Ammo & Materials

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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

1340243 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

82704 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

992333 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

278917 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...

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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

288442 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

394945 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

5346069 Views

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

Topics

Q. for the assuies

Last post by ONEWING
Replies: 8
by tghhs » Sat Jan 16, 2010 2:18 am

First post

Hey guys,

Does anyone know the largest size pressure rated pvc at either reece or tradelink? Asking because i've got spud fever again and i'd like...

Last post

That singer was interviewed by an anti reporter and he went on to say Australia's (knee jerk) gunlaws were a good thing and shooting cars with rocket...

8 Replies

3233 Views

Last post by ONEWING
Mon Mar 22, 2010 7:39 am
Elecrical tape

Last post by inonickname
Replies: 7
by metalmeltr » Sat Mar 20, 2010 11:35 am

First post

On a few ocasions I have used electrical tape in place of teflon tape or thread sealant. It works well. I think it worked because the tape is very...

Last post

On two pieces of metal pipe how is the metal going to deform with the help of teflon tape? I have used electrical tap on both metal to metal and...

7 Replies

4546 Views

Last post by inonickname
Sun Mar 21, 2010 3:02 am
hexagonal tube????

Last post by bobgengeskahn
Replies: 4
by bobgengeskahn » Mon Mar 15, 2010 3:37 pm

First post

Hey all,

I've come up with a design for a high pressure, low volume sniper rifle for a airsoft project, and in the nature of airsoft I'm trying to...

Last post

oh, those are very very cool! :D :D hmmmmmmm... back to the drawing board!! :P thanks for the link!

4 Replies

3360 Views

Last post by bobgengeskahn
Wed Mar 17, 2010 3:45 am
Clear 4.5mm tube?

Last post by limbeh
Replies: 4
by verm » Thu Mar 04, 2010 7:03 am

First post

Hi, wondering if anyone has forund a source of clear 4.5mm tube? This would be great for a magazine to identify feeding problems but am at a loss as...

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Go look for PET, clear PVC, acrylic or PC tubing. If you live in the Western world, you should be able to google up some vendors in your area.

The...

4 Replies

2149 Views

Last post by limbeh
Fri Mar 05, 2010 1:40 am
What ammo do you use

Last post by jrrdw
Replies: 1
by metalmeltr » Sun Feb 28, 2010 9:12 am

First post

Even though we all call the guns we build spud guns I personally feel that spud are losing popularity as ammo. So what ammo do you shoot.

Last post

There are all ready alike polls in this section, no need for a new one.

1 Replies

1609 Views

Last post by jrrdw
Sun Feb 28, 2010 9:26 am
Semi-Auto Valve

Last post by POLAND_SPUD
Replies: 13
by qwerty » Sat Feb 27, 2010 10:42 am

First post

For an upcoming semi-auto gun i need a valve that opens and closes very fast at one pull of the trigger but enough to pilot a 15mm piston valve....

Last post

he used the one to the left to pressurise the gun (from chamber side) the one on the right is for piloting...

though keep in mind that you need a...

13 Replies

4156 Views

Last post by POLAND_SPUD
Sun Feb 28, 2010 8:43 am
Removing covering from perspex?

Last post by IMagius
Replies: 3
by inonickname » Thu Feb 25, 2010 4:49 am

First post

I have two 30cm diameter perspex disks which I just cut using a jig I made. Unfortunately, the perspex I made was donated to me. It is fairly old,...

Last post

If Lighter Fluid won't seep into the edges and loosen the bond, I'd try boiling them. It works on every label on any type of Jar or whatever else...

3 Replies

2455 Views

Last post by IMagius
Thu Feb 25, 2010 4:32 pm
Question on steel ammo balls

Last post by jhalek90
Replies: 21
by Gun Freak » Tue Feb 23, 2010 7:49 pm
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I found these steel balls on Fastenal and I was wondering if these would be good for half inch schedule 40 pvp pipe or if they would be too big for...

Last post

Was I mean to somebody who helped me?

Not mean per-say, you just chose to ignore the answers given to you, because you apparently did not want to...
21 Replies

13566 Views

Last post by jhalek90
Wed Feb 24, 2010 8:42 pm
Help with PVC Solvent Welding

Last post by jhalek90
Replies: 9
by alex_esa » Tue Feb 23, 2010 2:44 pm

First post

Hello all.

I'm trying to make a PVC Paintball Sniper but I can't find Primer anywhere. I was wondering if I can use Tangit PVC Cleaner and Cement...

Last post

that was the point of the picture. lol.

That is assuming the place he goes to has PURPLE primer... the can may be a different color and he would...

9 Replies

8133 Views

Last post by jhalek90
Wed Feb 24, 2010 8:38 pm
Steel pipe questions

Last post by jhalek90
Replies: 32
by kjjohn » Tue Oct 13, 2009 6:28 pm
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I am working on building my first hybrid, and I have never worked with metal pipe before, so I have some questions. If I get threaded pipe and...

Last post

Umm.... schedule 40 steel thats only rated to 400 psi????
WHAT?

My pneumatic steel 1'' valve has been used at like... 850. (CO2)
But than again......
32 Replies

10964 Views

Last post by jhalek90
Wed Feb 24, 2010 5:28 pm
Light aluminum gas tanks

Last post by btrettel

by btrettel » Tue Feb 23, 2010 9:56 pm

Is anyone interested in getting some light aluminum gas tanks? These would be good for a light rechargeable medium pressure air source (rated at 240...

0 Replies

2460 Views

Last post by btrettel
Tue Feb 23, 2010 9:56 pm
New Nail Dart Design & Testing

Last post by deathbyDWV
Replies: 75
by boyntonstu » Thu Oct 08, 2009 12:34 pm
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First post

A nail with a paper tail is fine for a blow gun.

Add 400 psi and then what?

I was thinking of using both a nose cone and a tail cone to stabilize...

Last post

Ooooo... :shock: me likey. I'm guessing its for a 1 inch barrel... *cough*like my almost finished hybrid*cough*

edit... Nevermind... You already...
75 Replies

23762 Views

Last post by deathbyDWV
Thu Feb 18, 2010 9:52 pm
Camlocks for quick burst disk/barrel change problem.

Last post by WetWorks
Replies: 9
by Contra » Mon Feb 08, 2010 5:02 pm

First post

I have the sdr21 1.5 in pipe sleeved into a sch 80 2 pipe that is 6.5 feet long. When I attatch it to the camlock that is on my chamber and pick the...

Last post

Contra,

Most camlocks have a rubber gasket (of some thickness, I might add) in the female portion of the coupling.

This will cause at least some...

9 Replies

5749 Views

Last post by WetWorks
Tue Feb 16, 2010 2:02 pm
failure pressure of cylinder with outside pressue?

Last post by ramses
Replies: 2
by ramses » Fri Feb 12, 2010 1:21 pm

First post

I have searched and searched, and I can't find a formula!?! I asked before and D_Hall (who I assume to be correct) told me that it is basically the...

Last post

equations would be nice, since this will be a custom job.

and I don't like to be spoonfed... 8)

2 Replies

1505 Views

Last post by ramses
Sat Feb 13, 2010 1:55 pm
Kato/Fimo polyclay???

Last post by inonickname
Replies: 6
by jeepkahn » Thu Feb 04, 2010 5:10 pm

First post

I know Mr.Epoxy(jsr) and a few others have used polymorph and other heat to soften clays/media, but have any oif you used the bake to harden clays...

Last post

I've used fimo. I took some time and worked it until it was nice and consistent. It comes out nice and smooth, and rather hard. It needs some support...

6 Replies

4115 Views

Last post by inonickname
Fri Feb 05, 2010 10:32 am
Sabot

Last post by McCoytheGreater
Replies: 17
by insanebuddy720 » Wed Feb 03, 2010 6:30 pm
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Hello, Im new here to spudfiles and have just recently made my first spud gun shown below. It has a 2 inch barrel.

I have an idea for a sabot...

Last post

Haha... Oyeah. Nice looking cannon you got there. I'm a fan of lime green on black.
17 Replies

9692 Views

Last post by McCoytheGreater
Thu Feb 04, 2010 3:23 pm
PVC fittings in 5 inches?!

Last post by poppamies
Replies: 3
by Marffy » Sat Jan 02, 2010 8:56 pm

First post

i was looking around mcmaster and i found pvc fittings in 5 inch. but i wasnt sure if it was pressure rated. so i dont know if they do make 5 inch...

Last post

here in finland we dont even have the 4 PVC, only 90mm and 5 :D

3 Replies

2470 Views

Last post by poppamies
Thu Feb 04, 2010 9:46 am
2" Compound Round Testing Video

Last post by McCoytheGreater
Replies: 18
by PCGUY » Sun Dec 06, 2009 1:35 pm
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Mike from sent me some of his 2 UHMW compound rounds for me to test out. These are the orange/white rounds you see in some of the ads here at...

Last post

On the UltimateSpudGun website they shoot those things through almost anything and pull them out of the rubble and reuse them with very reliable...
18 Replies

26829 Views

Last post by McCoytheGreater
Sat Jan 30, 2010 2:48 pm
Valve Body Material

Last post by velocity3x
Replies: 14
by Slauma » Tue Jan 19, 2010 12:38 am

First post

I'm looking to do something like velocity3x did with his 44mm Hungus and have the valve body custom machined out of something. It seems aluminum is a...

Last post

But hey man, seriously, I just want to let you know I'm not tryin to rip-off your cannon or anything. I didn't meant to make it sound like that.

In...

14 Replies

5666 Views

Last post by velocity3x
Sat Jan 23, 2010 3:49 pm
Determine o-ring diAmeter?

Last post by kenbo0422
Replies: 4
by JDP12 » Sun Jan 17, 2010 11:32 pm

First post

Hey--

I'm working on improving my combustion gun vastly and one thing I need is a truly gastight projectile- which means o-rings similAr to...

Last post

Standard 'rule of thumb' for o-ring compression:

30% compression for moving parts, 40% compression for non-moving parts.

Stretch:

1-5%, ideally at...

4 Replies

2721 Views

Last post by kenbo0422
Sat Jan 23, 2010 12:40 pm
cam locks

Last post by inonickname
Replies: 1
by cfb_rolley » Fri Jan 22, 2010 11:22 pm

First post

has anyone had any issues importing cam locks to australia or know if they're available and where from in aus? i'd like to be able to take down my...

Last post

You shouldn't have much problem finding them in the right place. You don't even need to ship them in.

The best place to get them would be an...

1 Replies

1290 Views

Last post by inonickname
Fri Jan 22, 2010 11:31 pm
Pre-charged cartridge suggestions?

Last post by inonickname
Replies: 8
by inonickname » Thu Jan 21, 2010 2:07 am

First post

I've been building some pre charged pneumatic cartridges recently which use an unbalanced spool valve similar to the brocock air cartridge. I've had...

Last post

Oh, nice. So the spring and the firing pin are used as a check valve I see? Very ingenious.

8 Replies

3038 Views

Last post by inonickname
Fri Jan 22, 2010 12:20 am
My knockers!!!

Last post by deathbyDWV
Replies: 6
by deathbyDWV » Tue Jan 19, 2010 3:48 pm

First post

So... I saw jeepkahns knocker rounds and thought I want to make some , then I thought wait... I scrapped my 1.25 inch cannon... DARN

So I came up...

Last post

Damage pics will come within a week. I need to get the cannon done first. All i have left is the sealing face...

But I'll have damage pics......

6 Replies

2867 Views

Last post by deathbyDWV
Wed Jan 20, 2010 12:45 pm
1.25" "Knocker" Missiles...

Last post by jeepkahn
Replies: 13
by jeepkahn » Sat Jan 16, 2010 12:15 pm

First post

:D Get your mind out of the gutter JSR...

These are a precursor to some 1.25 Blowdarts I'm going to be making..

They are for a 1.25 bore...

Last post

is this gonna be used in the deciminater

Nope, decimater is 1 bore, these are for DD1(w/1.25 insertbarrel), and for the caveman rifle and 1.25...

13 Replies

4929 Views

Last post by jeepkahn
Tue Jan 19, 2010 1:48 pm
Metal pipes for 30bar+

Last post by POLAND_SPUD
Replies: 14
by FighterAce » Fri Jan 15, 2010 2:34 pm

First post

I recently decided to switch my air tank on the M4 from PVC to all metal parts... The PVC I've been using is rated to 20 bar but I'm afraid it will...

Last post

just buy galvanised version

14 Replies

3644 Views

Last post by POLAND_SPUD
Fri Jan 15, 2010 7:27 pm

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