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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

631380 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

49538 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

730578 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

140712 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...

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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

171981 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

260137 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

5098187 Views

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

Topics

penetrating ammo/damaging ammo

Last post by Peter Cottontail
Replies: 123
by schmanman » Fri Nov 17, 2006 8:48 pm
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what is the best penetrating ammo you have made?
the best / most damaging ammo?

I would like to hear.

I talk about it a little too often, so most...

Last post

i love to use sleeper ammo, the kind that seems weak and is truely far from, such as a dixie cup full paper towels crumpled up after being fully...
123 Replies

40546 Views

Last post by Peter Cottontail
Mon Aug 06, 2007 9:20 pm
Bushing Stop Removal

Last post by Atlantis
Replies: 9
by Atlantis » Mon Aug 06, 2007 1:00 am

First post

I'm trying to make a sort of coaxial but can't find a good way to remove the pipe stop in my bushings, I need a way that doesn't involve a lathe or...

Last post

I finally got it out with a half-round file.

9 Replies

4161 Views

Last post by Atlantis
Mon Aug 06, 2007 3:42 pm
Mortar round-auto fin deploy

Last post by mopherman
Replies: 7
by Spuddin » Thu Aug 02, 2007 7:56 pm

First post

auto deploying fins on a 50mm mortar round. a rubber band activates the fins after the round exits the barrel.

_______________________...

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i think you might benefit from some fatter fins. And it would deploy faster if the rubber band was fastened to the end of the fin. good job though

7 Replies

2996 Views

Last post by mopherman
Fri Aug 03, 2007 11:03 pm
PVC Burst Pressures

Last post by MisterSteve124
Replies: 22
by noname » Fri Aug 03, 2007 12:33 pm
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This topic has beeen debated for quite some time, so I'll try to help settle it.
According to most people, the burst pressure is around 3 times the...

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By reading what you said you plan to do you won't be putting water pressure in the pipe it will still be air. If you fill it with water and pump it...
22 Replies

8078 Views

Last post by MisterSteve124
Fri Aug 03, 2007 9:49 pm
steel pipes

Last post by noname
Replies: 13
by roughboy » Wed Aug 01, 2007 6:37 pm

First post

Could you please tell me which type of metal pipe is stronger, stainless or galvanized steel? Which is safer for high-pressure applications?

*Edited...

Last post

Just test the aluminum. I found some aluminum pipe (bike pump tube thing) and one end screws into 1 NPT. I plan on using a compression fitting or...

13 Replies

2937 Views

Last post by noname
Fri Aug 03, 2007 11:05 am
Molding Ammo Question

Last post by spud yeti
Replies: 5
by e1337 » Thu Aug 02, 2007 6:41 pm

First post

Is it possible to make a bondo mold of a projectile and then pour liquid lead into it? Has anyone eery done it?

Regaurds,
e1337

:wav: :wav:

Last post

Yeah, just put a sinker in the middle of some resin/bondo.

5 Replies

1660 Views

Last post by spud yeti
Fri Aug 03, 2007 7:24 am
Ammo just disintegrating...

Last post by chaos
Replies: 27
by dongfang » Thu Jul 26, 2007 3:48 pm
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Hi,

I had my first real trial shooting of the Schweizer-Valve this evening.

I wanted to get golf balls, but all I could find was ridiculously...

Last post

need a safe place to shoot 'em.

bedroom :D
27 Replies

7187 Views

Last post by chaos
Thu Aug 02, 2007 2:55 am
Pen cartridge ammo

Last post by spud yeti
Replies: 9
by spud yeti » Thu Jul 26, 2007 8:59 am

First post

Today, during a very boring double period(1h20) of Physical Sciences, I decided to open my pen. What I found was beautiful. It was a metal ink...

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OK, so I have found some 8mm OD, 6mm ID steel tubing, so I guess the project begins... :wink:
How long do you think a decent barrel length is for a...

9 Replies

2684 Views

Last post by spud yeti
Wed Aug 01, 2007 12:27 pm
Screaming/Whistling ammo

Last post by Scotty
Replies: 7
by drac » Sat Jul 28, 2007 11:57 am

First post

Wow, I realized that I haven't posted on here in forever. Talk about a complete lack of time with work and such.

I'm probably going to be buying...

Last post

Tape a coaches whistle to it- or several.

Peace
Scotty

7 Replies

2937 Views

Last post by Scotty
Sat Jul 28, 2007 11:59 pm
Sch 160

Last post by DYI
Replies: 16
by frankrede » Fri Jul 27, 2007 3:40 pm
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I Found a local pipe supplier in my area and they have sch 160 steel available in most sizes.
I was wondering what I could do with it.
I was...

Last post

I don't intend to constantly create DDT, as it probably wouldn't help performance much, I only want a chamber that can survive it if it does happen....
16 Replies

4411 Views

Last post by DYI
Sat Jul 28, 2007 7:21 pm
Estimating drag coefficient

Last post by cdheller
Replies: 10
by SpudBlaster15 » Fri Jul 27, 2007 2:41 pm

First post

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse...

Last post

search for
ballistic coefficient
?might be a better term for what your after?

there are a few free programs around, some let you input shape and...

10 Replies

2870 Views

Last post by cdheller
Sat Jul 28, 2007 5:20 pm
taping metal cap for spark plug

Last post by mark.f
Replies: 5
by singularity » Fri Jul 27, 2007 6:32 pm

First post

i have a threaded iron cap that i need to tap for a spark plug... but i have no idea how to do it. normally i would just drill a hole and screw the...

Last post

If you use a large pipe size like 1/4 , then tapping metal is hard. I'd go for as small a size as possible. You can tap the threads easier and...

5 Replies

1996 Views

Last post by mark.f
Sat Jul 28, 2007 6:16 am
Long barrel sleeving techniques?? (10ft)

Last post by pyrogeek
Replies: 13
by altxf4 » Wed Jul 25, 2007 11:18 pm

First post

First of all...cannon specs:
over under
42x4 Class 315psi chamber
52 sleeved 2 sch80/1.5 sdr-21 barrel
2 Ranbird PEB irrigation valve modded for air...

Last post

What if you cut a single slit in the schedule 80, and put a small shim in it to open it up a little so that the ID is a little larger? Then you could...

13 Replies

3857 Views

Last post by pyrogeek
Thu Jul 26, 2007 8:10 pm
Solvent weld cure times

Last post by dongfang
Replies: 12
by Pilgrimman » Tue Jul 24, 2007 1:02 pm

First post

I've been researching the recommended cure times for my solvent welds, as I can't wait to shoot my new gun, but I want to be safe. I found this....

Last post

Hi,

One brand of PVC cement (Tangit, it's German I think) has this rule of thumb on the label: 24 hours for new piping systems; for repairs: one...

12 Replies

3688 Views

Last post by dongfang
Thu Jul 26, 2007 4:37 pm
spray paint

Last post by rna_duelers
Replies: 7
by koolaidman » Fri Jul 20, 2007 4:58 pm

First post

hey i made my first pneumatic rifle it shoots paintballs and also stuff like grapes, olives and carrots sometimes. Anyways, i tried modding a...

Last post

Lube the barrel :wink: Bit of dish washing liquid did the job for me.

7 Replies

2221 Views

Last post by rna_duelers
Tue Jul 24, 2007 2:53 am
anyone have any ideas for a breakaway sabot?

Last post by The Doktor
Replies: 12
by Big-mac » Thu Jul 19, 2007 7:09 pm

First post

i want to make a sabot that breaks away in the air to realease a dart. paint designs would be appreciated.

Last post

Thats a pretty good idea, I'll haveta give that one a shot. I think I might try that tomorrow. When I get something, I'll post some results.

12 Replies

5237 Views

Last post by The Doktor
Mon Jul 23, 2007 6:31 am
Expansion chamber?!?! what is that anyway?

Last post by pyrogeek
Replies: 4
by Spedy » Sat Jul 21, 2007 12:46 pm

First post

I was wondering what an expansion chamber was, I've read about guns that use them a bunch, and I'm still clueless as to what they are exactly. Could...

Last post

An expansion chamber could be used on a combustion. But, for propane or butane fuel. The chamber allows the gas to expand and warm up so it gets to...

4 Replies

1822 Views

Last post by pyrogeek
Sun Jul 22, 2007 8:01 pm
Help!

Last post by spud yeti
Replies: 2
by mactw1 » Thu Jul 19, 2007 6:25 pm

First post

Hi, Just wondering if anyone on here from the uk, made a pneumatic cannon from parts bought from B&Q? and if so, can you please upload some pix some...

Last post

This is in the wrong section (should be non-spudgun related or pneumatic discussion section) but dont worry about it :wink: , but I know hotwired and...

2 Replies

1266 Views

Last post by spud yeti
Sun Jul 22, 2007 6:41 am
Question about psi ratings.

Last post by sandman
Replies: 2
by us sniper » Sat Jul 21, 2007 1:36 am

First post

I was looking for the pressure rating of schedule 80 ratings and the numbers on spud files were in the thousands and I was wondering what the actual...

Last post

and normal PVC glue will work, as it is still PVC :roll:

2 Replies

1251 Views

Last post by sandman
Sat Jul 21, 2007 4:34 pm
Sealing Material

Last post by Atlantis
Replies: 9
by Atlantis » Fri Jul 20, 2007 1:26 am

First post

I know this has been asked before but whats a material that can be found easily that will make a good face seal on a pneumatic, I have all the parts...

Last post

I haven't really pressurised it yet, I'm not gluing it until I'm sure it seals.

9 Replies

2471 Views

Last post by Atlantis
Fri Jul 20, 2007 12:33 pm
Possibly my greatest freebee ever

Last post by spudbud101
Replies: 20
by frankrede » Tue Jul 17, 2007 10:58 am
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I found 10 ft of either 6 or 8 SOLIDWALL ABS pipe on the side of the road, I haven't picked it up yet, but I am hoping to get a truck there today

Last post

Holy shit to _Fnord. Holy shit.
20 Replies

6857 Views

Last post by spudbud101
Fri Jul 20, 2007 5:03 am
spear ammo for 1/2'' sch40

Last post by Big-mac
Replies: 9
by homedepotpro » Thu Jul 19, 2007 3:17 pm

First post

i used a small dowel and put it through a cap to one of those fatter cayola markers. then i fitted a short piece of aluminum pipe over the tip,...

Last post

sharpe and fire-harden the end of the dowel probably stronger and then go fishing...

9 Replies

3799 Views

Last post by Big-mac
Thu Jul 19, 2007 6:57 pm
Smoke Bombs

Last post by paaiyan
Replies: 2
by Pilgrimman » Wed Jul 18, 2007 10:35 pm

First post

I just got back from vacation at the beach. I brought my pneumatic rifle. My dad brought some smoke bombs, and we shot them out of my gun. In short,...

Last post

Yea, agreed with spudthug. If you want to discuss soudguns, it's cool, if you want to discuss smokebombs, it's cool, we've established that it's not...

2 Replies

1363 Views

Last post by paaiyan
Wed Jul 18, 2007 10:45 pm
1 inch brass pipe pressure?

Last post by Fnord
Replies: 7
by mopherman » Wed Jul 18, 2007 12:17 pm

First post

How much do you think some 1 inch threaded brass pipe could hndle? Im planning a small coaxial.

Last post

I have a 1 sch40 threaded brass nipple on my hybrid (you can see it behind one of the ball valves). I really need to replace it with steel, but it...

7 Replies

1857 Views

Last post by Fnord
Wed Jul 18, 2007 5:20 pm
Coaxial Combustion Barrel Support

Last post by iturnrocks
Replies: 5
by iturnrocks » Tue Jul 17, 2007 10:09 am

First post

I recently built my first gun- an over/under metered propane combustion.

After seeing photos of the Locutus without the barrel I have been thinking...

Last post

Im still working on #1

Heres the general idea for #1 if I can find a small enough fan. I may use 2 or 3.

5 Replies

2465 Views

Last post by iturnrocks
Wed Jul 18, 2007 2:14 pm

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