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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

660891 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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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

387487 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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First post

Originally posted by DR on the Spudtech forums:

IPEX Solvent Cements ONLINE Course can be found here:

It is recommended that you download and...

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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

202854 Views

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

Topics

light bulb round

Last post by POLAND_SPUD
Replies: 20
by spudy buddy » Wed Jan 16, 2008 11:36 pm
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i was just wondering if someone has don this but why not take a laser pointer case(fits perfectly in 1/2 pvc) take out the stuff, then get one of...

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ok as I promised some pics of my tracer ammo.... better late than never :?

As I said before to build this all you have to do is to remove the...
20 Replies

7115 Views

Last post by POLAND_SPUD
Sun Jan 20, 2008 10:35 am
copper tube

Last post by Zen///
Replies: 6
by sinper2006 » Thu Jan 17, 2008 11:11 pm

First post

hey i only need about 2 meters of copper tube but at the hardware they only sell the whole length i'm just wondering where i can buy it for the...

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In the US, copper is at record highs,

It takes 1.3 cents of copper to make a penny...

6 Replies

2952 Views

Last post by Zen///
Sun Jan 20, 2008 3:56 am
3.3" pipe

Last post by MrCrowley
Replies: 8
by brogdenlaxmiddie » Sat Jan 19, 2008 8:52 pm

First post

Ayyy! anyone know how to get some 3 1/3 pipe? make some?

Last post

Good choice sir :)

8 Replies

1387 Views

Last post by MrCrowley
Sat Jan 19, 2008 10:54 pm
A nicer way to install a Schrader valve

Last post by sjog
Replies: 27
by dongfang » Tue Jul 24, 2007 3:23 pm
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Hi,

I had this idea: Put a Schrader valve into some 1/8 / 1/4 NPT hardware, instead of installing it directly into a plastic cannon chamber.

Direct...
27 Replies

38240 Views

Last post by sjog
Fri Jan 18, 2008 9:52 pm
25ml sprinkler valve and 40 ml barrel loss of POWER ?

Last post by Ragnarok
Replies: 6
by chicagobears10 » Fri Jan 18, 2008 1:47 pm

First post

Im building my second potato gun and i have already got my 25mm sprinkler valve finished because i was goin with a 25 mm barrel

Now i want a 40ml...

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No, there will be no loss of energy, you'll probably actually gain power because of the larger bore, but assuming you'll have heavier ammo, you will...

6 Replies

1757 Views

Last post by Ragnarok
Fri Jan 18, 2008 6:54 pm
Simple version of GGDT, is it worth it?

Last post by potatoflinger
Replies: 13
by potatoflinger » Tue Jan 15, 2008 8:43 pm

First post

Do you guys (or girls) think that it would be worth it to make a simpler version of GGDT? My dad has taught me quite a bit about computer programing...

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True, I hadn't exactly thought out the entire thing when I made the decision to try it :oops: I think I will do what clide said to do, it makes a lot...

13 Replies

2915 Views

Last post by potatoflinger
Thu Jan 17, 2008 10:19 pm
How-To Hollow Based Lead Slugs

Last post by judgment_arms
Replies: 13
by rna_duelers » Thu Jan 17, 2008 12:34 am

First post

I've been making a heap of rounds for my new copper musket and I have perfected a way to make Hollowed Based Slugs.The hollow base is supposed to...

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Drilling out a cylinder and getting the hole centered would be almost too much hassle for what it’s worth, particularly if it’s for a smoothbore....

13 Replies

6958 Views

Last post by judgment_arms
Thu Jan 17, 2008 11:24 am
Diaphragm Piston

Last post by Hubb
Replies: 9
by frocksie » Wed Jan 16, 2008 5:41 pm

First post

I was thinking today about pistons and diaphragms, when I started thinking about combining the two, due to the popular belief that diaphragms open...

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Hubb,
the way I saw it, when the pilot valve is opened, the diaphram will open, and then the piston.

I got ya. In order for the diaphragm to open...

9 Replies

2572 Views

Last post by Hubb
Thu Jan 17, 2008 5:51 am
Primer Bubbles???

Last post by spudy buddy
Replies: 21
by spudy buddy » Mon Jan 14, 2008 11:40 pm
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ok, i primed and glued my cannon and let it dry for 24 h like sugested. when i started testing it i noticed that right where the fiting and the pipe...

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no i'm not gona use solid propelants(against forum rules) cause i dont want that hapaning to me.

i like hot glu but my gun doesn't get it hot enough...
21 Replies

5511 Views

Last post by spudy buddy
Wed Jan 16, 2008 11:41 pm
How far can I go and not break the law?

Last post by Eddbot
Replies: 22
by zephir » Mon Jan 14, 2008 2:28 am
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I've been working on my first spud gun for the last three years. So far, its been a half-hearted effort. Around December I started getting back into...

Last post

gory, me like :violent2:
22 Replies

6872 Views

Last post by Eddbot
Wed Jan 16, 2008 8:49 pm
C:B Ratio Calculator

Last post by VooDooCC
Replies: 7
by VooDooCC » Tue Jan 15, 2008 1:15 am

First post

I put in the basic formulas for myself, and then I got to thinking that some other people may find it as a useful tool, so here is my Calculator made...

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I noticed one problem with it, when using 2 for the barrel, type in the true diameter which is more like 2.1 I saw a site once with the specs for all...

7 Replies

2592 Views

Last post by VooDooCC
Wed Jan 16, 2008 5:23 pm
Musket Rounds

Last post by rna_duelers
Replies: 18
by rna_duelers » Wed Jan 16, 2008 2:14 am
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I was waiting for the glue to dry on my Copper Musket and I had some time so I figured I'd make some ammunition for it.I made two kinds for it in a...

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@Hotwired - My dad has a background in Glass working and Lead lighting,so I have copious amounts of lead lying around and I've made my own little way...
18 Replies

3675 Views

Last post by rna_duelers
Wed Jan 16, 2008 6:01 am
Remote DunkTank

Last post by CS
Replies: 4
by dapaintballer331 » Sun Jan 13, 2008 4:39 am

First post

I decided I had nothing better to do that figure out a way to remotely trigger my gun, and I mean remotely.

Well I got a small wireless webserver...

Last post

Regardless of the dangers, the term gun can cause quite a hysteria. As well people get very mad when they are embraced in public. So they could then...

4 Replies

1855 Views

Last post by CS
Wed Jan 16, 2008 1:55 am
auto-piston v4.0 - the bullpup

Last post by jackssmirkingrevenge
Replies: 98
by SPG » Wed Jan 02, 2008 9:04 am
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Yes it's yet another auto BB theory which will

1. Probably not get made
2. Probably have a fault even if it does get made
But in the spirit of...

Last post

*bows head in shame*

I had wanted to mention it before but hadn't found the right opportunity, ah well. How the mighty are fallen *sniffle*
98 Replies

24136 Views

Last post by jackssmirkingrevenge
Wed Jan 16, 2008 1:49 am
How to Make an Electrolysis Machine V.2

Last post by frogy
Replies: 24
by Killjoy » Sun Nov 11, 2007 4:37 am
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Well after a recent interest in an electrolysis machine (located here ), I decided it was time to rebuild mine (or to be more percise, make a totally...

Last post

I've say a portable Hoffman cell make from 3 Tee's and a few male\female adapters...

It really matters if you want to meter H2 \ O2 together or...
24 Replies

19322 Views

Last post by frogy
Tue Jan 15, 2008 10:00 pm
im pissed

Last post by bigbob12345
Replies: 22
by JDAX23 » Mon Jan 14, 2008 9:51 pm
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i have gone all over town trying to find a schrader valve, and have yet to come across one...thats the only thing stopping me from testing/using my...

Last post

I get them from ace hardware but auto parts stores carry them too.
22 Replies

7216 Views

Last post by bigbob12345
Tue Jan 15, 2008 7:19 pm
What's your Holy Grail of Spudguns?

Last post by Ragnarok
Replies: 133
by SPG » Tue Jan 01, 2008 6:03 am
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I think we all have a Holy Grail we're trying to build or see built. JSR has his continuing search for a BBMG with power and efficiency, I have my...

Last post

@Nova: I make it about 850 yards.

@SB15: Thanks for the vote of confidence.

I'll see if I can put theory into practise, if I can find an area where...
133 Replies

30728 Views

Last post by Ragnarok
Tue Jan 15, 2008 3:47 pm
piston question

Last post by spudy buddy
Replies: 74
by spudy buddy » Sun Jan 06, 2008 1:44 am
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ok i looked around but i still need help. i get how pistons work but not what size to make them cause i don't know where they seal. do pistons seal...

Last post

ya it wouldn't hurt to make it more.

the threaded caps ive seen thread into something smaler than the barrel like this:

also how hard is brakeline?...
74 Replies

18616 Views

Last post by spudy buddy
Mon Jan 14, 2008 7:20 pm
Pump marble gun v2.0

Last post by Hubb
Replies: 1
by Gunner » Sun Jan 13, 2008 12:22 pm

First post

Now I have changed my previous design that used hammer valve and this new design uses GEV as valve.The number 1 is main reservoir that holds in about...

Last post

3000(main reservoir pressure)*68(main reservoir volume)/100(secondary pressure) = 2040cu in
2040 - 68(main reservoir pressure) = 1972

150(secondary...

1 Replies

1066 Views

Last post by Hubb
Sun Jan 13, 2008 1:39 pm
Threads cracked under pressure?

Last post by daberno123
Replies: 9
by daberno123 » Sat Jan 12, 2008 5:36 pm

First post

Alright so i just finished my piston valve and i screwed it onto my cannon and began to pressurize it. I left the room and came back when it was at...

Last post

Yeah clide i probably overtightened it since i had the tee on top and was gripping both ends to screw it on i had extra leverage on it. Not sure why...

9 Replies

1845 Views

Last post by daberno123
Sun Jan 13, 2008 1:32 pm
Safety of Fittings

Last post by spudy buddy
Replies: 4
by TheTrooper » Sun Jan 13, 2008 2:03 am

First post

Okay, so i was gluing together my new pneumatic (which is now done, will post soon) when i accidently glued a 45* angle fitting on backwards(the side...

Last post

no you wont but like spudblaster said if it built up than gently sand it off.

4 Replies

1376 Views

Last post by spudy buddy
Sun Jan 13, 2008 3:05 am
2008 United Nations Year Of The Spud!

Last post by Ragnarok
Replies: 19
by rna_duelers » Fri Jan 11, 2008 12:46 am
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The Humble Spud is this years United Nations Icon,Instead of the Year Of Peace(1986),or Year Of Education(1970) or something else that is Meaningful...

Last post

I don't know, less likely than the topic being filled with double entendres or innuendos, but if you'd told me that potato fruit would get a mention,...
19 Replies

3906 Views

Last post by Ragnarok
Sat Jan 12, 2008 6:01 pm
dart gun

Last post by clide
Replies: 1
by jon_89 » Sat Jan 12, 2008 2:24 am

First post

any idea how this dart gun works? www.ayamedesign.com/images/portfolio-dart2.jpg If you scroll down there is a 3d image under 3d tool.

Last post

Looks like it is basically a sear released blow forward bolt that just blows forward the entire barrel instead of a bolt...if that makes any sense....

1 Replies

925 Views

Last post by clide
Sat Jan 12, 2008 2:19 pm
Pump design.

Last post by Hawkeye
Replies: 24
by ALIHISGREAT » Mon Jan 07, 2008 9:31 am
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well this is my pump design which i need some advice on, firstly is the basic design satisfactory? i will be using 22mm copper as the body and 15mm...

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I mentioned a gas lift as a possible source for a pump body. You would need to replace the piston and I don't think the rod of the gas lift is long...
24 Replies

6793 Views

Last post by Hawkeye
Sat Jan 12, 2008 8:11 am
recent trend of design

Last post by iknowmy3tables

by iknowmy3tables » Fri Jan 11, 2008 11:17 pm

since clide's hear design there has been a trend twords aiming at an intergrated valve/bolt designs with possibility in auto loading
specifically...

0 Replies

1789 Views

Last post by iknowmy3tables
Fri Jan 11, 2008 11:17 pm

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