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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

945220 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

62533 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

825471 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

196242 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

221910 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

315943 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

5183001 Views

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

Topics

projectiles

Last post by jeepkahn
Replies: 6
by tape fist » Mon Jan 19, 2009 8:11 am

First post

who's made plaster bullets?

Last post

I make them out of bondo... If you go to a body shop supply house you can get a gallon for like $12 usd....

6 Replies

2908 Views

Last post by jeepkahn
Tue Feb 24, 2009 2:44 pm
High Pressure Pilot component(?)...

Last post by THUNDERLORD
Replies: 6
by THUNDERLORD » Tue Feb 17, 2009 7:47 pm

First post

Hello fellas,:)
I Had an idea today that I haven't seen done for a high (or low) pressure pilot that would possibly work faster than a QEV...

I was...

Last post

Well atleast I got quality over quantity o the replies!!!

(two of my most respected spudders)...

Yeah, back out and online with the flu, seems my...

6 Replies

2075 Views

Last post by THUNDERLORD
Mon Feb 23, 2009 3:29 pm
Awesome ammo for your mini or shotgun

Last post by woden the awsome
Replies: 15
by Combustion Monkey » Fri Feb 06, 2009 12:36 pm
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Just looking through a catalog I got in the mail and found these little gems. Thought I would share them with all you good folks. Flechettes

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I've bought flechette before and IT'S FREAKING INSANE! With a good canon it can go through a 10 thick tree! Generally pretty easy to make with...
15 Replies

5555 Views

Last post by woden the awsome
Wed Feb 18, 2009 7:53 pm
Deodorant can tank

Last post by psycix
Replies: 18
by iemand » Tue Feb 10, 2009 11:57 am
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I was wondering whether a deodorant can can be useful as some kind of ghetto airtank to replace the plastic bottles, all you need to do is epoxy a...

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I bet it is some sort of poppet valve. Could be used to construct a miniature hammer valve, to pilot miniature piston valves. Madurodam style xD
18 Replies

4796 Views

Last post by psycix
Sat Feb 14, 2009 12:56 pm
stirrup pump

Last post by maggotman
Replies: 35
by roughboy » Sat Feb 07, 2009 10:47 am
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What is the best check valve to use on a homemade stirrup pump? I've read that there are a few out there. there are ball check valves, diaphragm...

Last post

most (i would say all but to be safe) fridge compressors the case it under in put pressure not output pressure the output is conected from the pump...
35 Replies

11580 Views

Last post by maggotman
Fri Feb 13, 2009 7:24 pm
spool valve connections?

Last post by ramses
Replies: 13
by ramses » Fri Feb 13, 2009 11:36 am

First post

I plan on making a spool valve, and I was wondering what you thought the best way to make the connections to the side of the pipe would be. It can't...

Last post

lol no, I haven't even begun to make the valve. I was wondering if I could smooth the leakage in study hall.

13 Replies

5993 Views

Last post by ramses
Fri Feb 13, 2009 6:36 pm
snow balls

Last post by MakerOfToys
Replies: 29
by dudeman508 » Wed Jan 07, 2009 10:49 pm
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ok a friend wanted me to build and desing a snow ball gun and i dont live were it snows so trile and error is out of the question. has anyone ever...

Last post

PVC is brittle at all temperatures. . . it's a question of how hard you have to hit it before it shatters.

Proof? I've shattered multiple pieces of...
29 Replies

10116 Views

Last post by MakerOfToys
Thu Feb 12, 2009 1:17 am
Best Plastic to use for piston?

Last post by SubsonicSpud
Replies: 6
by SubsonicSpud » Mon Feb 09, 2009 6:06 pm

First post

G'day guys.

I am about to machine a 20mm barrel seal piston for a mini cannon, and I am just looking for suggestions for the best plastic to use...

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Well i have ended up buying Acetal for the piston, the guy from the place I bought it from suggested it over Nylon due to its machinability. I made...

6 Replies

2209 Views

Last post by SubsonicSpud
Tue Feb 10, 2009 2:58 pm
Bent Metal Pipe

Last post by jimmy101
Replies: 8
by SpudsMcGee » Mon Feb 09, 2009 8:54 pm

First post

Does anyone know a way to straighten a bent metal pipe, without machinery?

Last post

Straightening a bent pipe is probably futile ...

But, you might try capping one end, fill with sand then tamp the sand down hard, probably need...

8 Replies

6056 Views

Last post by jimmy101
Tue Feb 10, 2009 1:24 pm
Thread questions

Last post by btrettel
Replies: 3
by btrettel » Mon Jan 05, 2009 6:49 pm

First post

I recently decided to buy a small low pressure aluminum cylinder . The threads on the cylinder are a little odd--they are straight, 1 inch diameter,...

Last post

An update: I spoke to a more knowledgeable person at Catalina Cylinders and I could probably get the thread to work with 3/4 inch NPT threads, but...

3 Replies

1396 Views

Last post by btrettel
Tue Feb 10, 2009 7:45 am
Where would I get a bike tire filler?

Last post by inonickname
Replies: 9
by Pieguy14 » Wed Feb 04, 2009 5:47 pm

First post

Hey Spudfiles, where would I get a bike tire filler? Like you attach a bike pump to the filler and pump the air chamber up, and it maintains the air...

Last post

You're speaking about a schrader valve. Try to make your posts make sense. I was having difficulty seeing if you wanted a CO2 tire inflater, a valve,...

9 Replies

3477 Views

Last post by inonickname
Fri Feb 06, 2009 3:12 am
Paint sprayer vs pressure washer

Last post by Lentamentalisk
Replies: 5
by daccel » Thu Feb 05, 2009 1:04 am

First post

I rediscovered this paint sprayer gun today. Long story short, it's now an extra after it stopped working last summer - and ready for spud gun use...

Last post

well that number was assuming that the same fuel/air mix (or at least the same pressure) would be behind the piston, as on the chamber side of the...

5 Replies

3406 Views

Last post by Lentamentalisk
Thu Feb 05, 2009 2:55 am
Bike Tire Filler...

Last post by john bunsenburner
Replies: 2
by THUNDERLORD » Wed Feb 04, 2009 2:21 pm

First post

I've got limited internet right now, but wanted to discuss my CO2 Bike tire filler some.

It's an Ultra-flate plus for 16 gram cart.s.
But I've used...

Last post

Exactly carlman its a common misconception that an oxidiser burns after all it makes up most of an explosive. But really it is supplying oxgen to the...

2 Replies

1286 Views

Last post by john bunsenburner
Wed Feb 04, 2009 5:54 pm
CO2 usage rate

Last post by PainKillaX
Replies: 3
by PainKillaX » Wed Feb 04, 2009 3:48 am

First post

I've been thinking of using a normal CO2 tank, like you would see for paintball (I believe 20 oz), for an inline vortex BBMG. At 80 PSI does anyone...

Last post

Thanks that's about what i was hoping. If I haven't put those thousands of rounds to good use I shouldn't be using the dang thing anyway.

3 Replies

1942 Views

Last post by PainKillaX
Wed Feb 04, 2009 3:24 pm
.22 pellet barrel size?

Last post by john bunsenburner
Replies: 14
by MB1380 » Sun Jan 25, 2009 2:43 pm

First post

Hey guys, i was just wondering if .22 pellets (5.5mm) will work in a 6mm ID barrel or is that too much clearence?
Has anyone done this before?

Last post

best woulb be to find a 4.5mm barrel for .177s or use a 5mm barrel for .20s, both work and latter has a very tight fit(5.08OD), for .22s use the...

14 Replies

2999 Views

Last post by john bunsenburner
Mon Feb 02, 2009 12:13 pm
18mm copper tube uk suplyers

Last post by MaxuS the 2nd
Replies: 14
by maggotman » Wed Jan 28, 2009 5:07 pm

First post

18mm copper tube uk suplyers

i require some 18mm pipe but i can not find a uk supplier that stocks it and before any one says i spent 2 hours...

Last post

18mm copper exists?

News to me.

14 Replies

7075 Views

Last post by MaxuS the 2nd
Fri Jan 30, 2009 3:14 pm
$1 store ammo

Last post by tape fist

by tape fist » Thu Jan 29, 2009 7:26 pm

I was at the dollar store one day and saw these door stops

so i figured i would see how they worked as ammo and bought them.these things are great...

0 Replies

2159 Views

Last post by tape fist
Thu Jan 29, 2009 7:26 pm
PVC and cold temps

Last post by Ragnarok
Replies: 5
by Daltonultra » Wed Jan 28, 2009 12:59 am

First post

OK, I accept the fact that cold temperatures do affect the shock-resistance of PVC, but does anyone have any data on temperature and burst pressures?...

Last post

No, he meant the pressure rating will decrease ( I think he did...)
You're mixing up rating and safe working pressure - Rating is what the pipe has...

5 Replies

2382 Views

Last post by Ragnarok
Wed Jan 28, 2009 2:39 am
Nifty Burst Disk Coupler

Last post by starman
Replies: 15
by starman » Fri Jan 09, 2009 12:57 am
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Burst Disk Cartridge/Coupler for Golf Ball Cannons

This idea hit me while driving back to work after lunch at Taco Bell a few weeks ago.... :wink:...

Last post

Good to know. Thanks for the info. I am thinking that is the next upgrade I'm going to do to my cannon, the trick is to find a 1 cam lock coupler....
15 Replies

6204 Views

Last post by starman
Wed Jan 28, 2009 1:44 am
Rod seal

Last post by ramses
Replies: 5
by ramses » Sun Jan 25, 2009 4:36 pm

First post

would an ordinary O-ring be capable of sealing pressure on a sliding rod (red) Yes, A double acting piston could be used instead, but they are not...

Last post

I would be making a completely self contained semi-auto airsoft combustion. Air is supposed to push the piston, and be displaced by the piston(2...

5 Replies

1624 Views

Last post by ramses
Sun Jan 25, 2009 8:16 pm
How to build a straight golf ball barrel from bent SCH 80

Last post by Combustion Monkey
Replies: 11
by Combustion Monkey » Wed Jan 21, 2009 9:42 pm

First post

This fix will also be handy if you have a foot of SCH 80 lying around and want to make a long barrel.

First get yourself some bent SCH80

Then...

Last post

Its funny I had thought of that, but there just isn't the space. I would guess maybe a the air space is about the same as the thickness of the...

11 Replies

3509 Views

Last post by Combustion Monkey
Fri Jan 23, 2009 6:24 pm
Sch80 problems

Last post by Combustion Monkey
Replies: 27
by Combustion Monkey » Mon Jan 19, 2009 5:59 pm
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The supplies for a golf ball barrel I ordered came in today from the local plumbing supplier. Problem is that the Sch80 pipe is about as straight as...

Last post

I have fixed it! the fix is posted here
27 Replies

5557 Views

Last post by Combustion Monkey
Wed Jan 21, 2009 9:56 pm
Custom size paintballs

Last post by JDP12
Replies: 18
by Eddbot » Tue Jan 20, 2009 10:52 pm
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Hey everybody, i'm in the process of building a gun, and i'm starting to consider the possibility of making it a paintball gun for use on large...

Last post

ahh... that topic again.

and judgment arm's topic was worth a read as well..

I gave up on it, and just decided to stay with my current setup.

It...
18 Replies

5627 Views

Last post by JDP12
Wed Jan 21, 2009 11:33 am
Pen gun ammo

Last post by Mr.Sandman
Replies: 6
by Mr.Sandman » Sat Jan 17, 2009 9:03 pm

First post

after recently constructing my pen gun i realized there is only one flaw............. the only ammo that is reliable enough is pencil tips! so if any...

Last post

Thanks this really helped! btw i have a 3mm brass barrel in my pen gun

6 Replies

3281 Views

Last post by Mr.Sandman
Sun Jan 18, 2009 9:52 am
soldering with propane?

Last post by microman171
Replies: 35
by Cosmic Muffin » Fri Jan 09, 2009 2:11 am
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gday blokes
i was just wondering if you can solder copper with a bernzomatic propane torch, because im sure you can but when i tried it i cant get it...

Last post

Are you serious? $120/m!

At Bunnings in NZ you pay $10/m.

What company was it? They must have been trying to rip you off real good.
35 Replies

7878 Views

Last post by microman171
Sat Jan 17, 2009 1:41 am

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