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

955677 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

314879 Views

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

Topics

I need some help

Last post by cowkiller
Replies: 4
by cowkiller » Wed Nov 05, 2008 9:50 pm

First post

i am having trouble calculating the amount of different fuels i need and i tried to search for info but i seem to be missing what i am searching for....

Last post

Thank you to every one you have pointed thing i either over looked or did not see

4 Replies

1690 Views

Last post by cowkiller
Thu Nov 06, 2008 4:29 pm
My First Cannon... Lots of pictures!

Last post by Andymcvick
Replies: 16
by Andymcvick » Mon Nov 03, 2008 7:22 pm
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First post

Hey everyone.. I've been browsing these forums for a while now and I finally decided to post my cannon.

Its not very complicated. My barrel is 2...

Last post

Okay thanks.. I'll have to give that a try :D
16 Replies

7164 Views

Last post by Andymcvick
Wed Nov 05, 2008 7:07 pm
Ignition with Rocket engine igniters?

Last post by jimmy101
Replies: 23
by unhipjuffowupp » Tue Sep 30, 2008 1:15 am
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So i decided to skip the whole grill ignitor idea and just use rocket engine ignitors to ignite the fumes... Is this possible?

I hooked everything...

Last post

Estes rocket igniters, steel wool + 9V battery, fine nichrome wire with a 12V battery, 14G copper wire with an automotive type battery ... All of...
23 Replies

8786 Views

Last post by jimmy101
Wed Nov 05, 2008 4:38 pm
marble gun

Last post by VH_man
Replies: 1
by blowgunsgalore » Mon Nov 03, 2008 6:09 pm

First post

has anyone made a smaller caliber gun if so what size tankand barrel
. I am gonna use it for pigeons and sparrows

Last post

Usually, the Discussion of Hunting with your spudgun is Frowned Upon. If your going to do it, so Be it, but dont tell us about it.

Also, Do your...

1 Replies

1152 Views

Last post by VH_man
Mon Nov 03, 2008 6:12 pm
ak 47 inspired cannon

Last post by pizlo
Replies: 11
by nibbler125 » Sun Nov 02, 2008 10:46 pm

First post

here is my idea to build a semi auto potato cannon. it uses a gas piston to hit a valve to release propane into the combustion chamber and to load...

Last post

There's very little point to this.... fueling the combustion would take a lot longer than just muzzle loading.

11 Replies

3433 Views

Last post by pizlo
Mon Nov 03, 2008 12:47 pm
looking to fuel my monster cannon

Last post by psycix
Replies: 12
by F.E.A.R._Sniper » Mon Oct 27, 2008 12:05 pm

First post

yes i've been teasing you guys with talk about my monster cannon every now and then. I want to put pictures up really badly but because I am in the...

Last post

Indeed.
SCH80 wall thickness may sound like a sturdy pipe, but when the pipe diameter is one foot, its just a thin, flimsy wall which can't have alot...

12 Replies

3977 Views

Last post by psycix
Sun Nov 02, 2008 10:41 am
Advanced Combustion Potato Gun

Last post by LCTChamp
Replies: 6
by LCTChamp » Sat Nov 01, 2008 12:50 pm

First post

This is my first advanced combustion. After playing with a spray n pray combustion I decided I needed more power, so this is what I came up with. I...

Last post

Starman actually it is pretty consistent. If you open the ball valve barely it wont over pressurize. And if it does I turn off the propane open the...

6 Replies

3224 Views

Last post by LCTChamp
Sun Nov 02, 2008 8:05 am
choice of fuel

Last post by MrCrowley
Replies: 3
by nibbler125 » Sat Nov 01, 2008 11:31 pm

First post

what is youre favorote fuel?

Last post

Pointless topic. Similar topic posted recently.

Locked.

3 Replies

1791 Views

Last post by MrCrowley
Sun Nov 02, 2008 2:16 am
water bottle rockets

Last post by cannon monkey
Replies: 7
by cannon monkey » Sat Nov 01, 2008 4:48 pm

First post

i going to make somthing to spend fun time with my little brother a few years ago a teacher made one and the students had to make their own rockets...

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ya well he is 7

7 Replies

2656 Views

Last post by cannon monkey
Sat Nov 01, 2008 10:49 pm
clear pvc combustion ?

Last post by starman
Replies: 1
by nibbler125 » Sat Nov 01, 2008 9:33 pm

First post

I want to build a 100% clear pvc cannon with a 6 long by 3 wide combustion chamber and for barrel have a 3' long by 2 wide bore but im mostly worried...

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Sched 40 clear PVC is pressure rated...I assume that's what you have.

Might I suggest a somewhat larger chamber...will be easier to fuel and more to...

1 Replies

1099 Views

Last post by starman
Sat Nov 01, 2008 9:49 pm
Tank Materials

Last post by fogus
Replies: 13
by fogus » Tue Oct 28, 2008 11:44 pm

First post

Hello All,

I have been doing a lot of thinking towards my next cannon, which I plan to be an over/under (i.e., non-inline), 2 inch diameter barrel...

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I'm looking for the kind that fits into the 1/4 NPT

You'l better use a replacement schraeder valve, more there is pressure, more it seals.
No mess...

13 Replies

4276 Views

Last post by fogus
Sat Nov 01, 2008 6:07 pm
Semi-auto combustion design #2

Last post by auxiliary
Replies: 4
by auxiliary » Wed Oct 29, 2008 6:19 pm

First post

I came up with a design similar to my last one, but it solves the problem of spewing propane out the side of the gun. I decided to go with using a...

Last post

Oops :oops: My mistake. In my excitement over having a design that works , I ignored a very crucial flaw that you pointed out. Well... never to fear,...

4 Replies

1323 Views

Last post by auxiliary
Fri Oct 31, 2008 11:16 am
Here's a semi-auto combustion design...

Last post by psycix
Replies: 9
by auxiliary » Sat Oct 25, 2008 6:23 pm

First post

So this is how it works,
When you pull on the trigger, it is attached to the Delrin hop-up/feeding system so it and the barrel moves back. As it...

Last post

Maybe use pressurized air to blow fresh oxygen into the chamber, at the same time that the propane gets in.
Getting the right amount of fuel in would...

9 Replies

2521 Views

Last post by psycix
Wed Oct 29, 2008 5:46 pm
Can I fire my spudgun with the fan ON ?

Last post by psycix
Replies: 10
by nightshot » Tue Oct 28, 2008 9:31 am

First post

yes, this is the question.. it sound stupid but i need to know o.O
So, can I fire my spudgun with the fan turned on?

Last post

As said above, it doesnt make much of a difference whether you keep it running or not.
The main functions of a fan are mixing and venting, and...

10 Replies

4353 Views

Last post by psycix
Wed Oct 29, 2008 5:18 pm
What is the best fuel, how to light it

Last post by owza
Replies: 10
by 12tjklotz » Wed Oct 22, 2008 6:03 pm

First post

i have made my fist spudgun and i am having trouble actually launching the potatoes. I used AXE spray for about a second and then lit it with a...

Last post

I just use any deodorant thats lying around. May not be the most powerful stuff but it does the job and best of all it's free (pretty much)

Well,...

10 Replies

4429 Views

Last post by owza
Sun Oct 26, 2008 10:15 pm
Blunt Lakes simulator

Last post by qldrocketscientist
Replies: 5
by ROCK SOLID » Sat Oct 25, 2008 3:20 am

First post

Sorry i haven't posted in a while , do have other hobbies too ( model Rocketry).

I was just wondering i why i can type in my own dimensions for the...

Last post

thats good that i have a converter. What if the gun has a 100mm T section , dose Burntlakes RatCal only do spud guns that don't that a T section as a...

5 Replies

2325 Views

Last post by qldrocketscientist
Sat Oct 25, 2008 3:44 pm
Im New Here, This Is The First Spud Gun I Have Ever Made

Last post by john bunsenburner
Replies: 9
by car0010 » Thu Oct 09, 2008 5:59 am

First post

Hey Gyz, I am New To Spudfiles

This is my very first spud gun
i think it looks pretty cool but tell me the truth bout it
if you have any ideas on...

Last post

welcome,

we seem rather similar, im metric too and im pretty new

i like your simplicity and if you said it shoots over 100meters then its very...

9 Replies

3611 Views

Last post by john bunsenburner
Sat Oct 25, 2008 1:13 pm
Golf Ball Canon, big and LOUD

Last post by MortarArmy
Replies: 18
by MortarArmy » Sun Oct 19, 2008 7:02 pm
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First post

Not done yet, still waiting on my golfball barrel from BCARMS, but i couldnt resist trying it out.

This is my second gun, basically a redesign/scale...

Last post

got my golf ball barrel in today.

I severally underestimated the weight of a 5ft section of sleeved 2 pvc....
18 Replies

7819 Views

Last post by MortarArmy
Sat Oct 25, 2008 11:36 am
Semi-auto combustion concept

Last post by ramses
Replies: 23
by Ragnarok » Wed Oct 22, 2008 6:54 pm
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First post

As promised a few days back, this is the basics of the semi-auto combustion concept I have sitting in my mind.
This is the solenoid operated one, the...

Last post

I realize the problems now and when I get a chance I will correct and re-post.

Edit: revised, and as always, not to scale, layout not final,...
23 Replies

5053 Views

Last post by ramses
Fri Oct 24, 2008 2:43 pm
PVC help!

Last post by Demon
Replies: 5
by elad311 » Thu Oct 23, 2008 11:00 am

First post

i want to build a basic combustion cannon, but i don't know if the
kind of PVC i found, is good..
(O, and it's not threaded pvc)
I can squeeze it.....

Last post

OMG! This is french-european(i dont know were exactly) pvc!

This not a good idea of firing with this because it its not pressure rated at all.

And...

5 Replies

2109 Views

Last post by Demon
Thu Oct 23, 2008 5:10 pm
My First Successful Spud Cannon, Check It Out

Last post by elad311
Replies: 14
by hansom72 » Mon Apr 28, 2008 1:52 am

First post

Alright I finished my propane cannon now and wanted to put pictures on this website, but all my pics and videos cannont be uploaded because of their...

Last post

very nice gun!
looks very powerful! :D

14 Replies

5534 Views

Last post by elad311
Wed Oct 22, 2008 5:02 am
First spudgun :) Needing ignition help

Last post by TurboSuper
Replies: 31
by Silentone » Mon Oct 20, 2008 12:27 am
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Hi guys,

Ive done some reading, I have built myself a spud gun, Its all set and ready to let rip.. But the ignition system doesn't always spark, I...

Last post

You really have to play with the fuel mixture alot to get it to fire. Don't lose hope and keep at it, I had the same problem :wink:
31 Replies

8915 Views

Last post by TurboSuper
Tue Oct 21, 2008 5:31 pm
Fiberglass reinforcement?

Last post by Gippeto
Replies: 18
by auxiliary » Sat Oct 18, 2008 12:05 am
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First post

I am planning on building an inline advanced combustion with two 4 chambers connected with a Wye and a 45 degree elbow. The only kind of large...

Last post

One thing to remember is that nobody wants a bolt that bends (makes it hard to screw in, ya know?).

This is why we have BIGGER hammers! :lol:...
18 Replies

4813 Views

Last post by Gippeto
Mon Oct 20, 2008 12:26 am
Under over or inline?

Last post by psycix
Replies: 8
by SpudUke5 » Wed Oct 15, 2008 8:56 pm

First post

Ok well i am making a large bore combustion with a possible 4 foot chamber of 4 diameter pipe, with interchangeable barrels of 3 , and 2 .

Now i was...

Last post

An over-under design allows you to use longer barrels and therefore, it can have more power.
When using DWV, I'd say stick with an inline, or just...

8 Replies

2242 Views

Last post by psycix
Sat Oct 18, 2008 5:28 am
The Red Bullet

Last post by mrbadexample
Replies: 14
by NL_bjorn » Sat Sep 22, 2007 5:51 am

First post

Hello everybody,

Such as some of you already know my first spudgun have been
confiscated deer the police force. a couple months ago I decided to...

Last post

Hey nice cannon you got there, i've given up on my combustion cant find anywhere to get a sparker, they sell them at this BBQ galore place for like...

14 Replies

8010 Views

Last post by mrbadexample
Wed Oct 15, 2008 3:45 pm

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