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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

1070892 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

533595 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

297183 Views

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

Topics

Valves?

Last post by Flinchy
Replies: 4
by Flinchy » Tue May 23, 2006 10:25 pm

First post

im just curious, but are there any other valves that can be used for pneumatic cannons besides ball valves, sprinkler valves or even joels supah...

Last post

ok thanks, ill check that out. im interested in the quick exhaust valves, i believe i've heard of em before on a few cannons. i think that i can pick...

4 Replies

1887 Views

Last post by Flinchy
Wed May 24, 2006 2:16 pm
Question for golfball barrels

Last post by Benny
Replies: 10
by ProfessorAmadeus » Mon May 08, 2006 8:35 pm

First post

i was wondering do you have to sleeve sdr-21 pipe into sch80 pipe or can you sleeve it into regular sch40 pipe? this is off topic and im a newb so...

Last post

ya,you better watch out or you will get shocked to death through your key bourd
Ha!

10 Replies

3381 Views

Last post by Benny
Wed May 24, 2006 2:54 am
Coaxial Union

Last post by Benny
Replies: 1
by Atlantis » Tue May 23, 2006 7:34 pm

First post

Has anyone ever made a coaxial burst disk gun? This would be a cool way to make a mortar.

Last post

hey, thats an idea, there was a thread ages ago about co-axial sprinkler valve cannon.

1 Replies

843 Views

Last post by Benny
Wed May 24, 2006 2:43 am
Sprinkler Valve question, im new plz help.

Last post by Benny
Replies: 8
by Mihlrad » Tue May 23, 2006 6:52 pm

First post

First post ^^

Well anyway im new to the spud gun making and I just recently started my first one, so far it consists of what is in the picture, the...

Last post

^ :lol: 12:1 raitio, thats crasy.

8 Replies

2466 Views

Last post by Benny
Wed May 24, 2006 2:34 am
Barrel Rifiling

Last post by sgort87
Replies: 18
by SpudStuff » Sun May 21, 2006 12:34 am
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First post

I just saw a show on how they mave military issue m-16s. when they rifle the barrel they have a small brass piece that they put in one end of the...

Last post

Yes, I have a few rifled barrels and really there isn't much at all cut into them. I'd be surprised if it were anything even relatively close to a...
18 Replies

5076 Views

Last post by sgort87
Wed May 24, 2006 1:27 am
marble pneumatic

Last post by Flinchy
Replies: 8
by ProfessorAmadeus » Sun May 21, 2006 9:23 pm

First post

my new marble gun worked very well for only a short period of time. my piece of plastic that works like an o-wing shot out of my gun on one of my...

Last post

lol sry, i posted at like 3am or so last time, but anyways, i agree with the posts above mine. you should just put a stopper in it, i've used nails...

8 Replies

3011 Views

Last post by Flinchy
Tue May 23, 2006 10:20 pm
Triggered Burst Disk

Last post by Flinchy
Replies: 3
by SpudStuff » Tue May 23, 2006 8:45 pm

First post

Alright i just thought this up so be easy. First you close the large ball valve between the union and the barrel. then you open the small...

Last post

its a neat idea... but i think i'll have to stare at it for another minute or 2 until i understand how it basically works... in the future put labels...

3 Replies

1683 Views

Last post by Flinchy
Tue May 23, 2006 9:17 pm
Expected Ballistic Distance Calculator - Links???

Last post by SpudStuff
Replies: 3
by 357Wood » Tue May 16, 2006 1:36 pm

First post

Anyone have a link to predict the distance a golf ball will travel from an SDR-21 sleeved barrel. I have a ballistic chronometer, so I can measure...

Last post

i found a link ummmmm
here you go Click Here

3 Replies

1647 Views

Last post by SpudStuff
Tue May 23, 2006 9:09 pm
my first pnuematic

Last post by Darkside 6ix
Replies: 9
by Darkside 6ix » Sun May 21, 2006 12:08 pm

First post

aha i finally got my mom to give me her old digital camera. now i can finnaly post pics. heers a couple of pics of my pnuematic(i dont really have a...

Last post

thanks.
lol i didnt exaxtly know what edit was. i saw it but i didnt click it :oops:

9 Replies

2967 Views

Last post by Darkside 6ix
Tue May 23, 2006 8:09 pm
WTF... odd gun

Last post by saladtossser
Replies: 19
by Darkside 6ix » Sat May 20, 2006 12:10 pm
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i wana know what the #UCK this is. it looks like a grappling hook. i stared at this thing for hours trying to figure out what it is but...... :x :x...

Last post

i got a killer idea, attach a air motor and it will automatically pull itself up!
19 Replies

7411 Views

Last post by saladtossser
Tue May 23, 2006 6:14 pm
PSI Calculations

Last post by Benny
Replies: 13
by cannon freak » Sun May 21, 2006 9:49 pm

First post

How would you go about calculating the psi that is created in the chamber of a cannon for say propane, (C3H8), at a certain pressure and at a certain...

Last post

ok, thanks. :D

13 Replies

3005 Views

Last post by Benny
Tue May 23, 2006 5:06 pm
Burst disk made easy.

Last post by )DEMON(
Replies: 3
by )DEMON( » Tue May 23, 2006 2:29 am

First post

ok heres how it works.
1.the ball valve being in the open position(no chamber pressure)
2.the ball valve must start to be closed,befor it is fully...

Last post

well,this was just an idea for replacing burst disks easily

3 Replies

1514 Views

Last post by )DEMON(
Tue May 23, 2006 12:21 pm
Basketball Rubber

Last post by Atlantis
Replies: 6
by Atlantis » Mon May 22, 2006 2:20 pm

First post

Would the rubber from a basketball make a good seal againts PVC? The inside might be smooth, I'm not sure.

Last post

Might even be good for a diaphraghm, I'll check when I get home. I was planning on using it with a barrel sealing valve.

6 Replies

1754 Views

Last post by Atlantis
Tue May 23, 2006 12:07 pm
Need a little help

Last post by sgort87
Replies: 8
by Andrew52 » Sun May 21, 2006 7:39 pm

First post

hey guys im going camping and a bunch of the older guys have some regualr run-of-the-mill abs spudguns and i have one to but i have been planning on...

Last post

I think your simple mind has tricked you into thinking you are onto something. :wink:

The ratio is what I'm talking about here. The launcher...

8 Replies

1941 Views

Last post by sgort87
Tue May 23, 2006 10:44 am
a valve idea and a valve question

Last post by Benny
Replies: 4
by A-98 » Mon May 22, 2006 9:21 pm

First post

ok i was taking a piss at caltech(california institute of technology) and i look at the urinal and thought that maybe you could use one of those...

Last post

or you could use one of them shauder valve connectro things, it probadly woudlent let out the pilot fast enough tho.

4 Replies

1542 Views

Last post by Benny
Tue May 23, 2006 5:29 am
propane metering diagram?????

Last post by sgort87
Replies: 2
by death of doom » Sat May 20, 2006 12:16 pm

First post

hey i'm going to use metered propane in my gun. i was wondering if someone could send me a diagram for it? Thanks.

Last post

Actually I'd strongly suggest thoughly reading Latke's propane injection page.

2 Replies

1236 Views

Last post by sgort87
Sun May 21, 2006 11:57 pm
gasoline

Last post by sgort87
Replies: 17
by pyromanic13 » Thu May 18, 2006 3:22 pm
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First post

sorry I couldn't find/remember the thread that concluded whether or not gasoline/denatured alchole damages pvc pipe...

if you could send me a link/...

Last post

I don't think so. And use the pink foam for napalm. I hear adding motor oil helps too. And yes, napalm in general is quite unimpressive. The only use...
17 Replies

6928 Views

Last post by sgort87
Sun May 21, 2006 11:03 pm
Having Trouble New Gun Please Help

Last post by Andrew52
Replies: 23
by Clandest1n3 » Wed Apr 12, 2006 4:10 pm
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First post

Hi I just built a combustion gun that uses a BBQ igniter for ignition and it just doesnt seem to have the power that it should at all and a lot of...

Last post

i have heard that the starch for clothes or something works good
23 Replies

9758 Views

Last post by Andrew52
Sun May 21, 2006 6:35 pm
Coaxial, piston problems

Last post by trask_12
Replies: 2
by trask_12 » Sat May 20, 2006 3:55 pm

First post

I'm building my first gun, a pneumatic piston exhaust gun. It's pretty much the PAC 5 from xinventions. I've got the whole thing built but when I add...

Last post

Yes, i drilled a couple holes in both my big washers to help equalize but it's still not working properly, it seems to be 50/50 wether it will shoot...

2 Replies

1431 Views

Last post by trask_12
Sun May 21, 2006 3:37 pm
semi-auto?

Last post by Flinchy
Replies: 6
by )DEMON( » Sun May 21, 2006 4:28 am

First post

would this work

Last post

thats a neat schematic you have going there. im curious myself about semi-automatic cannons. mostly because i get annoyed with having to unscrew the...

6 Replies

2311 Views

Last post by Flinchy
Sun May 21, 2006 12:58 pm
Questions about the practical use of a potato canon

Last post by jrrdw
Replies: 11
by SporkedInTheHead » Sun Sep 11, 2005 10:33 pm

First post

Hello everyone, and thank you for even taking the time to click on my thread...
Now, before I get into my questions I feel as though I have to give a...

Last post

On my bow, every 1/2 you pull it back, add 5 lbs. (starting at standerd pull of 13 1/2 ), it's a recurve, compounds bows are different.

11 Replies

5226 Views

Last post by jrrdw
Sun May 21, 2006 6:03 am
propane vs hydrogen

Last post by Rambo
Replies: 22
by cannon freak » Mon May 15, 2006 7:16 pm
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First post

Hey what is a more powerfull for use in a combustion cannon propane or hydrogen

Last post

Ever heard about critical mass?
22 Replies

8542 Views

Last post by Rambo
Sun May 21, 2006 3:53 am
piston question

Last post by )DEMON(
Replies: 1
by Benny » Sun May 21, 2006 3:02 am

First post

hi, what size dowel rod fits in 3/4 sch80? thanks. :D

Last post

wouldnt it be easyer just to go to the hardwere store with a peice of the pipe and see which piece of dowel rod fits inside? :P

1 Replies

945 Views

Last post by )DEMON(
Sun May 21, 2006 3:17 am
co-axial diaphragm

Last post by Benny
Replies: 3
by McThrust » Sun May 21, 2006 12:16 am

First post

i have a question about a co-axial pneamatic im building. im not sure were to put the schrader adapter, i have heard that if u put it behind the...

Last post

disconecting the shauder valve should not fire the gun unless you have a very small pilot.

3 Replies

1618 Views

Last post by Benny
Sun May 21, 2006 2:33 am
Freezing The Flame

Last post by boilingleadbath
Replies: 11
by Ballad_Black » Sun Oct 30, 2005 12:52 pm

First post

I finished my newest combustion, it has a chamber fan, mini gun grip, detachable barrels. It also uses a bbq sparker as ignition. Well, I went to...

Last post

PVC is NOT soluable in gasoline; gasoline is too long, not polar enough, and probably doesn't exibit enough hydrogen bonding.

11 Replies

4682 Views

Last post by boilingleadbath
Sat May 20, 2006 10:46 pm

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