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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

659295 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

387030 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

202427 Views

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

Topics

burst disk help

Last post by pat123
Replies: 16
by pat123 » Sun Mar 23, 2008 7:35 pm
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I finished everything on my hybrid the other morning at 4:30, the only thing wrong with it is that when i try to put my aluminum foil burst disk in...

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I tried cutting it to shape it didn't work. the wierd thing is that it works almost every time with air but never with propane.
16 Replies

2027 Views

Last post by pat123
Mon Mar 24, 2008 5:26 pm
New Valve for Hybird...Maybe

Last post by Jared Haehnel
Replies: 4
by Jared Haehnel » Fri Mar 21, 2008 3:35 pm

First post

So I was brain storming new Ideas and I did a few searches but nothing came up besides stuff in pneumatics.
I was thinking on using a piston valve...

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Dang just when you think you have a good idea some else has already taken it... 8)
Thanks for the info....

4 Replies

1243 Views

Last post by Jared Haehnel
Mon Mar 24, 2008 6:58 am
Answer to a question that has plagued mankind for centuries

Last post by watto
Replies: 22
by watto » Wed Mar 19, 2008 12:36 am
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What does happen if you shoot a handful of pasta at a light globe?

Last post

So rice and candles make you think of masturbation?

Since I had an italian song for the pasta then I thought a song that says japanese a lot might...
22 Replies

5464 Views

Last post by watto
Sat Mar 22, 2008 9:48 pm
Another Semi-Auto Idea (updated)

Last post by Hubb
Replies: 27
by Hubb » Wed Sep 26, 2007 12:04 pm
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While tinkering with my Tippmann 98 the other day I got to thinking. Since Tippmann uses a hammer to open their valve, why couldn't I.

Anyway, the...

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Well, it is just a brief (very brief) estimate. I know it will be different, but that gives me a start.

In the original posts, I mentioned having a...
27 Replies

6577 Views

Last post by Hubb
Sat Mar 22, 2008 4:52 pm
strongest gun on the site?

Last post by DYI
Replies: 70
by Pilgor » Mon Mar 17, 2008 6:58 pm
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I know there's no definitive answer, but what is the strongest cannon on the site?

Last post

Search for posts containing SCTBDCv1.5 by DYI in the Pneumatic Cannon Showcase. Since no one really uses the full name, it'll narrow down the search...
70 Replies

18207 Views

Last post by DYI
Sat Mar 22, 2008 8:37 am
silencer questions

Last post by jackssmirkingrevenge
Replies: 17
by Pilgor » Wed Mar 19, 2008 2:39 pm
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would a silencer reduce the velocity of the projectile?
(short question)

Last post

Read your own link. Pay attention to the section titled wipes.

Indeed, if the projectile is making physical contact with the suppressor, then it's...
17 Replies

5853 Views

Last post by jackssmirkingrevenge
Sat Mar 22, 2008 3:28 am
Look at how I added this!

Last post by jackssmirkingrevenge
Replies: 12
by scottcrete » Sat Mar 22, 2008 12:06 am

First post

This shows you how I added lights..
first i got a 4 inch to 2 inch flush reducer.. since my barrel was 2 inches.. then i got a 4 inch to 3 inch...

Last post

Pimp my spudgun, excellent :D

12 Replies

7867 Views

Last post by jackssmirkingrevenge
Sat Mar 22, 2008 3:21 am
Simple Regulator

Last post by psycix
Replies: 7
by Flash » Wed Mar 19, 2008 11:34 pm

First post

Based on my corrected knowledge of pressure and force, I designed an easy to build regulator. Most parts can be bought at a regular Home Depot or...

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Yup only some outward force
But because your dimple is omni-symmetrical it neutralizes completely.
If the dimple would be assymetrical you would have...

7 Replies

2457 Views

Last post by psycix
Fri Mar 21, 2008 2:43 pm
Seperate glued PVC?

Last post by iknowmy3tables
Replies: 15
by rcman50166 » Wed Mar 19, 2008 12:01 pm
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Is there a way to seperate glued PVC. Yes I am talking about the standard PVC cement that is commonly used. A quick google search says there isn't,...

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do you have any hole saw drill bits? look for your biggest one, it might me a 3 1/2 hole saw bit, if you can get the bit to start drilling inline the...
15 Replies

4542 Views

Last post by iknowmy3tables
Thu Mar 20, 2008 9:54 pm
Burst disk idea

Last post by FeLeX
Replies: 15
by fatcat » Tue Mar 18, 2008 1:08 pm
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I was going to keep this valve under wraps untill I could build a cannon with it but with the loss of a place to shoot, (I moved from the country...

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Thanks I was thinking about making a large bore pneumatic using this type of valve. I love kickback =)
15 Replies

5729 Views

Last post by FeLeX
Wed Mar 19, 2008 10:24 pm
Article on Designed Experiments with Spud Gun

Last post by jimmy101
Replies: 6
by StatsMan » Wed Jan 30, 2008 5:00 pm

First post

This page ( ) has a great article on an experiment with a pneumatic spud gun.

Last post

StatsMan

Glad to see a follow up on your first post. I was afraid it was going to be a drive-by post.

I've built a technical combustion gun and I...

6 Replies

3735 Views

Last post by jimmy101
Wed Mar 19, 2008 2:45 pm
Stupid lowes.....

Last post by SpudMonster
Replies: 6
by Spedy » Sun Mar 16, 2008 5:20 pm

First post

Ok. My Lowes doesn't carry pvc above 1 or so. I need a source of 4 + pvc for a project I'm doing. Anyone know a source near Stockton CA?

Last post

Yes, but McMaster will sodomize you with that stick of 8 PVC price-wise.

I'd recommend looking up any irrigation/farm supply companies in your area....

6 Replies

2259 Views

Last post by SpudMonster
Wed Mar 19, 2008 12:22 am
Blank firing BB gun.

Last post by iknowmy3tables
Replies: 24
by Counterstriker » Mon Mar 17, 2008 6:50 pm
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Attention: It is not a bullet, Well sorta.. it's a blank.

A blow gun will move the piston/ram up the barrel to strike the back of the blank.. A...

Last post

simple mis understanding save you nerdy pics for a real douchbag who really deserves baning
24 Replies

5816 Views

Last post by iknowmy3tables
Tue Mar 18, 2008 9:13 pm
Dead Space Question

Last post by Gippeto
Replies: 10
by Hubb » Mon Mar 17, 2008 4:30 pm

First post

Nothing is in the wiki on this topic and searching didn't reveal too much.

My current design is going to call for dead space. My question is, how...

Last post

Thanks Clide, I never thought of it quite like that before.

Always learning something new. :)

10 Replies

2320 Views

Last post by Gippeto
Mon Mar 17, 2008 11:26 pm
Homemade stirrup pump ( high pressure)

Last post by Gippeto
Replies: 37
by Brian the brain » Mon Mar 12, 2007 3:45 pm
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Stirrup pumps are handpumps, that can put out pressures up to 300 bar.
This is possible because they have a very small diameter, so not much force is...

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If anyone knows how to get to the 3000 PSI needed to fill these let me know..... (and it cant be a Scuba Tank, although that is an option)....
37 Replies

26346 Views

Last post by Gippeto
Mon Mar 17, 2008 9:09 am
SF Bay Area Spud Gunning Locations

Last post by Carlman
Replies: 14
by kablooie » Sat Mar 15, 2008 6:40 pm

First post

With the arrival of my new 3 piston cannon, I have overpowered the area I have to shoot and need a new place, and I am wondering if anyone here knows...

Last post

Yeah, I guess that is true, I have been limiting my cannon to 40 psi, so the range is not extreme. If no one else turns up with a location, I have...

14 Replies

3416 Views

Last post by Carlman
Mon Mar 17, 2008 12:56 am
Mitch's Stirrup Pump

Last post by Mitchza89
Replies: 20
by Mitchza89 » Thu Feb 28, 2008 1:44 am
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Well I've finally finished my pump. I've only got to hook up a compressor quick connector on the pump and my gun and I'll be all finished. I just...

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Not yet unfortunately. We are in the process of finishing writing our album. We have 8 songs completely done and 2 that are half done. It's going to...
20 Replies

6445 Views

Last post by Mitchza89
Sun Mar 16, 2008 7:20 pm
pump

Last post by bluerussetboy
Replies: 5
by Sticky_Tape » Sun Mar 16, 2008 4:34 pm

First post

hello before you say you just want us to spoon feed you information I would like to know what topic btb posted the plans for his pump I have looked...

Last post

UTFSE , this took me literally 10 seconds to find.

i hope to goawd that is the acronym for

USE THE FORUM SEARCH ENGINE

i would understand if it...

5 Replies

1971 Views

Last post by bluerussetboy
Sun Mar 16, 2008 5:40 pm
The Lowdown

Last post by viskaren
Replies: 43
by viskaren » Sat Mar 08, 2008 11:23 pm
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Hezzo. I have had my basic noobie combustion cannon for about a year now and have always been thinking about ways to improve it. I was on Cumberland...

Last post

I have made them before and understand all of the physics i just dont have the space for a real-life model. i have to stick with 5 footers atm
43 Replies

11081 Views

Last post by viskaren
Sun Mar 16, 2008 9:04 am
Working with 2.5" electrical PVC conduit...

Last post by potatoflinger
Replies: 3
by Shango » Sat Mar 15, 2008 2:06 pm

First post

...I have bought a length of conduit to make a tennis ball gun but cannot find out how to cap the ends and attach tubing to the valve. it seems that...

Last post

Wouldn't that leak? or would you put some sort of sealent against it.... Epoxy maybe?
That's why I said not to use it for anything that needs to be...

3 Replies

2122 Views

Last post by potatoflinger
Sat Mar 15, 2008 4:29 pm
selling burst disks

Last post by Ragnarok
Replies: 16
by Sticky_Tape » Sat Mar 15, 2008 10:04 am
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I am thinking of building a site that sell pre cut burst disks is this a good idea?

Last post

If I'm honest, it's not a particularly good idea for a venture. Making burst discs is really very easy, and not many people would want to pay extra...
16 Replies

2652 Views

Last post by Ragnarok
Sat Mar 15, 2008 2:53 pm
portable pressure theory...

Last post by Jared Haehnel
Replies: 37
by coolhippy80 » Mon Mar 03, 2008 1:24 am
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dont know if this would work, the idea just came to me. have you seen those dry ice bombs people make, with dry ice in a bottle with a bit of water,...

Last post

This has been another episode of entertaining videos by Jack... stayed tuned for Idiots on fire...
37 Replies

7883 Views

Last post by Jared Haehnel
Fri Mar 14, 2008 12:52 pm
EVBEC vs chrony

Last post by SpudFarm
Replies: 19
by SpudFarm » Sun Mar 09, 2008 1:33 pm
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today i got my chrony and tested how good the EVBEC online is.

at a 5x mix with a marble i got 1075 FPS so the EVBEC was of with 109.5 FPS something...

Last post

galfisk said it has a potential to kill... and i have learned that you does not take what he says for granted.

i don't fell on the ground just like...
19 Replies

4592 Views

Last post by SpudFarm
Thu Mar 13, 2008 1:01 pm
combustion shell theory

Last post by dilweed
Replies: 14
by dilweed » Fri Feb 29, 2008 5:27 pm

First post

Hello im a noob t this havent built a combustion (yet) but i have had quite a lot of experience at airguns. My main idea is that the firing system...

Last post

yes but i have tested it with a quick jab of a nail, anyway i have lost intrest in this now and will build a coilgun

14 Replies

8449 Views

Last post by dilweed
Wed Mar 12, 2008 1:58 pm
Help with some material

Last post by Gippeto
Replies: 6
by socoj2 » Tue Mar 11, 2008 7:00 am

First post

I am building a minigun and for my main shaft i need a specific size of Pipe. its not pressurized its more or less a spine.

It needs to be able to...

Last post

Have you considered a thrust face and torrington bearing? The center attatch point could use a smaller shaft and ball bearing, while the centrifugal...

6 Replies

1927 Views

Last post by Gippeto
Tue Mar 11, 2008 11:49 pm

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