer
Mon Dec 18, 2017 8:21 am
Monster Sprayer Combustion Cannon

Last post by Air2theBrain
Replies: 11
by 200BAR » Thu Sep 14, 2017 10:04 am

First post

P1070488 by Terry Griffiths , on Flickr

Collecting bits for a while, finally got round to putting them together. Mostly all used parts.
Spec:...

Last post

Wow mind blown. 8) :twisted:

That is one wicked cannon you have there!

EDIT-Looks very accurate also. 8)

Love it well done! :wink:

11 Replies

9094 Views

Last post by Air2theBrain
Tue Nov 28, 2017 6:36 am
Best fuel type - Cornell University

Last post by jimmy101
Replies: 4
by MyImagination » Tue Oct 24, 2017 5:33 pm

First post

I was recently reading a What If articles on. One pointed me to you guys which is cool but more to the point a source used was from Cornell...

Last post

There is something wrong with the report at
Studying the Internal Ballistics of a Combustion Driven Potato Cannon using High-speed Video
E.D.S....

4 Replies

5194 Views

Last post by jimmy101
Sat Oct 28, 2017 2:31 pm
Opinions needed on first spud gun

Last post by jackssmirkingrevenge
Replies: 5
by herve001 » Fri Jul 21, 2017 6:29 pm

First post

Hello everyone,

I'm new to the forum and I'm about to create my first combustion spud gun. I'd like it to be max 2 meters long.
I've read many...

Last post

Someone Knows How It Works This weapon needed to be explained to me how it works and how I can elaborate it

The maker of that launcher is active on...

5 Replies

5315 Views

Last post by jackssmirkingrevenge
Mon Aug 21, 2017 2:23 pm
Need advice on a new build

Last post by jackssmirkingrevenge
Replies: 10
by ski0724 » Tue Jul 11, 2017 8:11 am

First post

I'm about to build my second cannon and was hoping some of you veterans would offer some advice and/or stop me from ending up with a bunch of...

Last post

A final question - would the addition of burst discs be a significant benefit to this design? I'm not quite confident enough of my abilities yet to...

10 Replies

7239 Views

Last post by jackssmirkingrevenge
Thu Jul 20, 2017 4:54 am
First Combustion Rifle/Cannon

Last post by farcticox1
Replies: 4
by wolfgang22 » Sat May 13, 2017 2:42 am

First post

Hi all,
this is my first post on this site, so I apologise if I have done something wrong or put this in the wrong place. I have built a couple of...

Last post

This is what the whole thing looks like

Have progressed a bit since then, still using a sleeve over the barrel though

4 Replies

4318 Views

Last post by farcticox1
Sun May 14, 2017 12:14 pm
Help with large combustion cannon

Last post by jimmy101
Replies: 1
by Cthulhu » Fri Apr 21, 2017 8:29 pm

First post

I'm making a combustion howitzer that has a 3 inch PVC barrel that is 6 feet long as the barrel, I know that I need a 1.5:1 ratio combustion chamber,...

Last post

Your gun won't even warm up noticeably let alone melt. The combustion process generates a high temperature but relatively little heat.

1 Replies

3643 Views

Last post by jimmy101
Tue Apr 25, 2017 12:25 pm
Combustion chamber below barrel for repeating cannon?

Last post by Cthulhu
Replies: 3
by Cthulhu » Wed Apr 12, 2017 7:13 pm

First post

Hi, I'm new to the forum, so if I make any mistakes please tell me.

I have built a simple combustion cannon before, but after watching Grant...

Last post

Thanks so much on the info, the breech for the projectiles will be a PVC interrupted screw that has a de bange interruptor for an airtight seal, my...

3 Replies

4649 Views

Last post by Cthulhu
Thu Apr 13, 2017 9:16 am
Wookiee Cannon

Last post by auxiliary
Replies: 6
by auxiliary » Wed Nov 23, 2016 8:27 pm

First post

Hi Spudfiles,

I made an advanced combustion cannon to complement my pneumatic cannon Bigfoot! I call it the Wookiee Cannon :D

There is nothing...

Last post

It's not huge like VERA where it can use Wookiees as ammo, but It does have a 2 barrel for potatoes! I will upload a compilation video soon so you...

6 Replies

6384 Views

Last post by auxiliary
Thu Dec 22, 2016 9:28 pm
Building a 150 or 200 mm foam ball larp cannon

Last post by EverGreed

by EverGreed » Tue Dec 20, 2016 4:12 am

Greetings from Israel,

I think i managed to put it all in the title, but here's what i'm looking to build or get help with.
I've been asked to...

0 Replies

14169 Views

Last post by EverGreed
Tue Dec 20, 2016 4:12 am
The idea of the dispenser potato gun

Last post by sharpshooter
Replies: 11
by BORIS_ELCIN » Fri Dec 02, 2016 11:12 am

First post

Hello, I am writing through an interpreter, because I do not know English well.
I would like to know if someone tried to make the dispenser as in...

Last post

Why not just measure the correct amount of fuel with the syringe, and squirt that into the chamber? Would of course have to find a syringe of...

11 Replies

9231 Views

Last post by sharpshooter
Fri Dec 16, 2016 2:22 pm
O2 + C3H8 timed fueling

Last post by matti

by matti » Wed Nov 09, 2016 11:38 am

Hi ! I need help.. for fueling..

I have been designing fueling system for 5:1 oxy-propane mix and I'm having some trouble finding a way to get...

0 Replies

9365 Views

Last post by matti
Wed Nov 09, 2016 11:38 am

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