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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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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

1065578 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

531487 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...

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

296073 Views

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

Topics

full auto??

Last post by spudshot
Replies: 18
by iamthewalrus » Sun May 29, 2005 9:06 pm
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First post

ok, i just thought of somthing crazy. this probly wouldnt work, but has any one ever tryed making a vortex gun with a huge, and i mean huge camber...

Last post

i think its pretty much the same as a blowforward design used in paintball guns, not sure though
18 Replies

9037 Views

Last post by spudshot
Sun Jun 05, 2005 12:44 pm
Best Gun

Last post by Thai Fighter
Replies: 26
by true2blue92 » Thu Jun 02, 2005 6:42 pm
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I have about $50-$70 dollars to spend on a gun. What would you say is the best? I would like to build a newmatic gun. Also would like interchangeble...

Last post

Oops, I also made the mistake of combustion chamber/barrel. Sorry Cole, I thought you said barrel. EXTREMELY sorry.

Man, do I ever feel like an...
26 Replies

13607 Views

Last post by Thai Fighter
Sun Jun 05, 2005 11:15 am
Combustion Or Pneumatic?

Last post by julz
Replies: 31
by julz » Thu Apr 21, 2005 7:33 pm
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Hi, I am about to start making a normal sized spud cannon with my Dad. i have some inner conflicts about what type to make. Below I have written the...

Last post

ill try cleaning the valve. also ill was the inside of the chamber so the dust is removed. how exactly does the dust stop the phram drom closing...
31 Replies

18490 Views

Last post by julz
Sat Jun 04, 2005 7:03 pm
casting custom slugs

Last post by jrblast
Replies: 13
by unoriginalusername » Sat May 28, 2005 10:42 am

First post

i was just pondering.
you know how tin solder is really soft and has a low melting point, perhaps you caould form some kind of mold, be it some...

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lol, umm well lets be honest, how often do u look inside ur barrel? as far as im concerened ur either stuff in the ammo or shooting it out, lol, but...

13 Replies

7174 Views

Last post by jrblast
Fri Jun 03, 2005 8:06 pm
Size question

Last post by spudshot
Replies: 9
by niceguyjps131 » Thu May 19, 2005 8:47 pm

First post

Can anyone tell me if they think a spud gun wih a 5ft, 2in pvc barrel and a 4ft, 4in pvc conbustion chamber would be TOO big, wouldnt work or...

Last post

NSF-PW is a marking that is on any pressure rated pipe or fitting, those that arent will say NSF-DWV. with such a large gun the 8 has a fairly low...

9 Replies

5278 Views

Last post by spudshot
Fri Jun 03, 2005 4:14 pm
CO2 without a regulator

Last post by spudshot
Replies: 1
by saladtossser » Fri Jun 03, 2005 12:34 pm

First post

Can I just use a really (4 dia. and as long as a car) big chamber so the CO2 wont have as much psi as it was in a tank? not the 12 gram ones.

Last post

um why? it would cost about the same to order PW endcaps for it as it would to buy a CO2 regulator, an adapter fitting, and an on/off adapter from a...

1 Replies

1948 Views

Last post by spudshot
Fri Jun 03, 2005 1:20 pm
Metering Pipe

Last post by spudshot
Replies: 1
by niceguyjps131 » Wed Jun 01, 2005 9:13 pm

First post

I just had a question about the propane meter I just built. First I have a 3 1/2 ft combustion chamber and a 10 ft barrell, would a 3/8 10 in...

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you'd need 151 psi in a 12 x 3/8 pipe, and you'll never get the propane tank to that pressure. i would go with a 3/4 x12 pipe that way you would need...

1 Replies

2273 Views

Last post by spudshot
Thu Jun 02, 2005 3:17 am
new burst disk?

Last post by iamthewalrus

by iamthewalrus » Wed Jun 01, 2005 8:16 pm

yeah, i was just at walmart and i saw something crazy, a PVC pancho. i was wondering if anyone has ever tryed one of the to use for burst disk...

0 Replies

2912 Views

Last post by iamthewalrus
Wed Jun 01, 2005 8:16 pm
How to register on the spud tech forums.

Last post by saladtossser
Replies: 2
by rsgpit » Tue May 31, 2005 1:36 pm

First post

I feel like such an idiot, because i cant register for the SpudTech.com forums. I go to the agreement page, read the whole thing, and click agree,...

Last post

disable ur firewall, it worked for me

2 Replies

2923 Views

Last post by saladtossser
Wed Jun 01, 2005 1:13 pm
Barrel Portability with saftey

Last post by No.Va
Replies: 7
by No.Va » Tue May 31, 2005 1:31 pm

First post

Im planning on making a combustion cannon, but Im not entirly sure of the saftey of it. I have a few reasons that I want to be able to store it easy...

Last post

Well, the thing aboutt he short cannon lenght is that i cant really store it in many places, i have a small room and my other one takes up alot of...

7 Replies

4359 Views

Last post by No.Va
Wed Jun 01, 2005 8:58 am
Crayon Ammo

Last post by iamthewalrus
Replies: 2
by iamthewalrus » Tue May 31, 2005 5:49 pm

First post

iv got my crayon slugs
all u do is take some crayons, break um up and make a little tin foil stove around um but leave a hole open on the tin foil...

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well i didnt even heat the pvc on the second try its only black bacause i didnt know what i was doing, i jsut put a buncha crayons on foil an dheat...

2 Replies

2767 Views

Last post by iamthewalrus
Tue May 31, 2005 8:24 pm
favorite ammo

Last post by boilingleadbath
Replies: 18
by tatorassassinator » Sun May 01, 2005 11:19 am
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What is your favorite ammo? My favorite ammo is PVC rockets, golf balls, and rocks. Paintballs are awesome because they spread just like a shotgun.

Last post

Pycreat, random hard objects, random objects, spuds.

Pycreat is hard as... well, it has a tensile strength of 1000 PSI, and a compressive strength...
18 Replies

12355 Views

Last post by boilingleadbath
Tue May 31, 2005 2:42 pm
How to make the best union.

Last post by rsgpit
Replies: 4
by rsgpit » Tue May 31, 2005 1:30 pm

First post

I made a small union, but you have put the burst disk between the threads of the piping. Is this right?, or is there a better way to make a union....

Last post

Right after the union, im gonna bond a hinge to the inside of the barrel, and attatch a bolt or nail to the hinge, and then attatch a spring to the...

4 Replies

3641 Views

Last post by rsgpit
Tue May 31, 2005 2:29 pm
Combustion Meter

Last post by spudshot
Replies: 1
by CS » Tue May 31, 2005 9:44 am

First post

Im 99% sure that some one has attempted this or made one. I just wanted to make one of these so i could measure the pressure (force) of the...

Last post

yeah, most people use them on their hybrids to record max pressure, and the flow valve is called a check valve, you'd want a spring check valve, not...

1 Replies

2076 Views

Last post by spudshot
Tue May 31, 2005 10:03 am
Silencer?

Last post by CS
Replies: 7
by No.Va » Thu May 26, 2005 4:25 pm

First post

Hey everyone, I just recently completed my first spud cannon, it has a 3' by 14' chamber and a 2' by 36' barrel, I installed a fan and a spark jump...

Last post

I have made barrel extensions and they are just as quiet as silencers. For your barrel extension use wall isulation for the filling it works very...

7 Replies

5329 Views

Last post by CS
Tue May 31, 2005 9:00 am
hybrid question

Last post by spudshot
Replies: 1
by iamthewalrus » Mon May 30, 2005 8:58 pm

First post

ok, im not making a hybrid right now(i dont trust my combustion skills that much yet and i like living) but i was wondering, after u do a 2x or 3x...

Last post

alright, with normal atmospheric pressure at sea level you have about 14.7 psi, when you inject say a 2x mix you need to double that air so you'd...

1 Replies

1970 Views

Last post by spudshot
Tue May 31, 2005 3:53 am
6" diamiter chamber?

Last post by Cool
Replies: 30
by Boot » Sat Feb 26, 2005 4:05 pm
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I was planning on using 6 diameter pvc pipe for my chamber on a propane combustion gun but I have not seen another gun with a large diameter chamber...

Last post

yes, it ABS. I'm not completly finished with it yet, still need a few modifications.
30 Replies

18723 Views

Last post by Cool
Mon May 30, 2005 4:42 pm
blow gun info?

Last post by theexp
Replies: 6
by unoriginalusername » Sat May 28, 2005 9:59 am

First post

g'day fellas

so i've stumbled upon the use of blow guns as triggers/vlaves in pneumatic cannons.

i have a few questions.

1. i've seen blowguns...

Last post

When i use ones that say use only 30 psi and under for over like 90 they start leaking after wards, and i have to take it apart, wipe everything...

6 Replies

4512 Views

Last post by theexp
Mon May 30, 2005 10:28 am
spark jump

Last post by BillyBobJoe
Replies: 8
by iamthewalrus » Thu May 26, 2005 8:26 pm

First post

this my be a totally opinionated question, butmaybe theres science behind it. i was just woundering if there is a best lenght for the spark to jump....

Last post

A larger spark has a greater chance of ignting fuel that is not mixed properly, because it covers a large area, but if you using a chamber fan, it...

8 Replies

5382 Views

Last post by BillyBobJoe
Mon May 30, 2005 8:39 am
Pneumatic Questions

Last post by Aaron ?????
Replies: 13
by Cole » Thu May 26, 2005 11:49 pm

First post

Ok I have some questions about pnuematic potato guns. Is there a way to make an auto bb gun without having it hooked up to a compressor. Will a...

Last post

if you want to know how a blow gun worx un do the bit under the leaver thing that you press (the bit with a small peice of metal rod coming out)
i...

13 Replies

7139 Views

Last post by Aaron ?????
Mon May 30, 2005 2:17 am
New Valve Idea

Last post by spudshot
Replies: 7
by saladtossser » Thu May 26, 2005 3:56 pm

First post

what if a sprinkler valve was modded with a pop-off valve, i will work like a reuseable diaphram.

I will add a picture to explain very soon...

Last post

125 may be the max tested pressure, but plasticex009 has taken them hydrostatically to either 200 or 300 psi. and the toro ones are rated to 200 psi

7 Replies

4762 Views

Last post by spudshot
Sun May 29, 2005 6:15 am
pneumatic solenoid modding

Last post by spudshot
Replies: 1
by unoriginalusername » Sat May 28, 2005 12:00 pm

First post

okay, so it seems it best to modify a solenoid with a blowgun.

what type of hose should i use?where can i get it from? cost?
is the compreession...

Last post

1. any air hose rated over 100 psi, about 1/4 -3/8 hose
2. the compression chamber is connected to the valve using the opening that the arrow on the...

1 Replies

2995 Views

Last post by spudshot
Sat May 28, 2005 1:37 pm
Material for diaphragm

Last post by spudshot
Replies: 2
by The Ogre » Thu May 26, 2005 8:10 pm

First post

I'm makin a cannon its built but I'm havin trouble makeing a diaphragm for it,
the valve type is more or less a super enlarged orbit watermaster...

Last post

if you're using a test tee, i believe they're very thin or DWV, either way, its not very safe at all, only use parts labeled NSF-PW. also i dont like...

2 Replies

2934 Views

Last post by spudshot
Fri May 27, 2005 4:59 am
BB gun pneumatic

Last post by Cole
Replies: 2
by Cole » Thu May 26, 2005 5:19 pm

First post

I have an old bb rifle, couldnt I just add a chamber to the existing chamber of the bb rifle and have a semi auto bb gun?

Last post

I am going to try it out, ill report back when my project is finished. Wish me luck.

2 Replies

3123 Views

Last post by Cole
Thu May 26, 2005 6:06 pm
nail gun

Last post by jrblast
Replies: 6
by teeka » Tue May 24, 2005 11:37 pm

First post

Someone said to me the other day that if you wanna make a semi - auto bb gun, you could take the valve out of an air compressor nail gun, because...

Last post

hmm, you could probably get a cheap nail gun on ebay (like an old one or somehting) and take one out of there? or maybe a hardware store or garage...

6 Replies

5616 Views

Last post by jrblast
Thu May 26, 2005 4:38 pm

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