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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

1201269 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

626133 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

336485 Views

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

Topics

Penetration testing idea.

Last post by warhead052
Replies: 16
by warhead052 » Tue Jul 19, 2011 10:32 am
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First post

I have an idea, and D_Hall, if you're still around you may be able to make this. Is it possible for someone to code a program that compares a cannon...

Last post

If we could see an impact then no. But since we can't see the impact then yes.
16 Replies

3719 Views

Last post by warhead052
Wed Jul 20, 2011 9:26 am
high pressure air line

Last post by turner
Replies: 4
by far_cry » Thu Jul 14, 2011 1:35 pm

First post

i found THIS high pressure Stainless Steel Braided Hose Line, and in the description they said Working with in 3000-12000 PSI air pressures....

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you could always use macro line also if you wanted to change the length or take it apart without undoing the fittings.

4 Replies

2999 Views

Last post by turner
Thu Jul 14, 2011 7:47 pm
digital scope using an android!

Last post by jackssmirkingrevenge
Replies: 18
by jackssmirkingrevenge » Tue Jul 05, 2011 9:51 am
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Saw this on endo, and used on a spudgun ! Brilliant!

Last post

You seem to be quite fond of The Firearm Blog.

Yes. Yes I am. And a host of other relevant news sites as JDP12 correctly implied. Helps me keep up...
18 Replies

7542 Views

Last post by jackssmirkingrevenge
Wed Jul 13, 2011 10:00 pm
How to add a pressure switch

Last post by jackssmirkingrevenge
Replies: 3
by Technician1002 » Sun Jul 10, 2011 10:42 pm

First post

Due to several comments like this;
Today I realized it wasn't getting hot it just has trouble starting when there is pressure in the output! I had a...

Last post

Advice, don't take one apart. The springs make it a **** to reassemble.

Don't ever change the spring on a full power air rifle then ;)

3 Replies

3604 Views

Last post by jackssmirkingrevenge
Mon Jul 11, 2011 12:55 am
Legality of cannons in Massachusetts

Last post by mattyzip77
Replies: 7
by mattyzip77 » Sun Jul 03, 2011 10:26 pm

First post

For n e one wondering, I was at a 4th of July bash last night. My daughter and I were firing my cannons for about an hour until a state trooper...

Last post

Hey Fnord, and ANY one else, sorry for abbreviating! I am just so used to texting and sometimes dont, I mean, do not, even realize I am doing it! I...

7 Replies

5399 Views

Last post by mattyzip77
Tue Jul 05, 2011 7:55 pm
Calculating bursting pressure of different steels

Last post by inonickname
Replies: 7
by Jolly Roger » Wed Jun 29, 2011 4:17 am

First post

Just wondering how others figure out the bursting pressure of different size steel vessels from given yield and tensile strengths.

Last post

Cheers guys, I'll give that a go.

Also Velocity, I was just about to ask whether solid works can calculate such things. Didn't even have to ask :D...

7 Replies

2595 Views

Last post by inonickname
Thu Jun 30, 2011 8:55 am
HGDT Paid Challenge - $50

Last post by ramses
Replies: 21
by Jolly Roger » Sat Jun 25, 2011 10:56 pm
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Alright people. I've got a challenge to put out there for anyone wanting to have a crack. I'm looking to pay someone to optimise HGDT figures, with a...

Last post

...
I realized that shortly after I typed most of the post, but I still wanted to get the meme in there. Also, I misspoke (mistyped) when I said the...
21 Replies

5994 Views

Last post by ramses
Wed Jun 29, 2011 7:19 pm
The Hubbrid Spark Plug

Last post by HACKERZLORD007
Replies: 5
by Hubb » Tue Apr 01, 2008 10:09 am

First post

There seems to be several questions about how to place a spark in the center of a hybrid (or combustion). I did it on my hybrid launcher , without...

Last post

THanx a ton mate....really needed help with the spark plugs!!!!
This just solved my problem.....and a pretty good and east to understand diagram!!!...

5 Replies

7238 Views

Last post by HACKERZLORD007
Tue Jun 28, 2011 6:14 am
no-waste piston valve

Last post by al-xg
Replies: 7
by jackssmirkingrevenge » Mon Jun 27, 2011 10:35 am

First post

Nothing original, it's basically how a washing machine or dishwasher solenoid valve works, the pilot volume is dumped through the barrel. Just a...

Last post

but it would probably require rather high tolerances to get the internal piston to re-seat inside the external when the external kicks back and...

7 Replies

3342 Views

Last post by al-xg
Mon Jun 27, 2011 4:21 pm
CB ratio for coaxial gun

Last post by Jolly Roger
Replies: 20
by Jolly Roger » Sat Jun 25, 2011 3:39 am
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Does anyone know how to optimise the diameter and length of the inside barrel on a coaxial design, and how that would affect the actual CB ratio? Any...

Last post

Yeah I think that'll be the go. I'm drawing up some ideas at the moment for how to install the ignition points
20 Replies

5593 Views

Last post by Jolly Roger
Sun Jun 26, 2011 11:44 pm
Solidworks Newbie

Last post by al-xg
Replies: 11
by Jolly Roger » Fri Jun 24, 2011 6:40 am

First post

Hey all,

At the moment I'm trying to get my head around Solidworks and was wondering if anyone on here has experience with it and may be able to...

Last post

No problem Sergeant Major ;)

11 Replies

5324 Views

Last post by al-xg
Sun Jun 26, 2011 2:54 pm
Male quick connect that holds pressure?

Last post by Gippeto
Replies: 4
by Jabingo19 » Sun Jun 26, 2011 10:21 am

First post

Anybody heard of one? I am building a golf ball gun and I found out the hard way that quick connects do not hold pressure when detached from the...

Last post

Ninja mini fill valve..5000psi rating. Have a couple and they work great...even better if you place a LIGHT spring such to hold it closed.

4 Replies

1785 Views

Last post by Gippeto
Sun Jun 26, 2011 2:01 pm
Bolt Action Mechanism

Last post by Crna Legija
Replies: 2
by bholt91 » Fri Jun 24, 2011 10:22 pm

First post

I plan on creating a new pneumatic cannon and I would like to have a small dia. barrel (1/2 of 3/4 haven't decided yet) but I was wondering if...

Last post

use the edit button no need to post 3 times, and look thought the show case for ideas

2 Replies

995 Views

Last post by Crna Legija
Fri Jun 24, 2011 11:25 pm
New type of kids gun, Max Force?

Last post by PVC Arsenal 17
Replies: 6
by LovableAirGuns » Tue Jun 21, 2011 4:46 am

First post

Hey every one I just recently saw a commercial of these new pump guns that looks pretty accurate but who knows. :D

Here is the add:

Last post

Seems like an an answer to Xploderz which uses those absorbent beads that turn into gel balls. You find them in floral arrangements and they're...

6 Replies

2585 Views

Last post by PVC Arsenal 17
Tue Jun 21, 2011 7:35 pm
Baking Soda and Vinegar?

Last post by tbillion
Replies: 21
by joemama » Sun Dec 11, 2005 6:13 pm
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you could make a canonn that is a combustion phnomic and vinigar powerd lol, you can modify the valves into what ever u want , the funnle would be...

Last post

well thanks to all that helped when i first read this forum I didn't even know that a gas law was what I was looking for, thank you for putting up...
21 Replies

16340 Views

Last post by tbillion
Fri Jun 17, 2011 9:47 pm
gun idea

Last post by Doctore
Replies: 9
by streetfire » Mon Jun 13, 2011 2:10 pm

First post

saw this gun in the movie district 9 is it possible to make one anyone has a idea?

Last post

So you think spudders can figure out alien technology :D :D :D
Haha just kidding.
It is for sure something like vortex cannon.

9 Replies

3490 Views

Last post by Doctore
Tue Jun 14, 2011 7:05 am
I cant find a cannon on spudfiles, need link

Last post by matti
Replies: 2
by matti » Mon Jun 13, 2011 1:03 pm

First post

I have searched a cannon for a full day, but i just cant find it.. i dont remember who post it, but i remember it was cnc machined aluminium and it...

Last post

It could only be VARGAS ;)

Yes thats it! thanks :D

2 Replies

1390 Views

Last post by matti
Mon Jun 13, 2011 2:14 pm
Cold weather firing.

Last post by saefroch
Replies: 7
by shmoesus » Sun Feb 13, 2011 4:25 pm

First post

During the summer I have no problems with firing my potato gun, but during this cold winter I have had horrible luck just trying to get the gun to...

Last post

In colder weather, the vapor pressure of propane is lower, and the flow out the nozzle of any canister pressurized with propane or butane will be...

7 Replies

3640 Views

Last post by saefroch
Sun Jun 12, 2011 10:00 pm
sprinkler valve

Last post by Crna Legija
Replies: 2
by streetfire » Sat Jun 11, 2011 5:22 am

First post

hi my name is joffrey and i live in the Netherlands and i had some questions about the sprinkler valve what kind of pressure can they take? and does...

Last post

If you cant find sprinkler valve's try looking for diaphragm valve, same thing.
Each one comes with there own pressure rating usually 110-150 psi but...

2 Replies

1272 Views

Last post by Crna Legija
Sat Jun 11, 2011 6:28 am
Soda can burst disks.

Last post by Crna Legija
Replies: 9
by warhead052 » Wed Jun 08, 2011 3:03 pm

First post

What pressure do they rupture at? I was thinking about using some aluminum cans for burst disks (obviously cutting the disks out) and seeing if that...

Last post

i made a to pneumatic burst disc just lots of noise, had no barrel but with roughly a 20mm port alu cans sides where bursting at just under 200

9 Replies

4697 Views

Last post by Crna Legija
Thu Jun 09, 2011 9:37 pm
Wads

Last post by d.marty
Replies: 4
by d.marty » Tue Jun 07, 2011 6:48 pm

First post

For all of you who havent tried this... i suggest you do... it works with the same principle as a shotgun shell... except for your launcher. spent...

Last post

he is right... they fit in 2 barrels... slightly too small without the sides slit... they give a tight seal... and it varies on reusability......

4 Replies

4609 Views

Last post by d.marty
Wed Jun 08, 2011 2:32 pm
Muzzle brakes

Last post by LovableAirGuns
Replies: 5
by drex » Tue Jun 07, 2011 10:28 pm

First post

I routed out a simple muzzle brakes today.

I have no idea how well it will work, I had to pretty much just guess on its geometry, I made the hole...

Last post

wow that looks amazing and you should also try this website out :D

5 Replies

2791 Views

Last post by LovableAirGuns
Wed Jun 08, 2011 4:31 am
QDV Pumpkin Cannon Attention Technician1002!

Last post by saefroch
Replies: 4
by metalmeltr » Tue Jun 07, 2011 11:48 am

First post

Could this be the next big thing at Punkin Chunkin?
Would a QDV piston that size be able to move fast enough to make the valve worth it?
I figure...

Last post

Launching pumpkins was discussed somewhat in detail here .

4 Replies

5364 Views

Last post by saefroch
Tue Jun 07, 2011 4:33 pm
Pre-K Science Project

Last post by jimmy101
Replies: 3
by PVC Arsenal 17 » Wed Jun 01, 2011 4:48 pm

First post

Every Wednesday my sister demonstrates some basic, fun science experiments to her pre-k classes (ages 2-5). For a while she's been asking me to put...

Last post

Nice job!

All good (and easy) stuff that'll wow the heck out of a kid.

Years ago I did a presentation and demo with water rockets for a first grade...

3 Replies

1977 Views

Last post by jimmy101
Thu Jun 02, 2011 6:45 pm
A mathematical question about preassure

Last post by Tobin
Replies: 2
by Tobin » Sun May 29, 2011 8:15 am

First post

If we have a circle, the circle has an circumference at 10cm. Inside the circle we have a preassure at 10kg/cm. Does that mean that at the circle's...

Last post

Ok, thanks. Actually i dont know exactly what tractive means, i did just use the google translator :P

2 Replies

1423 Views

Last post by Tobin
Sun May 29, 2011 10:54 am

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