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...

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thank you for creating this website is there anything i can do to help
15 Replies

631380 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

213098 Views

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

Topics

Winter cam spud rifle

Last post by jackssmirkingrevenge
Replies: 13
by marcin411 » Mon Mar 28, 2011 7:35 pm

First post

It's been a while but here is my new spud rifle in winter camo.

Last post

The scope is real but the accuracy just doesn't hold up with a spud and a rifled barrel. Better ammo might be prove otherwise.

Potatoes are just...

13 Replies

6407 Views

Last post by jackssmirkingrevenge
Thu Mar 31, 2011 12:25 am
Trying to build Propane filling tube

Last post by loganc58
Replies: 7
by loganc58 » Sat Mar 26, 2011 6:14 pm

First post

Hey guys,
I have been researching and browsing this site for many hours the last week maybe trying to figure out what all is going on and receiving...

Last post

Okay, thanks a lot mark!
I'm going to Ace tomorrow, and will look for both the torch head and also the Female adapter.

7 Replies

3115 Views

Last post by loganc58
Sat Mar 26, 2011 8:48 pm
Pump Action Golfball Combustion

Last post by mark.f
Replies: 2
by mark.f » Mon Feb 21, 2011 9:36 am

First post

So, figured I'd post this. Planning on starting the build after my funds come in from my old job. I really have the money to build it now but I'm...

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Don't actually know if I'm building this anytime soon or not. Spent my time mostly finishing my copper pneumatic, and I have some other ideas for...

2 Replies

2572 Views

Last post by mark.f
Sat Mar 26, 2011 8:31 pm
BL-520 Vader with dark/night camo

Last post by JDP12
Replies: 8
by jagerbond » Tue Mar 08, 2011 2:19 pm

First post

Per customer request... IMO the nicest 520 we've made.

Last post

Wow mike, that is one helluva rattlecan job. You clearcoat it?

8 Replies

3772 Views

Last post by JDP12
Thu Mar 24, 2011 9:19 pm
My first BigGun :D

Last post by mark.f
Replies: 20
by wyz2285 » Sat Mar 12, 2011 1:12 pm
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First post

Hello everybody
Well I have been planing on building a decent spudgun for about a month ago when I was bored with airsoft guns, but didn´t have time...

Last post

None taken here as well, and I don't think a douche bag would be capable of building some of the things you have. :wink:
20 Replies

6683 Views

Last post by mark.f
Wed Mar 16, 2011 8:36 am
TAC 6 How to video

Last post by chenslee
Replies: 38
by chenslee » Mon Jan 24, 2011 11:35 am
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Haven't posted in a while. This is the instruction video for the what evolved from the 'ol contest cannon (which can barely be seen in the upper...

Last post

I have a saying, Inventor fixes 100 problems and makes 99 more. I spend about 20 minutes a day cussing because that infernal program is such a...
38 Replies

17029 Views

Last post by chenslee
Tue Mar 15, 2011 8:12 am
Propane torch

Last post by saefroch
Replies: 6
by jbeeson » Wed Feb 23, 2011 12:00 am

First post

what is the best way to attach a propane canister to the direct injection system. i know you can hack off and thread the torch but is there an...

Last post

Picture please? It's most likely you're just not trying hard enough. Using a 10 pipe wrench and an adjustable wrench I just kept twisting until it...

6 Replies

3485 Views

Last post by saefroch
Mon Mar 14, 2011 7:15 am
mini combustion airsoft pistol

Last post by wyz2285
Replies: 4
by urgle the danish cow » Fri Mar 04, 2011 2:58 pm

First post

i wasnt sure to post this with airsoft or combustion

anyway i was just bored at home a month ago (but i had trouble getting the video online until...

Last post

cant belive this little thing works :shock: with spary fueling
the chamber is very small :roll:

4 Replies

3096 Views

Last post by wyz2285
Thu Mar 10, 2011 5:16 pm
Metal Chamber and Ignition

Last post by Lockednloaded
Replies: 8
by Grignacke » Mon Mar 07, 2011 11:20 pm

First post

Hey guys, have you all ever had problems with steel chambers and high voltage ignition sources? What sort of insulation do you use?

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I'm using an NPT spark plug for my hybrid ATM, you just have to look around for some standard threaded sparkplugs if you don't want to use epoxy

8 Replies

3331 Views

Last post by Lockednloaded
Thu Mar 10, 2011 11:52 am
My mini cannons i built

Last post by jrrdw
Replies: 9
by KingKyro » Mon Sep 13, 2010 12:59 am

First post

these are the mini potato guns i designed and built. All are combustion powered, use a campfire lighter for spark and hairspray for fuel.

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Making non-ghetto guns :lol:

:D

Or you can try metering your fuel .

I agree with this more so then how ghetto it's made, at least to a certain...

9 Replies

6603 Views

Last post by jrrdw
Wed Mar 09, 2011 6:57 am
mk 5

Last post by Crna Legija
Replies: 9
by domino » Sat Mar 05, 2011 9:09 am

First post

barrel is 29 long and 1.5 wide
chamber is 18 long and 3 wide

Could the chamber be too long? its unreliable to say the least. But when it does work,...

Last post

As tech said, put something in the chamber and shake it around. Cutting down the chamber may help but if it doesn't then you will have a less...

9 Replies

2805 Views

Last post by Crna Legija
Sun Mar 06, 2011 10:15 am
pvc dwv

Last post by jimmy101
Replies: 10
by jbeeson » Sun Feb 27, 2011 10:05 pm

First post

i have been look around and all the pvc i can find is dwv fittings and cellular core pipe. any suggestions? how bad would it be to use those?

Last post

Cell core pipe is fine for even an advanced combustion gun, as long as it is at 1X. It'll handle the ~130 PSIG max pressure that a jammed round would...

10 Replies

3044 Views

Last post by jimmy101
Tue Mar 01, 2011 7:39 pm
direct propane injection

Last post by mark.f
Replies: 1
by jbeeson » Sat Feb 26, 2011 11:41 pm

First post

three questions:
1) what type of propane regulator do you recomend
2) how do propane regulators work
3) how much pressure is present in a propane...

Last post

1.) I recommend a simple air regulator. Accurate enough for a combustion propane meter and cheap.
2.) Regulators work by a spring-loaded diaphragm....

1 Replies

1475 Views

Last post by mark.f
Sun Feb 27, 2011 12:16 am
how to??

Last post by jackssmirkingrevenge
Replies: 6
by jdty » Fri Feb 25, 2011 1:01 am

First post

im moving up in the world, up from hairspray to mapp gas. however i dont understand how to build the fuel metering system properly. if you have the...

Last post

The responses are all good, many links to very well done methods of metering. But for a start, just consider using a syringe, cheap, easy and...

6 Replies

2373 Views

Last post by jackssmirkingrevenge
Sat Feb 26, 2011 12:20 am
Safety Switch

Last post by Sonicboom101
Replies: 9
by Sonicboom101 » Tue Feb 22, 2011 6:39 pm

First post

Hey guys. I have a real quick question, so I have an electric bbq ignitor it's pretty much the same one featured in this thread. Link:

Anyways. I...

Last post

Thanks for the help, for people that did help. For the rest of you that were complaining about my diagram. No offense but your seriously off topic,...

9 Replies

3598 Views

Last post by Sonicboom101
Wed Feb 23, 2011 4:57 pm
Help with a BL stainless steel

Last post by Moonbogg
Replies: 9
by jdty » Fri Feb 18, 2011 10:15 pm

First post

hey there,
have made a few simple cannons in the past. all combustion. i dont like messing with compressed air as its not very mobile.

my last...

Last post

A cannon the size of a BL made of stainless would be way too heavy for shoulder fire. If you want a beast of a cannon like a BL in stainless for...

9 Replies

3239 Views

Last post by Moonbogg
Mon Feb 21, 2011 5:33 pm
Gasoline as a fuel?

Last post by tigeraceray
Replies: 17
by tigeraceray » Sun Feb 20, 2011 1:31 am
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I'm working on my next cannon that I plan to make sort of like a artillery cannon/bazooka (bipod legs on the barrel extend to different degrees like...

Last post

Haha trust me, my designs have come a long way from my first one about 3 years ago. Then it was a 2 qt water bottle with the top cut off and a hole...
17 Replies

9257 Views

Last post by tigeraceray
Sun Feb 20, 2011 2:41 pm
Stun Gun Help

Last post by jimmy101
Replies: 5
by tylermeredyk » Fri Feb 18, 2011 5:54 pm

First post

i was wondering if i can some how get a stun gun circuit however i do live in new york where they are illegal... willing to pay through paypal

Last post

I seen the sparker on launchpotatos but thats in epoxy im looking for something i can mount on a pcb and controlled with a microprocessor
A $10...

5 Replies

2850 Views

Last post by jimmy101
Fri Feb 18, 2011 9:58 pm
Volume Calculation

Last post by Sonicboom101
Replies: 6
by Sonicboom101 » Tue Feb 15, 2011 1:44 pm

First post

Hello. I've recently built myself a new cannon. This cannon has a smaller chamber and is more compact. I'm going with the syringe method of fueling...

Last post

Thanks for the help!

6 Replies

2334 Views

Last post by Sonicboom101
Tue Feb 15, 2011 3:35 pm
Battery charger as DC transformer

Last post by saefroch
Replies: 8
by saefroch » Thu Feb 10, 2011 4:34 pm

First post

Is it possible to use a battery charger as a DC transformer? I just replaced one, and I'm wondering if I could use the old one as a step-up...

Last post

Ahhhhhhh thanks, that helps a lot.

8 Replies

2499 Views

Last post by saefroch
Fri Feb 11, 2011 8:20 pm
N33b who needs some pro help

Last post by shmoesus
Replies: 22
by shmoesus » Wed Feb 09, 2011 2:32 am
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Hello all, im new to this place and I have many questions but I will ask this, I have made a few potato guns made of PVC and the grill ignition and...

Last post

Ah indeed well I have finished my plans for my new potato gun and I would be more than happy to share them with everybody but I guess I can't put...
22 Replies

7785 Views

Last post by shmoesus
Thu Feb 10, 2011 1:04 pm
Check out my first spud gun!

Last post by AnotherSnappedLine
Replies: 16
by 4ourLoko » Mon Jan 03, 2011 4:25 pm
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Hello everyone, 1st post here at spudfiles and I want to show you guys the first spud gun I've ever built. It is a spray and pray as some would say...

Last post

That's awesome! My first looked just like it(minus the flip camera)

Have you tried putting the igniter inside? It looks 100 times better.
16 Replies

7525 Views

Last post by AnotherSnappedLine
Tue Feb 08, 2011 10:55 pm
would this work for my spudgun?

Last post by SpudBlaster15
Replies: 37
by spud-freak » Thu Feb 03, 2011 4:44 pm
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My Question is..would this work?
thx

Last post

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

12271 Views

Last post by SpudBlaster15
Sun Feb 06, 2011 6:10 pm
Hand Cannon

Last post by Dominate
Replies: 3
by Dominate » Sun Jan 30, 2011 9:58 pm

First post

Just a quick hello, this is my first post.
Heres my first project:
01-29-11
I've wanted to build a potato gun since I could remember. I started...

Last post

:D

nice cannon!

Thanks!

linuxexorcist,
My 3/4 er works good, I don't remember even having a misfire. I love it too, it seems like there's a...

3 Replies

2381 Views

Last post by Dominate
Mon Jan 31, 2011 10:34 am
New to the Forum, New Project

Last post by charre
Replies: 19
by charre » Sun Jan 30, 2011 1:28 pm
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Hi all, I'm breaking into the forums with a new projects over the course of the next few weeks. I'm designing a not-quite-mini combustion.

I'm...

Last post

I had an idea to fire steel darts in a foam sabot made from polyurethane foam. Other than that i liked the burnt latke guy's idea to fire wooden...
19 Replies

5684 Views

Last post by charre
Sun Jan 30, 2011 11:38 pm

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