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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

1568585 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

752639 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

409703 Views

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

Topics

C:B ratios fixed barrel length with enlarged chamber

Last post by boilingleadbath
Replies: 4
by durckelg » Sun Jul 02, 2006 10:14 pm

First post

I have a question about C:B ratios for metered propane combustions canons. I know from reading the test results at that the optimal C:B ratio for a...

Last post

Yes, a larger chamber (to a degree) will give you more power.
The 'degree' being best illusrated by the salt-mine scenario: the gasses might take 15...

4 Replies

1437 Views

Last post by boilingleadbath
Mon Jul 03, 2006 12:57 pm
Ninjas triggered burst disk idea

Last post by saladtossser
Replies: 3
by Urban Ninja » Mon Jul 03, 2006 8:19 am

First post

The idea is that you have two disks and in between a pilto valve like a solenoid or something. Maybe even a blowgun? The first disk is stronger than...

Last post

when the high pressure air hits the valve, there is a chance that the valve will jump open.

3 Replies

1661 Views

Last post by saladtossser
Mon Jul 03, 2006 12:35 pm
My meter costed me 90 bucks...where did i go wrong?

Last post by iamthewalrus
Replies: 17
by Mihlrad » Sun Jul 02, 2006 2:33 pm
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Does it seem a little odd that from buying the parts at home depo and lowes, my meter costed me about 90 dollars? my reciept from home depo was 68.51...

Last post

my meter probably cost me about $30: $20 regulator, $10 for pipe and fittings. I made my whole meter out of pvc and it works just like a metal one, i...
17 Replies

4111 Views

Last post by iamthewalrus
Mon Jul 03, 2006 10:55 am
Schreader Valve Position

Last post by noname
Replies: 6
by MrCrowley » Sun Jul 02, 2006 3:58 pm

First post

Where is the best place to place a schrader valve on your pneumatic gun

Last post

Rubber ones work, but yes, metal ones are the better choice. Here, the metal ones are 10 cents more but oh well. I just go to the bike shop and get...

6 Replies

4167 Views

Last post by noname
Mon Jul 03, 2006 9:38 am
more accurate bbmg

Last post by spudshot
Replies: 8
by singularity » Sun Jul 02, 2006 5:31 pm

First post

i jus built vortex bbmg, i used a 5/16 brake line for the barrel and when i fire it the bbs seem to spread out in a shotgun type pattern. is this...

Last post

longer barrel, make sure theres no burrs at either end of the barrel, you can also cut a thin channel in the end of the barrel on the top so it just...

8 Replies

2908 Views

Last post by spudshot
Mon Jul 03, 2006 8:36 am
expanding gasses

Last post by spudshot
Replies: 3
by i learn quickley » Sun Jul 02, 2006 12:23 am

First post

ive built a combustion cannon out of a pill bottle with a child proof lock but to the piont my question is will a 1/2 inch barell allow the gasses to...

Last post

too much fuel is not the reason, if you add too much fuel, it just wont fire, the 1/2 barrel is choking the pressure too much and its pressing out on...

3 Replies

2861 Views

Last post by spudshot
Mon Jul 03, 2006 8:33 am
piston not opening.

Last post by )DEMON(
Replies: 17
by )DEMON( » Sat Jul 01, 2006 1:48 am
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I have finally got my piston to close and seal but now when I exhaust all the air from behind it with my sprinkler valve it dosn't open and the...

Last post

Still not working and I am running out of ideas.On the obove design I just made a small equilization hole and not the one way thing.This sucks.
17 Replies

5358 Views

Last post by )DEMON(
Mon Jul 03, 2006 7:18 am
Leaf blower powered vortex airsoft gun...?

Last post by Pete Zaria
Replies: 13
by Pete Zaria » Sun Jul 02, 2006 4:10 am

First post

So I have a spare gas-powered leaf blower laying around. I was thinking about the way that vortex-style airsoft guns operate, and was wondering if a...

Last post

Thanks for the replys, guys.

Care to draw up a quick mspaint sketch of a leaf blower-powered cloud BBMG? :D

Peace,
Pete Zaria.

13 Replies

7897 Views

Last post by Pete Zaria
Mon Jul 03, 2006 2:27 am
Solenoids

Last post by carlbelcher
Replies: 1
by noname » Sun Jul 02, 2006 4:14 pm

First post

If I used a solenoid valve with a CO2 regulator would the Co2 keep coming out the barrel or would I get multiple shots? Need replys
Thanks

Last post

I'm pretty sure the valve would stop the flow of co2 as soon as you released the trigger just like it would with water in a sprinkler system.

1 Replies

2487 Views

Last post by carlbelcher
Mon Jul 03, 2006 1:54 am
i just thought you guys might apreciate this vid

Last post by frogy
Replies: 10
by A-98 » Sun Jun 04, 2006 11:36 pm

First post

not only are the slow-mo shots good but it funny and shows how.....practical(no)....useful(no).....ah thats it , useless ,potato guns can be

Last post

MythBusters used a camera that was 17,000 fps for something they shot, I just remember hearing it :D ....

This is a really sweet movie, I really...

10 Replies

2801 Views

Last post by frogy
Mon Jul 03, 2006 12:17 am
need help on bb sniper

Last post by Benny
Replies: 2
by singularity » Sun Jul 02, 2006 11:20 pm

First post

i want to make an accurate small caliper pneumatic bb gun, i have made many in the past and just recently made a vortex bbmg, but none of them are...

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Go to a model shop/hobyshop and they have tubing in brass and alluminium piping from 1/2 millimetre to 1/2 inch.

2 Replies

1355 Views

Last post by Benny
Mon Jul 03, 2006 12:08 am
Flea Market.

Last post by jjk92
Replies: 14
by SpudStuff » Sat Jul 01, 2006 9:53 pm

First post

I just got back from the local flea market. there was a guy there selling all sorts of scientific pnumatic parts. I scored 3 2.5 inch Glyceriene...

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if you mall me a check or something i guess i could sell you some stuff i could only sell you the doubles i have left which is about 100 you can...

14 Replies

3099 Views

Last post by jjk92
Sun Jul 02, 2006 8:34 pm
finished my meter, question about it.

Last post by Mihlrad
Replies: 3
by Mihlrad » Sun Jul 02, 2006 10:34 am

First post

I finished building my propane meter, it seems to work and i set my regulator to 60 psi. My question is, when i release the propane from the meter...

Last post

kk yea thats what it sounds like a puff of air, and no frogy i didnt aquire the pipes i need yet to build it. I have to make a home depo and paint...

3 Replies

1086 Views

Last post by Mihlrad
Sun Jul 02, 2006 11:45 am
Airgun Valve/Hammer

Last post by )DEMON(
Replies: 5
by Urban Ninja » Sat Jul 01, 2006 9:03 am

First post

Does anyone have any experience with airguns and their internals? I think this is how the valve works roughly it is just a quick paint drawing and...

Last post

I think you might be able to make something like this with a brass one way valve

5 Replies

10184 Views

Last post by )DEMON(
Sun Jul 02, 2006 8:02 am
new pump action.

Last post by )DEMON(
Replies: 5
by )DEMON( » Wed Jun 07, 2006 3:55 pm

First post

Like always this is simple, so I will leave you to figure this out yourselves, unless you ask me to explain it.

Last post

It wouldn't be an issue and you could always make the magazine air tight (with and o-ring).

5 Replies

6058 Views

Last post by )DEMON(
Sun Jul 02, 2006 7:40 am
schrader valve?

Last post by Benny
Replies: 11
by haulinick » Thu Jun 29, 2006 9:22 pm

First post

I've been having trouble finding a schrader valve for my latest cannon. I just took an old bike tire and cut it off then epoxied the hell out of it...

Last post

Or go to a store like super cheap auto well any auto store, but dont look in the compressor section.
look in the tyre accesorys section.

11 Replies

5111 Views

Last post by Benny
Sun Jul 02, 2006 2:27 am
Yay Air Compressor

Last post by Benny
Replies: 7
by SpudStuff » Sat Jul 01, 2006 5:05 pm

First post

I just got a 3 Gal craftsman Air Comp. from sears for $99.99:D :D :D :D

Its asome it says it does 125 psi but with a little ajustment it does 150....

Last post

Thanks spudstuff, finaly someone posted! :D

7 Replies

1616 Views

Last post by Benny
Sat Jul 01, 2006 8:57 pm
Can i use metric taps and die for propane meter?

Last post by frogy
Replies: 3
by Mihlrad » Sat Jul 01, 2006 5:01 am

First post

my dads friend let me borrow a 40 piece tap and die set, metric combination thread, i needed npt right?

The lables on the die and taps read things...

Last post

You need 1/8 NPT-27 for using 1/8 fittings and
1/4 NPT-18 for using 1/4 fittings...

Like carl said, metric tap and die for metric fittings and...

3 Replies

1436 Views

Last post by frogy
Sat Jul 01, 2006 6:54 pm
Lawn Genie sprinkler valve

Last post by Benny
Replies: 15
by huse_spud » Wed Jun 07, 2006 9:30 pm
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can i modify a 1 inline lawn genie without flow control?

i want to order one from homedepot.com

click on the 1 lawn genie on the 2nd row down...

Last post

dont use any glue when you put it back together.
15 Replies

4427 Views

Last post by Benny
Sat Jul 01, 2006 6:46 pm
Propane Meter How-To

Last post by frogy
Replies: 5
by frogy » Thu Jun 29, 2006 10:12 pm

First post

Mihlrad asked me how to make one so I went into research and made one of my facny ass paint diagrams again, this one took hours....

So here's a...

Last post

I think he was talking about the link Benny gave, that one is un-metered, but mine isn't....

I'm hoping to make one of these soon, it'll cost me...

5 Replies

4137 Views

Last post by frogy
Sat Jul 01, 2006 6:38 pm
Wtf is joels thunderpipe anyway?

Last post by SpudStuff
Replies: 8
by Mihlrad » Fri Jun 30, 2006 6:16 pm

First post

I been wondering wtf this thing is for a long time now, he calls it the thunderpipe...

the video is just a massive fireball that mushroom clouds...

Last post

looks exactly like my garadge. many houses looh the same on the outside

8 Replies

2447 Views

Last post by SpudStuff
Sat Jul 01, 2006 4:57 pm
wow joel eat your heart out.

Last post by jrrdw
Replies: 13
by Mihlrad » Fri Jun 30, 2006 4:36 pm

First post

WOW look at this monster

Tell me that thing is not beautiful... omg i want it.

Last post

I likeum both, packum full, letum fly!

13 Replies

6138 Views

Last post by jrrdw
Sat Jul 01, 2006 3:45 pm
Air compressor/bike pump alternative?

Last post by WOW!!
Replies: 7
by mdjobadze » Fri Jun 30, 2006 4:31 pm

First post

Well i made pneumatic gun out of steel and metal and for the valve i have a plastic sprinker valve which is electronically hooked up to a door bell...

Last post

You can use argon. At the welding place I go to you can get a argon cylinder for cheap to rent. If you dont want to do that invest some money in to a...

7 Replies

4313 Views

Last post by WOW!!
Sat Jul 01, 2006 3:20 pm
MAPP or propane?

Last post by spudmonkey
Replies: 5
by Mihlrad » Wed Jun 28, 2006 4:13 pm

First post

Sorry for asking all these spoon feeding questions but ive never really used gasses for things like a spudgun. Is mapp or propane a better choice for...

Last post

there is 16 oz in a mapp gas cilinder and 14.1 in a propane, i wouldnt really mind the extra $ but its up to u

5 Replies

2938 Views

Last post by spudmonkey
Sat Jul 01, 2006 11:51 am
Hammer Type Valve

Last post by Shrimphead
Replies: 7
by Urban Ninja » Fri Jun 30, 2006 2:28 am

First post

I obviously did not invent this valve but i wondered if any one here has ever tried it? This could be an easy semi auto and make a good bb gun. Do...

Last post

I'm sorry about the double post, I didn't mean to. I want to see a pic of what you are saying Atlantis.

7 Replies

2912 Views

Last post by Shrimphead
Fri Jun 30, 2006 11:25 pm

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