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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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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

631992 Views

Last post by quinn whitsitt
Fri Feb 09, 2024 2:38 pm
PVC Pipe Info

Last post by PCGUY

by PCGUY » Wed Oct 09, 2013 1:38 pm

PVC Pipe Info

PVC is used by plumbers, pool installers, and so on, and local building and construction regulations set the safety and materials...

0 Replies

49549 Views

Last post by PCGUY
Wed Oct 09, 2013 1:38 pm
The Offcial Machinist Thread: Revised 01/04/2014

Last post by Yexinss
Replies: 1097
by jrrdw » Tue Aug 02, 2011 5:54 am
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This is where members who need help getting machining done to their spudgun parts. There will be some guide lines and they are as follows:...

Last post

As my title described, 2k for modifying Daytona Recoil system to shoot Nerf darts. Full mechanical no wires no battery only HPA. If you can machine...
1097 Replies

730688 Views

Last post by Yexinss
Wed Aug 25, 2021 12:22 pm
Good Deals Thread

Last post by PaperNinja
Replies: 41
by clemsonguy1125 » Wed Aug 11, 2010 8:01 pm
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I keep seeing good deals on ebay for cheap parts that would be great for spud guns but not the kind I build. I figured it would be a good idea to...

Last post

$550 4500psi compressor
41 Replies

140821 Views

Last post by PaperNinja
Wed Dec 05, 2012 7:08 pm
Launcher Failure Analysis Log

Last post by SEAKING9006
Replies: 32
by Velocity » Sun Apr 15, 2007 11:28 am
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First post

The idea behind this thread was taken directly from a sticky on the Spudtech forums, seen at I, along with several other members, believe that this...

Last post

I never made my inside out sleeve valve because I didn't know how to use o-ring, most important of all don't try gluing them in place, second if its...
32 Replies

172057 Views

Last post by SEAKING9006
Fri Jun 27, 2008 8:11 pm
Golf Ball Barrel FAQ

Last post by K8TOW
Replies: 34
by squeaks » Wed Jan 24, 2007 6:42 pm
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Okay, so one of the most asked about barrel is the golf ball barrel. Here are some frequently asked questions(and some unfrequent ones too).

Q: Why...

Last post

I use pvc plugs and caps
34 Replies

260244 Views

Last post by K8TOW
Thu Mar 16, 2023 5:22 am
Ammo Ideas

Last post by quinn whitsitt
Replies: 359
by PCGUY » Tue Apr 04, 2006 10:48 am
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First post

Ammo

I have put together a few ammo ideas for different size barrels. All pipe is PVC unless otherwise stated. If you think any ammo ideas should...

Last post

help sorry i typed to fast
359 Replies

5098301 Views

Last post by quinn whitsitt
Thu Feb 15, 2024 11:44 am

Topics

Buying Clippard components

Last post by btrettel
Replies: 10
by btrettel » Wed Jan 06, 2010 3:54 pm

First post

I just got off the phone with some guy at N.B. Cochrane . These guys are who Clippard recommended for local service (They cover Maryland and some of...

Last post

For those ordering from N. B. Cochrane, expect a wait when ordering something they don't have in stock. I ordered shortly before the first post and...

10 Replies

4177 Views

Last post by btrettel
Fri Jan 15, 2010 4:09 pm
NSF-PW Sched 40 Reducing Couplings

Last post by potatoflinger
Replies: 1
by torquey » Tue Jan 12, 2010 7:55 pm

First post

There's nothing wrong with reducing couplings other than most of them not being pressure rated, correct? I have the good ones available locally and...

Last post

You should be fine with that one because it is labeled nsf-pw, but a majority of the reducers in that style are not pressure rated (nsf-dwv). That...

1 Replies

1332 Views

Last post by potatoflinger
Tue Jan 12, 2010 8:03 pm
Drumsticks for 1/2" Barrel

Last post by torquey
Replies: 5
by Lokoyo » Wed Dec 30, 2009 6:13 pm

First post

I used the search function to see if anyone has thought of this and I didn't get any relevant results.

So today I was bored so I decided to make...

Last post

I would think that cutting these down to an inch or so and boring a big hole in the back end would work alright?...

5 Replies

2393 Views

Last post by torquey
Tue Jan 12, 2010 5:42 pm
1.5 inch sdr 21

Last post by tonnor
Replies: 9
by tonnor » Sun Jan 10, 2010 7:44 pm

First post

I finished my tennis ball cannon today and now want to change barells and shoot golf balls.So heres the deal does anyone have any sdr21 1.5 inch they...

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Thanks for the info.Has anyone ever sleeved this pipe with anything other than scheduled 80 pipe.I cant buy schedule 80 pipe local.Also trying to...

9 Replies

4418 Views

Last post by tonnor
Tue Jan 12, 2010 3:27 pm
4 inch pressure rated pvc anyone?

Last post by Biggie
Replies: 8
by tonnor » Sun Jan 03, 2010 10:50 pm

First post

Me again back from lowes and the local hardware store.They do not sell 4 inch pressure rated pvc only foam core which i believe wont work.Is this...

Last post

Savko.com

Just ordered all of my 4 fittings from them, all pressure rated and Lasco brand.

8 Replies

5620 Views

Last post by Biggie
Sat Jan 09, 2010 1:50 pm
Question: spray paint and wood.

Last post by jimmy101
Replies: 9
by chinnerz » Wed Jan 06, 2010 7:13 am

First post

So my question is whether i can use some spray paint on a wooden stock i just made.
Do i need to do anything besides some light sanding?

More info:...

Last post

Regular paper will probably work though it'll be a bit slower since it is much smoother than grocery bag paper.

The old style brown wraping paper...

9 Replies

2330 Views

Last post by jimmy101
Thu Jan 07, 2010 11:41 am
end caps

Last post by cfb_rolley
Replies: 18
by cfb_rolley » Thu Dec 31, 2009 7:53 am
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hi, i'm new at spudding, i built my first simple linear spray and pray a while ago, installed a chamber fan and it worked great, 90mm x 0.5m chamber...

Last post

the new end cap works, reliability is about 9/10 shots work perfectly but it started firing every time once i changed the igniter. i will post some...
18 Replies

6838 Views

Last post by cfb_rolley
Thu Jan 07, 2010 6:56 am
ext. ballistics simulation software - chairgun pro for free

Last post by psycix
Replies: 1
by POLAND_SPUD » Sat Jan 02, 2010 1:35 pm

First post

you can download chairgun pro for free from this site ->

clicky

IMO it's not as simple to use as chairgun 2 but there are a couple of changes...

Last post

I don't get why one would limit a certain input value on a simulator.
Sure, you can make the simulator give a warning, but restricting it? Whats the...

1 Replies

2823 Views

Last post by psycix
Sat Jan 02, 2010 1:41 pm
"Professional" loctite epoxy warning

Last post by Joshatdot
Replies: 8
by VH_man » Sun Nov 22, 2009 8:58 am

First post

The other day, I went to go pick up some epoxy for my new cannon. Usually, I buy these little tubes of epoxy that have a self-mixer at the end that...

Last post

I used ACE Plastic Repair Epoxy (SKU 17394) for glueing a 65lb magnet to a 3in thinwall PVC cap.

MAN this stuff smelled so chemically when I was...

8 Replies

4111 Views

Last post by Joshatdot
Thu Dec 31, 2009 8:29 am
Material for snowball cannon?

Last post by psycix
Replies: 10
by JEK3 » Mon Dec 21, 2009 10:14 pm

First post

I am looking to make a snowball cannon (just got 15-18 over the weekend). I would prefer to work in PVC, but that would be kind of dangerous in the...

Last post

Which is one of the reasons I switched over to metal cannons. :)

10 Replies

4068 Views

Last post by psycix
Fri Dec 25, 2009 6:12 am
Getting delicate projectiles moving

Last post by Technician1002
Replies: 5
by artillerycreations » Wed Dec 23, 2009 4:25 pm

First post

I just wanted to shine the light on pool floation devices or noodles as i call them. They are extremely low density(who woulda guessed) and make...

Last post

And the hipster has a teensy weensy bit of kick when I launch 24oz monster cans full of water at 150psi... :twisted:

I had an adult drop the cannon...

5 Replies

2096 Views

Last post by Technician1002
Thu Dec 24, 2009 3:51 pm
Projectile Stabilization

Last post by McCoytheGreater
Replies: 18
by PVC Arsenal 17 » Fri Nov 27, 2009 11:26 pm
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First post

I'm interested in shooting this:

Out of a spud gun such that the nail sticks into a wooden target.

What is it?

It's the piercing bolt I used in...

Last post

I've seen their work. Do they make 3 rounds?
18 Replies

7978 Views

Last post by McCoytheGreater
Tue Dec 15, 2009 3:15 pm
My new machining tools.

Last post by psycix
Replies: 21
by psycix » Wed Dec 09, 2009 10:06 am
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This just arrived! :D *happiness*
5 DIN 5157 BSP tap sets! (alias G or pipe thread )
BSP is like the european NPT.

I bought the following sizes:...

Last post

I don't really pay attention to tapered threads, I just tighten stuff down hard with a lot of PTFE and it'll seal. Most of the time one will be...
21 Replies

7872 Views

Last post by psycix
Fri Dec 11, 2009 7:35 am
12 Gram CO2 Adapter

Last post by Solar
Replies: 15
by csgunner » Thu Dec 18, 2008 5:59 pm
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First post

Alright -

I was looking on spudtech.com the other day and say a small gun, called the TBL250LP , used to launch tennis balls

It had a 12 gram CO2...

Last post

The basic ASA adapter is called a duckbill that attaches with two points under the grip frame. You can find quick change C02 systems and if you are...
15 Replies

9390 Views

Last post by Solar
Fri Dec 11, 2009 1:38 am
unstabilised projectiles

Last post by POLAND_SPUD
Replies: 4
by jackssmirkingrevenge » Wed Dec 09, 2009 1:05 am

First post

Just a point about projectiles without gyroscopic/drag stabilisation, they start to tumble almost immediately after leaving the muzzle. Not a...

Last post

thx, rocksim can use barrowman stability equations

I am really interested if it's cd predictions are accurate... it's not that hard to design a drag...

4 Replies

1634 Views

Last post by POLAND_SPUD
Wed Dec 09, 2009 9:47 am
Problems with piston sealing face, thinking of sponge rubber

Last post by limbeh
Replies: 5
by limbeh » Mon Dec 07, 2009 10:09 pm

First post

The usual same problem, piston can't seal.

I've been reading, but then and again materials are much harder to find in my country, so I can't use...

Last post

I think I'll do that, then I'll report to you all any changes.

Thanks.

5 Replies

1907 Views

Last post by limbeh
Tue Dec 08, 2009 9:02 am
Arrow head's as projectiles

Last post by bradisfun
Replies: 4
by bradisfun » Tue Dec 08, 2009 5:44 am

First post

well i had an idea when i was selling my old archery gear
what if i could use arrow heads (with the part that sticks out to go into the shaft cut...

Last post

ok thanks i think i will do thati will def's post some pic's

4 Replies

1489 Views

Last post by bradisfun
Tue Dec 08, 2009 6:58 am
QEV Valve Help

Last post by csgunner
Replies: 2
by csgunner » Mon Dec 07, 2009 9:22 pm

First post

I was looking to buy a super-quick exhaust valve from this website:

I have never used a QEV (or piston) valve and had some questions. If there is a...

Last post

thanks, search never turn up results for me

2 Replies

3540 Views

Last post by csgunner
Mon Dec 07, 2009 9:54 pm
What is this?

Last post by POLAND_SPUD
Replies: 6
by achs_xc » Tue Dec 01, 2009 8:50 pm

First post

What is the gray box? Is there an advantage to using it?

Last post

it's just a QEV.... as you can see the valve is machined from a block of aluminium... a lot of different valves are built in this way

6 Replies

2935 Views

Last post by POLAND_SPUD
Wed Dec 02, 2009 9:29 am
Coaxial question

Last post by kenbo0422
Replies: 5
by achs_xc » Mon Nov 30, 2009 9:01 pm

First post

In a coaxial gun that is 12 or greater is there a need to have the barrel supported by something? Is there an optimal length to use? I am having a...

Last post

To keep the alignment intact and to keep it sealing and firing consistently you'll want to support the end of the barrel inside the chamber. Epoxy...

5 Replies

2151 Views

Last post by kenbo0422
Tue Dec 01, 2009 6:51 am
Question for experienced spudders: Is it safe?

Last post by Technician1002
Replies: 8
by skyjive » Thu Nov 26, 2009 4:38 pm

First post

I recently realized that the old helium tank I have lying around would make a great pressure vessel. But as far as I can tell, the helium inside was...

Last post

Technician1002 uses propane tanks. I think this one is quite similar to those.
I believe he brazes a steel pipe nipple into them. Welding is another...

8 Replies

2812 Views

Last post by Technician1002
Sat Nov 28, 2009 6:07 pm
An interesting coincidence...

Last post by D_Hall
Replies: 6
by D_Hall » Wed Nov 25, 2009 11:52 am

First post

20 gauge shotgun, nominal bore: 0.615

seamless 3/4 pipe, schedule 160, nominal bore: 0.614

I'm thinking that sabots/slugs intended for the 20...

Last post

When these barrels are tapered how can they be gaged by sch ? The breech's are all ways (to my knowledge) thicker then the muzzle's.
Shotgun barrels...

6 Replies

1865 Views

Last post by D_Hall
Wed Nov 25, 2009 1:11 pm
Emulating ground finishes?

Last post by inonickname
Replies: 5
by inonickname » Fri Nov 20, 2009 6:03 am

First post

I'm looking for an attachment to buy (or make) for my lathe that can emulate or create a ground finish. I tried using an aluminum oxide stone though...

Last post

I was more looking for a toolbit that could simply be held and advanced along the work as usual, though with a spark out ground finish. I may make a...

5 Replies

1913 Views

Last post by inonickname
Fri Nov 20, 2009 10:23 pm
Foam core PVC

Last post by spudtyrrant
Replies: 16
by Just1ChanceFree » Mon Nov 16, 2009 8:35 pm
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Anyone happen to know any pressure-specs about foam core pvc? If the anticipated burst pressure is high enough, it might still be safe for use in my...

Last post

you would be better off using 2 pressure rated pipe(which most small hardware stores carry) @ 100psi than 3 non-pressure rated pipe @ 30psi....
16 Replies

14754 Views

Last post by spudtyrrant
Fri Nov 20, 2009 4:50 pm
Magnus effect And You...

Last post by jeepkahn
Replies: 9
by jeepkahn » Tue Oct 13, 2009 2:26 pm

First post

We all know what it is and how it works, But here's an illustration of how powerful it can be...

Yesterday, before it started raining cats and dogs,...

Last post

On my copper cane I found a perfect way to keep the ball from spinning...

I heatshrink yellow wirenuts to them as a tail... since 1/2 type L copper...

9 Replies

2130 Views

Last post by jeepkahn
Thu Nov 19, 2009 12:51 pm

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