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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

655187 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

385806 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

201333 Views

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

Topics

Sprinkler valve pressures

Last post by boilingleadbath
Replies: 1
by Nereth » Sun Aug 13, 2006 8:52 am

First post

Ive got my hands on 2 2400S50H valves, from irritrol. Curiously, they seem to be exact copies of orbit watermaster 1 inchers, except grey and with a...

Last post

Generaly, pressure ratings for pipe have a saftey factor of about 4.
You shouldn't have any problems running them at 150 psi, but generaly keep clear...

1 Replies

1031 Views

Last post by boilingleadbath
Sun Aug 13, 2006 7:58 pm
basic over/under air gun

Last post by Bluetooth
Replies: 12
by mdangle » Wed Aug 09, 2006 8:26 am

First post

Hello all. i'am new to the forums here i have been building guns for about 3 years on and off... mostly all combustion type guns. Here is the most...

Last post

haha dude dont shoot things that breath
lol :lol:. sorry couldn't stop myself

12 Replies

3902 Views

Last post by Bluetooth
Sun Aug 13, 2006 6:16 pm
Super sonic Potato Gun

Last post by CpTn_lAw
Replies: 35
by cannon freak » Fri May 12, 2006 9:18 pm
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I was wondering if anyone could help me with building a super sonic potato gun. I would really like to know if there is any mathimatical equation to...

Last post

Some people are scared of direct relations with others, that's why they go in the forums, they can say whatever they want, there wont be any direct...
35 Replies

14123 Views

Last post by CpTn_lAw
Sun Aug 13, 2006 5:49 pm
ggdt my gun

Last post by ProfessorAmadeus
Replies: 4
by ProfessorAmadeus » Sat Aug 12, 2006 11:55 pm

First post

Could someone ggdt my gun. I think it wont download to my computer for some reason. Its got a 32 cubic in chamber with a pnuematicly actuated...

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It does some good damage.But really only 284 feet per second? i have the gun i based my off of and its bigger but his goes faster.

4 Replies

1154 Views

Last post by ProfessorAmadeus
Sun Aug 13, 2006 1:07 pm
Laser Guidance

Last post by Biopyro
Replies: 14
by PCGUY » Sat Feb 26, 2005 10:26 pm

First post

LASER GUIDANCE

Provided By Latke -

To see the rest please click on the picture.

Provided By Latke -

Last post

It doesnt really work that well since the cannons don't shoot in a proper straight line. Once you get to know your gun, you know what to do to make...

14 Replies

14268 Views

Last post by Biopyro
Sun Aug 13, 2006 7:28 am
Rail gun

Last post by CpTn_lAw
Replies: 20
by CpTn_lAw » Wed Aug 09, 2006 11:31 am
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hey there everybody! I've been looking over the web to find infos concerning the theory behind rail guns, and, i found a few web sites (note ) that...

Last post

hey thx for the advise, i might get more capacitors to make it more powerful. and perhaps have a more flashing muzzle flash.
20 Replies

7087 Views

Last post by CpTn_lAw
Sun Aug 13, 2006 5:56 am
Large ball valve small chamber

Last post by WOW!!
Replies: 5
by frankrede » Sat Aug 05, 2006 1:49 am

First post

Ok, ball valves constrict flow. We all know that but say that I had a 1 1/2 chamber with a 2 in ball vave with a 1 in barrel would the larger valve...

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Your best bet would be to make it so that springs would open the valve. They have to be tight tho so it will open fast. But if you are going to do it...

5 Replies

1936 Views

Last post by WOW!!
Sat Aug 12, 2006 11:08 pm
connecting Piezo ignitors

Last post by carlbelcher
Replies: 10
by Biopyro » Fri Aug 04, 2006 5:52 am

First post

Does anyone know a way of connecting up (preferrably multiple) piezo cigarette ignitors? I am tyring to connect as many as 10 in series to give a...

Last post

Nope, that setup will only make one spark. You want the middle screw to be not connected, that way it will serve as a bridge for the spark. If you...

10 Replies

3204 Views

Last post by carlbelcher
Sat Aug 12, 2006 7:16 pm
ball valve quesiton

Last post by MrCrowley
Replies: 5
by djt » Thu Jun 15, 2006 4:09 pm

First post

i am wanting to put a spring and pin to open the ball valve on my coaxil piston faster. The pvc valve is relatively new and is pretty stiff, it...

Last post

on my pvc ball valve when it was stiff i opened it up and dryed all the grease and shit thats on the inside up and then used dish washing liquid.

5 Replies

1345 Views

Last post by MrCrowley
Sat Aug 12, 2006 5:24 pm
Weak chamber?

Last post by M3NT4L
Replies: 3
by M3NT4L » Thu Aug 10, 2006 7:12 pm

First post

I painted one of my chmbers for my pneumatic cannon and i didnt like how it looked to i took the paint off with a goop or something like that spray,...

Last post

Thanks because im scared of it bursting, well i dont think it was corrosive even though it left a red tint on the cannon :?

3 Replies

1476 Views

Last post by M3NT4L
Fri Aug 11, 2006 7:14 pm
What about a burst disk acuation

Last post by M3NT4L
Replies: 5
by Steve- » Fri Aug 11, 2006 1:43 am

First post

it would be soo cool, you could charge it and then puncture it.

the only problem would be to puncture it all the way or weaken it so it would blow...

Last post

I thought of somethng like this but eloasing the disk is too annoying, not worth it pston valves are much better in every term.

5 Replies

2303 Views

Last post by M3NT4L
Fri Aug 11, 2006 6:56 pm
New Here.

Last post by M3NT4L
Replies: 12
by ChunKy » Fri Aug 11, 2006 11:09 am

First post

Hi, my names Max, but you can call me ChunKy...

I visited this site quite a while back, but didn't realise there was a forum, otherwise i would have...

Last post

If i were you i would go with a pneumatic spudgun for the sole reason that if you fire it WILL shoot, and its hard to achieve this with a combustion...

12 Replies

2724 Views

Last post by M3NT4L
Fri Aug 11, 2006 6:40 pm
Need Help GGDT'ing my gun.... Please help...

Last post by spudkpi
Replies: 6
by spudkpi » Thu Aug 10, 2006 7:39 pm

First post

I have just made a coaxial piston cannon and i would liek to GGDT it but i dont know the exact inner and outer dia. of the chamber or the flow coef....

Last post

Yep there it is.... with a paintball it shows 635 ft/s at 80 psi.... thanks guys

6 Replies

1906 Views

Last post by spudkpi
Fri Aug 11, 2006 2:24 pm
Rifled barells

Last post by rna_duelers
Replies: 4
by maniacrobbins » Mon Aug 07, 2006 2:26 pm

First post

Is there a way to rifle a barrel at home without spending much money? (5$ max)?

Last post

There is an easy way to do it,and there is no lathe required at it will cost u no more then $5 if u have a few tools and a few small hardwear...

4 Replies

2196 Views

Last post by rna_duelers
Fri Aug 11, 2006 3:34 am
Check Valve Idea

Last post by Atlantis
Replies: 2
by Atlantis » Thu Aug 10, 2006 10:05 pm

First post

I found a 1.5 Rubber Check Valve, it is the kind with the flap, if a hook was built into the valve to hold the flap shut, the unlatched allowing the...

Last post

Maybe some kind of rod pushing against the flap, something with a little more force.

2 Replies

996 Views

Last post by Atlantis
Thu Aug 10, 2006 10:22 pm
Schrader Valve thread size?

Last post by djt
Replies: 15
by simonr » Mon Aug 07, 2006 2:54 pm
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First post

Anyone know that the thread size is for the bore the schrader insert screws in to is?

I found a reference to the size of the outer stem of a...

Last post

haha i have never seen a sausage gun before. i cant wait to see some damage pics from the 750 psi one when you finish it!
15 Replies

22254 Views

Last post by djt
Thu Aug 10, 2006 7:08 pm
Would this work?

Last post by Mihlrad
Replies: 7
by Mihlrad » Thu Aug 10, 2006 8:14 am

First post

I was wondering if this crap pump would work to fill up a cannon? I imagine im misunderstanding what 250 psi output means but here

i am gonna buy...

Last post

i could also use one of my many rechargeable 12 volt batterys... heavy but portable.

7 Replies

2463 Views

Last post by Mihlrad
Thu Aug 10, 2006 4:08 pm
Possible? Nail gun.

Last post by djt
Replies: 15
by Mihlrad » Tue Aug 08, 2006 5:15 pm
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I want to make a nail gun eventually. No i dont mean a gun that shoots nails through plywood, i mean like a gun that is small and compact, but can at...

Last post

whats wrong with c02? it will end up being cheaper than a regular nail gun and more portable.

and, like shrimphead said, make a system where you...
15 Replies

4170 Views

Last post by djt
Thu Aug 10, 2006 3:08 pm
Combustion Legality In Canada

Last post by Dom
Replies: 3
by cannon freak » Sat Jul 29, 2006 4:53 pm

First post

Can anyone tell me the legality of combustion potato cannons in Canada, Ive already made several but I have no clue whether or not they are legal and...

Last post

There is no Federal or Provincial laws legislating Potato Guns. It is mainly a municipal matter. I think it's pretty much the same in all cities : if...

3 Replies

1720 Views

Last post by Dom
Wed Aug 09, 2006 11:41 am
jail time

Last post by WOW!!
Replies: 23
by johan420 » Tue Aug 08, 2006 1:10 am
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hey, i live in miami and was arrested and charged with discharging a destructive device and was in jail for approximately 11 hours before i was...

Last post

... dude... i highly doubt you happened to have a copy of the ATF letter on you... Stfu...

As for the topic, odds are you wont get anything worth...
23 Replies

5895 Views

Last post by WOW!!
Wed Aug 09, 2006 11:12 am
Compressor for Vortex

Last post by noname
Replies: 2
by noname » Tue Aug 08, 2006 6:58 pm

First post

Can anyone tell me what size of compressor would be suitable for a vortex BBMG? Under $120 would be nice. And do you guys think 80 psi whould shred...

Last post

This looks like maybe but it's only 1 hp.
Long Link

2 Replies

922 Views

Last post by noname
Tue Aug 08, 2006 8:24 pm
Gun Diagram... Need Help

Last post by nicholai
Replies: 11
by chubster » Sat Aug 05, 2006 12:39 pm

First post

Ok, here it is. It's my diagram of a gun im going to start building. It shoots water balloons, but i havnt designed that part yet. All we're talkin...

Last post

when i get bored i shoot rocks from one of my pneumatics, just wrap them in tape so it dont scratch your barrel.

11 Replies

3453 Views

Last post by nicholai
Tue Aug 08, 2006 6:46 pm
Silencing

Last post by MrCrowley
Replies: 14
by mmezz » Sun Jul 23, 2006 5:17 pm

First post

Hi,
I have finally built my dream spud cannon but it is WAY too loud! However, it does fire at least 350 yds.
Here are the specs:
-14 inch barrel...

Last post

yeah i was thinking about that if the projectile deviated at the last slit second and you didnt cut a big enough hole in the tee it could clip it.

14 Replies

4982 Views

Last post by MrCrowley
Tue Aug 08, 2006 3:58 pm
Taping

Last post by noname
Replies: 24
by chubster » Sun Aug 06, 2006 8:22 pm
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Would wrapping the chamber in electrical tape help at all if it were to burst?

p.s. - for pneumatics

Last post

OK, so there's 3 things.
1. Use good pipe that you trust.
2. Sleeve it in ABS, which won't shatter.
3. Put it a strong metal box.

End of dicussion.
24 Replies

6951 Views

Last post by noname
Tue Aug 08, 2006 12:57 pm
new to the game

Last post by MrCrowley
Replies: 20
by silenttear » Sat Aug 05, 2006 7:55 pm
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I just attempted my first gun today. My first test to make sure the gas transfer worked went well, and scared the crap out of me for its loudness....

Last post

I crap

yeah well most of us do frogy :D
20 Replies

5959 Views

Last post by MrCrowley
Tue Aug 08, 2006 12:22 am

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