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SpudFiles Potato Gun Commercial

Last post by quinn whitsitt
Posted in Combustion Cannons
Replies: 15
by PCGUY » Tue Oct 29, 2013 10:54 pm » in Combustion Cannons
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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...

Last post

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

1079607 Views

Last post by quinn whitsitt
Fri Feb 09, 2024 2:38 pm
Sketchup Model Library

Last post by mrfoo
Replies: 152
by dewey-1 » Tue Mar 24, 2009 12:12 pm
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First post

Over the last year I have made a lot of CAD drawings for
Pneumatic Launchers.

I have imported several of them into Sketchup format.
Here is the link...

Last post

Bollocks. Dewey put them out in the hope that, and I quote

some of you can make use of these!

There's absolutely nothing wrong with using them,...
152 Replies

553255 Views

Last post by mrfoo
Mon May 20, 2024 11:17 am
Solvent Welding Course Recommended For ALL

Last post by Technician1002
Replies: 46
by sgort87 » Fri Aug 04, 2006 8:18 pm
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Originally posted by DR on the Spudtech forums:

IPEX Solvent Cements ONLINE Course can be found here:

It is recommended that you download and...

Last post

Your earlier post about just scoring the surface, has me wondering if that is why OATEY makes a brush tool that scores the inside of a fitting, and...
46 Replies

300262 Views

Last post by Technician1002
Thu Dec 02, 2010 5:04 pm

Topics

Soundmuffler for full auto combustion.Need input..

Last post by D_Hall
Replies: 6
by Brian the brain » Fri Dec 14, 2012 11:41 am

First post

I was kinda hoping you guys could help me out.

I need a muffler that fits inside of a 42mm pipe.
It needs to be heat resistant, as it will be...

Last post

A series of stacked basket diffusers?

6 Replies

2513 Views

Last post by D_Hall
Sat Dec 22, 2012 7:16 pm
Questions about a blow-forward bolt

Last post by Brian the brain
Replies: 12
by acs2997 » Thu Nov 29, 2012 4:46 pm

First post

I'm in the middle of designing a semi auto pneumatic gun and to do so, I was considering using a blow-forward bolt but after looking over several...

Last post

have also been looking into a way to connect my air tank to a hopper, but in my design, it seems my golf ball would fall down before the gun could...

12 Replies

9189 Views

Last post by Brian the brain
Fri Dec 14, 2012 11:31 am
Youtube Account presentation

Last post by DasAbonnent

by DasAbonnent » Thu Dec 13, 2012 8:36 am

Hey=)
i've got a (new) youtube channel, on which(right english?) i'll upload all my videos again. They're containing:

- 10+ Videos about my homemade...

0 Replies

4637 Views

Last post by DasAbonnent
Thu Dec 13, 2012 8:36 am
These sabots work perfectly with Type L 1/2 copper pipe

Last post by whoa044

by whoa044 » Wed Dec 12, 2012 7:43 pm

50 caliber lead ammo is great, but doesn't fit perfectly in any barrel AFAIK. For those using type L 1/2 copper pipe, you can buy sabots from...

0 Replies

4596 Views

Last post by whoa044
Wed Dec 12, 2012 7:43 pm
Source for Black Teflon Tape

Last post by jackssmirkingrevenge
Replies: 4
by garybdavis » Mon Dec 10, 2012 12:05 pm

First post

Looking for a good on-line source for the black tatical tape . Some of the paint ball places sell it, but it seems to be really expensive. Anyone...

Last post

this stuff? doesn't seem too pricey to be honest.

4 Replies

2805 Views

Last post by jackssmirkingrevenge
Tue Dec 11, 2012 1:31 am
How to: QEV/piston valve (explicit)

Last post by Crna Legija
Replies: 12
by wyz2285 » Tue Nov 27, 2012 4:39 pm

First post

I think I have mentioned everything people need to know about making a 1/2 QEV or a 3/4 piston valve...
The piston valve is the same as here , I...

Last post

Also, not sure how to shorten URLs when posting heh.

type [url=the url, then end it with no spaces between brackets

12 Replies

12093 Views

Last post by Crna Legija
Mon Dec 10, 2012 2:52 am
Bluetooth remote ignator

Last post by ferret_guy
Replies: 13
by ferret_guy » Thu Dec 06, 2012 7:04 pm

First post

How interested would people be if got a design that I created for a bluetooth remote control device that could switch up to 24v? If enough people are...

Last post

I never asked you to find them for but thank you for doing so anyway

13 Replies

3836 Views

Last post by ferret_guy
Sun Dec 09, 2012 3:16 pm
Igniter help!!!

Last post by jimmy101
Replies: 3
by Gemma » Thu Dec 06, 2012 5:11 pm

First post

I am doing this for a project for physics worth 600 points. We built what seemed a pretty solid cannon out pvc however when time for launching came...

Last post

Also check that you are actually getting a spark inside the chamber. Just because the piezo will zap you doesn't mean it is jumping the spark gap....

3 Replies

1585 Views

Last post by jimmy101
Fri Dec 07, 2012 2:57 pm
Gatling gun

Last post by acs2997
Replies: 20
by stuffbuilder » Wed Aug 31, 2011 11:13 pm
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I had an idea for a rapid-fire Gatling gun. It would need a sealed rotating joint and a check valve for each chamber/barrel assembly (there would be...

Last post

Well now that it's 2012, chances are you don't really need anymore input, but during my aimless wanderings on spudfiles, I saw this and couldn't...
20 Replies

10066 Views

Last post by acs2997
Thu Nov 29, 2012 10:10 pm
why can't I get a better result when firing?

Last post by jsefcik
Replies: 4
by wdotten » Tue Nov 27, 2012 9:42 pm

First post

I just made a standard spud gun for the first time but I can't seem to get the right fuel to air mix, it seems to be very unreliable, I use propane...

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personally, a fan will be the best improvment,i still have a spray and pray i put in a fan and best thing i ever did, carb cleaner !!!

4 Replies

4647 Views

Last post by jsefcik
Wed Nov 28, 2012 10:02 pm
I'm back!- with machining abilities

Last post by saefroch
Replies: 8
by saefroch » Mon Nov 26, 2012 10:04 am

First post

Hello all! It's been a long long time since I posted here or did much spudding-related. I'm now in college, and have access to a pretty well-equipped...

Last post

It's not a CNC lathe, oh how I wish it were.

I'm going to stop by the shop tomorrow (today, actually it's past midnight) and try to consult with the...

8 Replies

2811 Views

Last post by saefroch
Tue Nov 27, 2012 1:30 am
Coax idea

Last post by jackssmirkingrevenge
Replies: 7
by Someone89 » Wed Nov 21, 2012 8:22 pm

First post

Evenin' all.

Came up with this idea for a coaxial arrangement whilst wondering with to do with my spent 88g Co2 Cartridges

The socket will have...

Last post

not rocket sperm as they may initially appear

:D :D :D

As I said, if it's well done it should hold well, even without the bolts.

Just occured to...

7 Replies

3228 Views

Last post by jackssmirkingrevenge
Fri Nov 23, 2012 3:26 pm
Harnessing DDT (deflagration to detonation transition)

Last post by jackssmirkingrevenge
Replies: 18
by ferret_guy » Wed Nov 14, 2012 2:07 pm
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I was wondering what people know about DDT, I found several papers on the subject including this one which attempts to model an acetylene–air mixture...

Last post

Security would be guys with guns guarding the tunnel to make sure no unauthorized people were there or something.

Safety in Spanish: seguridad...
18 Replies

8363 Views

Last post by jackssmirkingrevenge
Mon Nov 19, 2012 3:38 am
How to do weapons control tests with safety? RJB INDUSTRIES

Last post by RJB INDUSTRIES
Replies: 17
by RJB INDUSTRIES » Thu Aug 09, 2012 7:33 pm
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First post

Main Features and Specifications :

-Fan for gases extraction;
-Internal spotlight;
-Safety light flashing LED;
-230V input;
-Main material:...

Last post

Ah Ah
I think it could suport any kind of nuclear bomb

RJB INDUSTRIES
17 Replies

10966 Views

Last post by RJB INDUSTRIES
Fri Nov 16, 2012 1:57 pm
looking for help understanding arduinos

Last post by POLAND_SPUD
Replies: 2
by JDP12 » Tue Nov 13, 2012 11:25 pm

First post

Hey all,

The concept of electronically fired guns has started to pique my interest, and arduino's seem to be very popular... I've looked on their...

Last post

Everything is on their site - seriously - you didn't browse it for long enough

Start with these ->
get yourself arduino board and do them......

2 Replies

1691 Views

Last post by POLAND_SPUD
Wed Nov 14, 2012 9:03 am
Valve to replace burst disk

Last post by Jolly Roger
Replies: 13
by Jolly Roger » Sat Nov 10, 2012 2:27 am

First post

Has anyone ever come upon any inline pressure release valves that could replace a burst disk?

Last post

Yeah both of those ideas should work in most setups. The second one does seem quite complex though, is that of a paintball marker?

The only thing is...

13 Replies

7373 Views

Last post by Jolly Roger
Wed Nov 14, 2012 6:12 am
Combustion or Pneumatic airsoft cannon

Last post by Spudrookie
Replies: 7
by battlelava » Sun Feb 19, 2012 11:31 pm

First post

So I've been wanting to build an air soft cannon for a while now, but I can't determine what to use to power it, so for the past 2 weeks I've been...

Last post

The decibels of a combustion really depends. For power comparison you should download HGDT and set the burst disk failure to 0 and the ign num to 1...

7 Replies

4348 Views

Last post by Spudrookie
Thu Nov 08, 2012 2:35 pm
sabots - cheap, quick and easy method

Last post by jackssmirkingrevenge
Replies: 9
by jackssmirkingrevenge » Thu Dec 15, 2011 11:22 pm

First post

A little picture tutorial on how to make lightweight yet strong sabots to fire subcalbre projectiles, enjoy:

Last post

Sabots that fly apart before leaving the muzzle aren't exactly ideal ;)

9 Replies

7649 Views

Last post by jackssmirkingrevenge
Tue Nov 06, 2012 4:17 pm
Thank you for this website, i'm glad i found it

Last post by Brian the brain
Replies: 1
by Marseyus » Tue Nov 06, 2012 10:24 am

First post

I'm not new to potato cannons, but recently i've been wanting to find some information on spud gun competitions. Well Started surfing a little bit...

Last post

Thank you for clearing that up.. :D

I think just about every member feels like this at first.
I sure did.
Although in my case I'm missing those 100...

1 Replies

1297 Views

Last post by Brian the brain
Tue Nov 06, 2012 12:44 pm
Air tank idea.

Last post by Marseyus
Replies: 14
by warhead052 » Fri Apr 15, 2011 11:18 am

First post

Ok who knows what those metal water bottles look like? Anyone know what I am talking about? If you do, good for you. What if you put a schrader valve...

Last post

Like the guy said earlier, paintball tanks, but HPA paintball tanks are even better, depending on what pressure your trying to get to. An HPA tank...

14 Replies

6045 Views

Last post by Marseyus
Tue Nov 06, 2012 11:26 am
PVC layered in kevlar/carbon fiber?

Last post by Marseyus
Replies: 18
by kjjohn » Sun Mar 28, 2010 8:44 pm
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I came to thinking, for things like a hybrid piston valve or other complex valves or custom parts, it is a lot easier to make them out of PVC instead...

Last post

I know this is an old post, but i love physics and since i'm new i figured i could try to help out some.

Everyone is right about coating the...
18 Replies

17857 Views

Last post by Marseyus
Tue Nov 06, 2012 11:09 am
Competition listings

Last post by Marseyus

by Marseyus » Tue Nov 06, 2012 10:32 am

Need some help, which i think would be good for others, or maybe i haven't searched the forums hard enough. But is there anywhere either on this site...

0 Replies

4941 Views

Last post by Marseyus
Tue Nov 06, 2012 10:32 am
Bug-A-Salt

Last post by archie370
Replies: 8
by PVC Arsenal 17 » Sun Sep 02, 2012 11:51 am

First post

Sorry if this is a repost... saw it today in a facebook ad.

I think it's absolutely hilarious and I'm going to try making my own. It's a gun that...

Last post

wow thats cool ... is it accurate ?

8 Replies

7191 Views

Last post by archie370
Mon Nov 05, 2012 8:17 pm
How to make an electrolysis machine

Last post by chaos cannon
Replies: 76
by Killjoy » Mon May 21, 2007 11:56 pm
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So its been the first 4 days of my summer, and I'm already bored out of my mind, so today I figured I would rebuild my electrolysis machine into a...

Last post

Ok back to the original subject of this thread. A good dc power supply that lots of people use is a power supply from a computer. Im sure u already...
76 Replies

71928 Views

Last post by chaos cannon
Mon Oct 29, 2012 1:02 pm
Neat little stovetop alloy

Last post by chaos cannon
Replies: 10
by Fnord » Fri Jan 13, 2012 7:50 pm

First post

I just saw this earlier and had to try it out.
Stronger than cast aluminum, a little lighter and tougher than cast iron, and you can make it on a hot...

Last post

finally i find a thread that i can talk with some authority. ive been working in a foundry for over a year and doing metal casting as a hobby for...

10 Replies

4863 Views

Last post by chaos cannon
Mon Oct 29, 2012 11:38 am

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