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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

1201374 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

626257 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

336520 Views

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

Topics

How do i make a bbq ignitor smaller?

Last post by carlbelcher
Replies: 5
by Mihlrad » Wed Jun 28, 2006 4:09 pm

First post

I was looking at different combustion pictures, and i see some of them, like for example again, the blue flame II by gort, has a smaller trigger...

Last post

Rip open a long-nosed lighter and you should find something that looks like this.

They work pretty good, but there not as powerful as a BBQ...

5 Replies

1507 Views

Last post by carlbelcher
Thu Jun 29, 2006 7:08 am
stop leak/fill hole.

Last post by carlbelcher
Replies: 3
by djt » Wed Jun 28, 2006 4:30 pm

First post

for my pneumatic cannon i tapped the hole for the gauge with the gauge. the hole looked pretty nicely tapped with the fitting but when i put it in it...

Last post

You should be just fine if you put some epoxy (I recommend JB Weld) on the threads and screw it in. Just make sure not to plug the hole for the air...

3 Replies

1587 Views

Last post by carlbelcher
Thu Jun 29, 2006 6:57 am
Best Way to cut O-Ring Grooves

Last post by CS
Replies: 15
by SpudStuff » Tue Jun 27, 2006 11:09 pm
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First post

Okay. Im sure someone has answered this before but what is the best way to cut O-Ring grooves in a 4 inch Piston. I have two tight fitting 1/8 inch...

Last post

Angle iron isnt required, just a cool texture I decided to slap on there. It can be simple as two peices of wood and screwed together to make a 90...
15 Replies

4008 Views

Last post by CS
Thu Jun 29, 2006 4:39 am
Next step in the hobby?

Last post by boilingleadbath
Replies: 17
by Mihlrad » Mon Jun 26, 2006 8:00 pm
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I so far have built a combustion and a pnuematic both basic with some trial and error, i was wondering what the next step really after making the...

Last post

In physics, power is work (applied energy) devided by time, with energy being a measure of ability to do work. Roughly. Sorry I botched a semantic...
17 Replies

129276 Views

Last post by boilingleadbath
Thu Jun 29, 2006 1:55 am
Paintball Barrel

Last post by frogy
Replies: 10
by Vincente » Wed Jun 28, 2006 1:25 pm

First post

What fittings would I need to attach a 3/4 CPVC barrel to a 1 threaded sprinkler valve?

I'm asking this question because I don't know how to adapt...

Last post

My converter is made for interchangable Paintball barrels...

Since 3/4 CPVC is was to small to fit in 3/4 PVC fittings and to big to fit in 1/2 PVC...

10 Replies

3654 Views

Last post by frogy
Wed Jun 28, 2006 6:14 pm
Hardware and Malmarket problems, please help !

Last post by benstern
Replies: 4
by Mugumaster » Tue Jun 27, 2006 1:03 pm

well im from switzerland and here in the do it yourself shops you wont find anything you really need :/
i cant find any nice valves or PVC Pipes...

4 Replies

1758 Views

Last post by benstern
Wed Jun 28, 2006 5:37 pm
what is the easiest way to make a spark strip?

Last post by saladtossser
Replies: 10
by aperro13 » Tue Jun 27, 2006 2:44 pm

First post

what is the easiest way to make a spark strip?

Last post

could you make a spark strip with a bolt and having washers spaced by little pices if rubber?

nylon bolt maybe?

10 Replies

3774 Views

Last post by saladtossser
Wed Jun 28, 2006 12:50 am
Easy o-ring grooves.

Last post by frogy
Replies: 5
by )DEMON( » Tue Jun 27, 2006 5:50 am

First post

This is an easy way of making o-ring grooves with few tools.
The tools you will need are: hack saw and pliers.
What you need: PVC and o-ring about...

Last post

Doesn't anyone have a stove? lol

I just mark the PVC where I want the grooves at and then boil it and cut down the place where the marker is......

5 Replies

4873 Views

Last post by frogy
Tue Jun 27, 2006 1:50 pm
bb hybrid maybe

Last post by Atlantis
Replies: 6
by singularity » Mon Jun 26, 2006 11:39 pm

First post

okay i dont no if any1 here will no wat im talking about but ill put it up any way, i was thinking about making a bb hybrid, it would combine an air...

Last post

Some guy made a Railgun with a pneumatic injector, I beleive the same concept could apply.

6 Replies

2508 Views

Last post by Atlantis
Tue Jun 27, 2006 1:39 pm
SCH-160 Steel pipe

Last post by boilingleadbath
Replies: 4
by D-Roc » Tue Jun 27, 2006 12:17 am

First post

What is the maximum PSI for SCH-160 steel piping?

This stuff can be found at mcmaster.com. They are VERY pricy.

I plan on building a high...

Last post

2 sch 40 steel pipe is rated to more than 1000 psi, I believe.
Don't wast your effort buying 1 steel pipe in that diameter.

I don't know about using...

4 Replies

2088 Views

Last post by boilingleadbath
Tue Jun 27, 2006 12:54 pm
Portable Pnuematic

Last post by pneumaticman
Replies: 26
by Cole » Fri May 27, 2005 2:34 am
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Is there any way to make a powerful portable pnuematic gun. I thought about a hand pump but I dont think that would create enough pressure.

Last post

i think that a regular old pump for like basketballs and stuff would work fine but after like 100psi its probabely insanely hard to pump
26 Replies

9092 Views

Last post by pneumaticman
Tue Jun 27, 2006 7:52 am
question about measuring peak pressure

Last post by carlbelcher
Replies: 6
by dan116 » Mon Jun 26, 2006 8:19 pm

First post

will a peak pressure measuring set up for a regular propane cannon work. I know how it works on a hybrid but will it work the same way on a regular...

Last post

It will work! The temperature doesn't matter. Even if the pressure did drop with the temperature it would still give you time to read the gauge....

6 Replies

2124 Views

Last post by carlbelcher
Tue Jun 27, 2006 5:54 am
Piston problem.

Last post by )DEMON(
Replies: 6
by )DEMON( » Mon Jun 26, 2006 4:10 pm

First post

Well, I don't know what I can get to seal my piston right, it has to seal against a odd surface.What can I do :?: Mabey my design isn't right,all I...

Last post

Thanks,you just gave me a few ideas,I'll be sure to test some of those 'toilet washers'.

6 Replies

1633 Views

Last post by )DEMON(
Tue Jun 27, 2006 5:07 am
Deodorant injection idea?

Last post by ProfessorAmadeus
Replies: 9
by Mihlrad » Mon Jun 26, 2006 8:40 pm

First post

I have decided to try to design a setup to allow direct injection of deodorant instead of propane because my parents dont like the idea of my...

Last post

benstern your avatar really helped with the emotions on your last post. For the injection thing what you have right now will work good and do you...

9 Replies

2383 Views

Last post by ProfessorAmadeus
Tue Jun 27, 2006 2:21 am
is it possible

Last post by A-98
Replies: 4
by A-98 » Sun Jun 25, 2006 10:29 pm

First post

is it possible to have multiple small barrels in a piston or diaphragm.
like you could have 4-6 6mm airsoft barrels inside a 1 pston gun making an...

Last post

thanks for the info. i looked at those fittings a few days ago and they would be perfect, however they are for large pipes.

incase you were...

4 Replies

1194 Views

Last post by A-98
Tue Jun 27, 2006 12:29 am
Speed Record

Last post by benstern
Replies: 17
by cannon freak » Sun Jun 25, 2006 1:24 pm
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Could someone tell me what the highest speed any one has been able to shoot something.. By using some form of potato cannon wheather it be...

Last post

wait were you talking about my launcher?
(punches in 70% for burst disc>
SWEET!!
billard ball with a 20' long 2.5 SCH-80 barrel - 1699 feet per...
17 Replies

8945 Views

Last post by benstern
Mon Jun 26, 2006 11:27 pm
Semi Auto BB

Last post by singularity
Replies: 13
by PCGUY » Sat Feb 26, 2005 10:00 pm

First post

SEMI AUTO BB

Provided By - BillyBobJoe

The piston is in the forward position in the diagram. When the piston is in the back position, a BB falls...

Last post

i made a gun very similar to the one you are tring to make, it was a complete failure only because the bbs (airsoft) wouldnt stay in the barrel they...

13 Replies

8259 Views

Last post by singularity
Mon Jun 26, 2006 11:21 pm
Looking to paint my gun, some help please.

Last post by aperro13
Replies: 15
by Mihlrad » Fri Jun 23, 2006 7:41 am
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I wanted to paint my gun, cause i did a really messy job on the purple primer, what kind of paint would i need to painnt the gun with? Also i imagine...

Last post

$4 is not to much. thanks
15 Replies

4674 Views

Last post by aperro13
Mon Jun 26, 2006 11:06 pm
whats the best way to paint a cannon

Last post by aperro13
Replies: 2
by aperro13 » Mon Jun 26, 2006 9:27 pm

First post

whats the best way to paint a cannon

Last post

found it. thanks man

2 Replies

1395 Views

Last post by aperro13
Mon Jun 26, 2006 10:40 pm
Dual Chambered Combustion

Last post by carlbelcher
Replies: 9
by cannon freak » Mon Jun 26, 2006 10:25 am

First post

Im getting kind of bored working on my hybrid design so I wanted to start a small little 4 day project and make another normal combustion. I want to...

Last post

I wasn't saying that I don't like the idea, because I do. I was just saying that you don't need to worry about getting it all to ignite. Also...

9 Replies

5560 Views

Last post by carlbelcher
Mon Jun 26, 2006 10:25 pm
Any one using Stun Guns for ignition?

Last post by aperro13
Replies: 8
by aperro13 » Mon Jun 26, 2006 7:18 pm

First post

Any one using Stun Guns for ignition? Does it work well.

Last post

sweet man thanks

8 Replies

3049 Views

Last post by aperro13
Mon Jun 26, 2006 10:12 pm
Pump-Action

Last post by Atlantis
Replies: 9
by PCGUY » Sat Feb 26, 2005 9:58 pm

First post

PUMP ACTION

Provided By iMacThere4iAm -

Pump-Action Animation (420kb)

Provided By iMacThere4iAm -

Last post

You just kicked a 4 month old topic, with a double post nonetheless. They never gave any dimensions, obviously it can be made smaller. Besides, was...

9 Replies

10514 Views

Last post by Atlantis
Mon Jun 26, 2006 8:54 pm
Question about Air Chambers/Tanks

Last post by Mugumaster
Replies: 13
by Mugumaster » Sun Jun 25, 2006 5:19 pm

First post

Well hello everyone, i want to make myself a little Air pressure Spud gun to fire little darts at a dartboard as my first Spud project.
But im kinda...

Last post

I did something other today, i had to go to 4 different construction markets (?) and 1 corporation that sells construction material to find what i...

13 Replies

4665 Views

Last post by Mugumaster
Mon Jun 26, 2006 4:01 pm
High Pressure Pump?

Last post by boilingleadbath
Replies: 5
by cannon freak » Sat Jun 24, 2006 5:25 pm

First post

I was thinking that maybe if you were to take a compressor and pump up a reservoir to the highest pressure that the compressor could go to. Then that...

Last post

You don't need a fancy, highly accurate scale; pressurizing a 1L chamber to ~260 psi (22.4 atm) requires 44g of dry ice, so errors as big as several...

5 Replies

2345 Views

Last post by boilingleadbath
Mon Jun 26, 2006 2:56 pm
Bolt Air Valve

Last post by boilingleadbath
Replies: 14
by Atlantis » Fri Jun 23, 2006 9:12 pm

First post

In this valve, the chamber is sealed off by the bolt, when air is injected behind the bolt it is pushed forward and allows the chamber air to vent...

Last post

No, the 1.625 is an OD. You'd make a piston that would slide in the sdr 21. Stretching it to the 1.9 or so required to make it fit in 2 sch 80 isn't...

14 Replies

4077 Views

Last post by boilingleadbath
Mon Jun 26, 2006 2:51 pm

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