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Announcements

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

944875 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

62496 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

825165 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

196073 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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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

221836 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

315802 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

5182803 Views

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

Topics

Laser pens

Last post by jackssmirkingrevenge
Replies: 13
by Mr.Russ » Fri Apr 06, 2007 12:40 am

First post

Is there any way of making them stay on when you turn them on? im talking about these ones:

thanks.

Last post

If you look at laser pointers used on firearms (I assume you want to apply a similar device to a spudgun of sorts) they're never permanently on but...

13 Replies

5282 Views

Last post by jackssmirkingrevenge
Wed Apr 18, 2007 7:45 am
Soldering a Tee

Last post by pyrogeek
Replies: 15
by Velocity » Sat Apr 07, 2007 1:26 pm
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OK, I am a novice when it comes to soldering copper. However, I have been improving recently, and I am about to start a project involving copper pipe...

Last post

I've brazed all kinds of stuff before. Just as long as you remove any rust and dirt, and heat steel up until it's glowing red and a little glossy,...
15 Replies

8204 Views

Last post by pyrogeek
Tue Apr 17, 2007 11:33 pm
Laminating Small diameter inside larger diamater PVC

Last post by JudgieSA
Replies: 6
by JudgieSA » Tue Apr 17, 2007 4:38 am

First post

For the reservoir chamber on the gun I intend to build IF the S.A. gun laws allow it, i was thinking of laminating some 90 PSI PVC inside some of the...

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6000 N/m/m means that if you got a 1 meter long section of pipe, and clamped one end in a vice, the other end would deflect 1 meter if you if you put...

6 Replies

2301 Views

Last post by JudgieSA
Tue Apr 17, 2007 4:31 pm
Fabricating your own stock

Last post by integral
Replies: 22
by Mr.Russ » Sun Apr 08, 2007 12:04 am
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Just gonna have a bit of a play around, what are some techniques i can use to shape my own stock?

what are some of the tools i can use aswell....

Last post

glad to see there are gits fan that spud!
22 Replies

7941 Views

Last post by integral
Tue Apr 17, 2007 1:10 am
Blowgun question

Last post by Mr.Russ
Replies: 13
by Mr.Russ » Sun Apr 15, 2007 1:11 am

First post

Hey guys, i bought this new blowgun for my inline, and i found that only one side has 10mm threads, the other side is smaller.

the side that is too...

Last post

what are the thread types?

13 Replies

3683 Views

Last post by Mr.Russ
Sun Apr 15, 2007 9:51 pm
i got some weird pipe....

Last post by WOW!!
Replies: 5
by hi » Fri Apr 13, 2007 11:57 pm

First post

i was working on my cannon today and looked at the pipe and it clearly said nsf-pw SCH40 pvc 280psi @ 73 degrees then, about a foot down the pipe it...

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O ok. Well when it says DWV on the side, that means that it is approved by code to be used a a drain,waste and vent system in homes and buildings and...

5 Replies

1704 Views

Last post by WOW!!
Sat Apr 14, 2007 2:33 am
pressure rating

Last post by chaos
Replies: 1
by experament-u2 » Thu Apr 12, 2007 11:49 pm

First post

how much pressure can a alumium(sp?) block hold
and a block of perspex glass

iv tryed searching but cant find anything plz help

Last post

give us a wall thickness of the Al mate and ill look it up 4 ya.

1 Replies

1004 Views

Last post by chaos
Fri Apr 13, 2007 1:03 am
ABS pipe

Last post by DK
Replies: 37
by sandman » Tue Mar 20, 2007 8:58 pm
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ok, first off id like to say hello
and now for the problem,
i plan starting my first cannon, i finished all the spects, and then looked for...

Last post

That would depend entirely on the outside diameter of the pipe. I would suspect that you could use the class T with the regular pipe in a reducing...
37 Replies

11120 Views

Last post by DK
Thu Apr 12, 2007 10:46 pm
Copper Ammo

Last post by PAspuder
Replies: 3
by us sniper » Sun Apr 08, 2007 11:24 pm

First post

Has anyone tried copper ammo before. I started to make copper bullets with a cap a small peice of pipe then a coupler. The 3/8 fits perfectly into a...

Last post

Copper ammo might not be a good idea since the price of copper has skyrocketed over the past couple years. But if you have the budget Id say go for...

3 Replies

1876 Views

Last post by PAspuder
Wed Apr 11, 2007 8:17 pm
Finding projectiles downrange

Last post by deusXmachina
Replies: 64
by deusXmachina » Tue Mar 20, 2007 9:33 pm
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I've been designing a very aerodynamic round that is fired out of a 3 barrel with Great Stuff sabots for the purpose of range firing, when I realized...

Last post

I actually kind of like the idea of the tailsection that shoots off a streamer on impact. The problem is I'm already at the weight limit of an ideal...
64 Replies

19980 Views

Last post by deusXmachina
Tue Apr 10, 2007 1:59 pm
Help with piston

Last post by spudthug
Replies: 33
by spudthug » Fri Apr 06, 2007 10:22 am
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ok well im making a piston for my comp gun and idk how i should do it...i have already got my piston it is teflon and i have rubber to but....idk how...

Last post

he said he used a ball valve before a piston
33 Replies

8762 Views

Last post by spudthug
Mon Apr 09, 2007 6:32 am
Paintballs

Last post by Recruit
Replies: 7
by Acdcmonkey1991 » Mon Apr 02, 2007 5:11 pm

First post

Can someone please tell me the outer diameter and the weight in grams of a paintball?

Last post

Paintballs will vary in their size depending (Note the factors mentioned are as if they have just been taken from the package they came in the first...

7 Replies

2246 Views

Last post by Recruit
Mon Apr 09, 2007 12:33 am
plastic welder

Last post by benstern
Replies: 11
by BIKER180360 » Wed Apr 04, 2007 7:57 pm

First post

has anyone tried this new plastic welder i am hearing about. please inform me about it. 8)

Last post

Ok now I know what it is. I suspected it was that but was not sure.
The adhesive looks like this:

11 Replies

3364 Views

Last post by benstern
Sun Apr 08, 2007 7:00 pm
Steel pipe ratings

Last post by Fnord
Replies: 9
by killa_454 » Tue Jan 16, 2007 8:35 pm

First post

does anyone have the pressure ratings of sch 80 steel pipe
thanks.

Last post

This is why the pipe info page needs charts for different types of metal.

I think I found this digging in the spudtech hybrid section, it lists...

9 Replies

2949 Views

Last post by Fnord
Sat Apr 07, 2007 9:42 pm
just built a spud gun today!!! its huge

Last post by Kenny_McCormic
Replies: 17
by gattlinggun » Fri Apr 06, 2007 1:15 am
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everybody says that black pvc is weaker than white whats the difference but i heard that black pvc locks in heat more like on a sunny day and im...

Last post

yeah abs is better for combustions even if it is cellcore because abs can take the pressure spike better dont believe me look at this
17 Replies

5565 Views

Last post by Kenny_McCormic
Sat Apr 07, 2007 5:02 pm
Building a Lathe For Making Piston Valves

Last post by CS
Replies: 4
by kf4oij » Fri Apr 06, 2007 10:21 pm

First post

Hey Guys,

So, I finally finished a lathe I'd been working on to make piston valves after talking to the Pimp . Here are some pics, to save...

Last post

Me 'Pimp', or another 'Pimp'? (I am going to feel dumb if I am the mentioned 'Pimp'.)

Nice woodworking, and construction. Personally I would have...

4 Replies

2303 Views

Last post by CS
Fri Apr 06, 2007 11:12 pm
"Battle Rifle"

Last post by Solo
Replies: 5
by Solo » Wed Apr 04, 2007 1:00 pm

First post

For those of you who play halo2, I've been trying to think of a simple loading mechanism that will burst-fire round ammunition (ie: bb's, marbles,...

Last post

I was looking for 3/8 or smaller. I couldn't find them on mc-master carr, and I'm pretty sure the local hardware and the not-so-local hardware don't...

5 Replies

1974 Views

Last post by Solo
Fri Apr 06, 2007 7:49 pm
spud gun vid

Last post by lukemc
Replies: 2
by gattlinggun » Fri Apr 06, 2007 1:32 am

First post

how to build a combustion spud gun go to this link awsome vid i buid one exactly like this only with a stun gun

Last post

not to be critical but most people on this forum have already built gun like that or even better so an instructional video should

1. be in the...

2 Replies

2247 Views

Last post by lukemc
Fri Apr 06, 2007 9:23 am
Piston Design

Last post by chaos
Replies: 14
by demilus » Tue Apr 03, 2007 6:55 pm

First post

Hey, it's my first piston. I have some plexiglass rod that I plan to make into my piston. I will drill the holes all around the rod so that the...

Last post

The only problem i would see with using o-rings is the will add friction and slow the piston down.

I think that is the opposite, the air venting...

14 Replies

4483 Views

Last post by chaos
Wed Apr 04, 2007 11:28 pm
Potatoe cutters

Last post by PCGUY
Replies: 9
by BIKER180360 » Wed Apr 04, 2007 7:10 pm

First post

If you want to get that extra 20 or 30 feet out of your pneumatic potatoe cannon then you need a potatoe cutter. A potatoe cutter will cut your...

Last post

Dear god BIKER180360 there is an edit button, use it.

I don't know if your just trying to gain posts or what, but either way don't ever do anything...

9 Replies

3417 Views

Last post by PCGUY
Wed Apr 04, 2007 9:45 pm
foxx tail ammo

Last post by lukemc
Replies: 7
by dragon finder » Tue Jan 24, 2006 9:46 pm

First post

to make a foxx tail put a tennis ball in a panti hose leg and push it down to the toe and tie it off and when you fire it the tail should wag...

Last post

i used to have a problem finding my golf balls when i shot them untill i added a nail coming out the back and a blaze orange tail keeps it strait in...

7 Replies

4446 Views

Last post by lukemc
Wed Apr 04, 2007 8:23 pm
More accurate batteries

Last post by BIKER180360
Replies: 29
by us sniper » Sat Mar 17, 2007 7:24 pm
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Are there any ways of getting a battery to fly straight and be accurate? I'm using AA batteries and a .5 inch barrel. Would the length of the battery...

Last post

i have never tried batteries before what happens when they land? do they crack and spew out acid or are they able to be shot again?
29 Replies

8238 Views

Last post by BIKER180360
Wed Apr 04, 2007 8:11 pm
Adapting 0.22 airgun pellets for airsoft barrels

Last post by A-98
Replies: 12
by jackssmirkingrevenge » Tue Apr 03, 2007 9:17 am

First post

It's pretty self explanatory, a couple of light hammer taps on the drill bit and you've got a good fitting heavy projectile that will still fly head...

Last post

i agree completely. if you have a good idea, share it. unless you want to make a profit off it (like joel) everyone deserves to know.

depending on...

12 Replies

6309 Views

Last post by A-98
Tue Apr 03, 2007 11:24 pm
Slugs for a 3/4" barrel

Last post by boilingleadbath
Replies: 6
by jackssmirkingrevenge » Tue Apr 03, 2007 9:25 am

First post

Take an empty 12 gram CO2 capsule and saw it in half.

Put some lead in the nose, hold it in a pair of pliers and heat it up in a burner until it...

Last post

There's always the possibility of ferrocrete as a filling, so long as you can put up with non-reusable ammo.

Or just concrete.

Anyways, it looks...

6 Replies

4169 Views

Last post by boilingleadbath
Tue Apr 03, 2007 5:06 pm
DWV bushing

Last post by frankrede
Replies: 8
by subterranean » Fri Mar 30, 2007 3:31 pm

First post

I just want to know what makes a DWV bushing able to hold less pressure. I am building an over under pneumatic, and the only part need now is a 3 to...

Last post

well dwv comes in sch-40 but that does not mean it is pressure rated.
DWV has shorter socket depth.
on mcmaster, all of their sch-40 and 80 pipe are...

8 Replies

2857 Views

Last post by frankrede
Mon Apr 02, 2007 5:49 pm

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