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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

1125889 Views

Last post by quinn whitsitt
Fri Feb 09, 2024 2:38 pm
Sketchup Model Library

Last post by mrfoo
Replies: 152
by dewey-1 » Tue Mar 24, 2009 12:12 pm
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Over the last year I have made a lot of CAD drawings for
Pneumatic Launchers.

I have imported several of them into Sketchup format.
Here is the link...

Last post

Bollocks. Dewey put them out in the hope that, and I quote

some of you can make use of these!

There's absolutely nothing wrong with using them,...
152 Replies

578854 Views

Last post by mrfoo
Mon May 20, 2024 11:17 am
Solvent Welding Course Recommended For ALL

Last post by Technician1002
Replies: 46
by sgort87 » Fri Aug 04, 2006 8:18 pm
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Originally posted by DR on the Spudtech forums:

IPEX Solvent Cements ONLINE Course can be found here:

It is recommended that you download and...

Last post

Your earlier post about just scoring the surface, has me wondering if that is why OATEY makes a brush tool that scores the inside of a fitting, and...
46 Replies

311516 Views

Last post by Technician1002
Thu Dec 02, 2010 5:04 pm

Topics

Silencers, Who has them?

Last post by VH_man
Replies: 100
by sputnick » Sun Dec 14, 2008 9:39 pm
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Over the past several weeks, i have built several silencers before coming to the one i have now, made of 1 1/2 abs with wooden plugs at both ends and...

Last post

I just tried....

I cant get the threads on the silencer to line up straight with the barrel. No matter WHAT i do......

Im going to go out and buy...
100 Replies

30204 Views

Last post by VH_man
Wed Dec 17, 2008 11:41 am
Quick question

Last post by jitup
Replies: 7
by Moonbogg » Tue Dec 16, 2008 4:25 am

First post

Wouldn't it be better to sharpen the inside of a barrel end to create a more tight fitting spud? Or would it end up being too tight and you'd have to...

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I use a pedestal grinder to put a 45 degree bevel on the outside of my smaller bore barrels (1.5 inch and smaller) and than use a dremel or file to...

7 Replies

2524 Views

Last post by jitup
Wed Dec 17, 2008 10:39 am
Flipping the script: take a cue from Spigot/Rifle grenade?

Last post by jackssmirkingrevenge
Replies: 15
by TapTheForwardAssist » Tue Dec 16, 2008 5:52 pm
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Greetings, I'm not experienced in the spud-cannon scene, but used to be a professional artilleryman (11th Marine Regiment), and always though the...

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While during wartime it was a good idea as it saved making expensive rifled barrels, in terms of performance it's not that good a concept....
15 Replies

7238 Views

Last post by jackssmirkingrevenge
Wed Dec 17, 2008 1:01 am
golfball dimples explained

Last post by raptorforce
Replies: 6
by jmeyer1022 » Wed Dec 10, 2008 12:42 am

First post

voice is annoying, but good insight on why its most effective projectile

Last post

Dimples induce turbulence. NORMALLY, turbulence is a bad thing. HOwever, in a narrow band of Reynold's numbers, turbulence does decrease drag.... As...

6 Replies

22449 Views

Last post by raptorforce
Tue Dec 16, 2008 1:10 am
Interrupted Screw breech loading

Last post by daccel
Replies: 9
by Bando_Red » Fri Nov 14, 2008 12:58 pm

First post

has anyone tried an interrupted screw loading system?
It seems like it could be fairly easy to make one from threaded pipes with a couple of...

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The same principle would make a good bolt action receiver for a combustion/hybrid cartridge.

It would be challenging but much easier than trying to...

9 Replies

5609 Views

Last post by daccel
Mon Dec 15, 2008 9:56 pm
Peizo sparker handle

Last post by mark.f
Replies: 9
by jmeyer1022 » Sun Dec 14, 2008 6:25 pm

First post

Can anyone link me the tutorial for this? I know there is one search is bringing up tons of unrelated topics. If you can find it thanks if not thanks...

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Well, 3 SCH-40 fittings usually fit inside of 4 pipe... USUALLY...

It's pretty risky. Sometimes it works for me, and sometimes you have to sand the...

9 Replies

3225 Views

Last post by mark.f
Mon Dec 15, 2008 6:49 pm
Bolt Action Breech Loader

Last post by raptorforce
Replies: 15
by PCGUY » Sat Feb 26, 2005 11:53 pm
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BREECH LOADER

Provided By -

This barrel modification is used primarily in conjunction with the PSR-0. This device allows for easy breech loading...

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i dont use washers to seal my gun but it still works perfectly i just make sure they are together and its all good
15 Replies

28576 Views

Last post by raptorforce
Mon Dec 15, 2008 5:04 pm
A inexpencive and simple to make chamber for pneumatics

Last post by Ragnarok
Replies: 28
by sam_516 » Wed Jul 19, 2006 2:22 am
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ok this is an inexpencive chamber for pneumatics, get a soda bottle and file the thread off it, then get teflon tape and put a thick layer over where...

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Who was that, You? :lol:
No actually. I do quote it back occasionally, but originally, I borrowed it.
28 Replies

15199 Views

Last post by Ragnarok
Mon Dec 15, 2008 3:48 pm
ABS cellcore failure testing

Last post by Hotwired
Replies: 17
by Moonbogg » Fri Dec 05, 2008 3:09 am
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I was just wondering what would happen if I essentially made a pipe bomb out of ABS cellcore, but instead of gunpowder i'd use propane. This would be...

Last post

Spectacular isn't required.

Besides. In a combustion the force doesn't last very long but if the chamber is pumped full of air at lets say 200psi...
17 Replies

8171 Views

Last post by Hotwired
Sun Dec 14, 2008 10:48 am
Bull-pup Combustion

Last post by SP00K
Replies: 4
by Young » Sat Dec 13, 2008 8:10 am

First post

I know it is not that exiting or inovative but I did a quick search and could not find a bull pup combustion cannon, What I was thinking was that the...

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Make it anyway. If you have the end of the barrel inside the gun just a little less, it won't really matter.

And if you really want a fan in there...

4 Replies

1962 Views

Last post by SP00K
Sat Dec 13, 2008 6:25 pm
Pressure rated DWV?

Last post by LCTChamp
Replies: 17
by jitup » Thu Dec 11, 2008 8:10 pm
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Ok, today I went to Home Depot to get some parts for my 3 in piston cannon. Since I only needed a 2 ft section of 3 pipe I looked in the bin to see...

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Almost any material is ok to use for a combustion as it never really reaches extreme rates of pressure.

I prefer to avoid materials like cheese and...
17 Replies

6189 Views

Last post by LCTChamp
Sat Dec 13, 2008 4:28 pm
Drag coefficients as a function of velocity

Last post by btrettel
Replies: 7
by btrettel » Mon Dec 08, 2008 3:47 pm

First post

To help me design a more efficient pneumatic gun I have been doing a little bit of ballistic modeling. The goal is to get a certain range with as...

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My university's library finally dug up from storage an old book called Aerodynamics of Bodies of Revolution , which again was meant for transonic or...

7 Replies

3906 Views

Last post by btrettel
Sat Dec 13, 2008 11:57 am
Spark Strip Help!!!

Last post by Xxplosive42o
Replies: 19
by Xxplosive42o » Tue Dec 09, 2008 9:10 pm
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I need some pictures of user's spark strips for their combustion cannons. I am building a rather long chamber that is why I ask. If you could list...

Last post

Sounds good, thanks for all your imput so far :-)
19 Replies

5605 Views

Last post by Xxplosive42o
Fri Dec 12, 2008 3:47 am
Who wants cannons in CAD?

Last post by Moonbogg
Replies: 42
by F.E.A.R._Sniper » Wed Nov 19, 2008 9:30 pm
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well then do i have a suprise for you!!!!!

I have recently aquired a CAD program that i know how to use pretty well. I usually do paintball designs...

Last post

I'm a mechanical designer with the latest Solidworks, and started designing my cannon using it, and said screw it. All I need is Spudtool! For...
42 Replies

13469 Views

Last post by Moonbogg
Fri Dec 12, 2008 2:54 am
Hydrostatic testing

Last post by daccel
Replies: 23
by daccel » Tue Dec 09, 2008 10:23 am
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I'm considering doing some hydrostatic testing on copper pipe with epoxy plugs, using an airless paint sprayer (variable pressure to ~3000 psi).

Do...

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Yes, a gauge would be useful but I think it's safe to say it reached at least 3000 psi, because the regulator is factory set to 3300 and the pump was...
23 Replies

6156 Views

Last post by daccel
Thu Dec 11, 2008 8:42 pm
Help with banjo camlock fittings

Last post by metallover
Replies: 12
by metallover » Wed Dec 10, 2008 5:25 pm

First post

I just picked up a 2 camlock and I am having trouble trying to get the male end to mount to my barrell correctly. The inside diameter of the camlock...

Last post

I got the sanding done tonight. It wasn't really that bad once I got the hang of it. I could probably do it in about 30-45 minutes if I did it again....

12 Replies

5180 Views

Last post by metallover
Thu Dec 11, 2008 8:19 pm
Painting PVC using Krylon Fusion

Last post by Xxplosive42o
Replies: 7
by Xxplosive42o » Thu Dec 11, 2008 3:46 am

First post

I am going to paint my cannon within the next week or so. After looking closely at the piping I have noticed that there are areas that have excess...

Last post

Thank you thank! I suppose I'll sand it down and wash it...then spray it with some nice ultra flat olive drab 8)

7 Replies

6602 Views

Last post by Xxplosive42o
Thu Dec 11, 2008 8:04 pm
YACC (Yet Another Combustion Cartridge)

Last post by mega_swordman
Replies: 19
by mega_swordman » Sun Dec 07, 2008 1:01 am
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I have been mulling around with an idea for a combustion cartridge. My inspiration came from JSR's design, but I didn't quite like his ring idea....

Last post

A lot of quick replies. Alright

2)Using cartridges for the propellant, then having a separate loading system for the ammo - this enables the...
19 Replies

6347 Views

Last post by mega_swordman
Wed Dec 10, 2008 8:34 pm
**Hunting Spec'd Spudgun**

Last post by jrrdw
Replies: 7
by stinkypula » Mon Dec 08, 2008 7:01 am

First post

I need help/Ideas on modding my spud gun and turning it into a sniper/shotgun. the only mods I've done is a dodgy homemade sight, which in fact is...

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Hunters spudgun refers to hunting refers to shooting living things, witch is not allowed in the Spudfiles forums. Go and read the rules and do the...

7 Replies

2013 Views

Last post by jrrdw
Mon Dec 08, 2008 9:24 am
3" Piston

Last post by tomthebomb137
Replies: 36
by PCGUY » Sun Feb 27, 2005 12:04 am
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3 INCH PISTON

Provided By FoxxLord -

Here it is, my version of a 3 piston. It goes in Heavy Barrel, my latest coax golf ball cannon.

It turned...

Last post

actually thanks so much, the 3in coupler fitting inside 4in pipe is handy info, i think il do that and then throw a 2 in brl on it. i find that...
36 Replies

24924 Views

Last post by tomthebomb137
Sun Dec 07, 2008 2:20 pm
how to unglue PVC?

Last post by jitup
Replies: 16
by jitup » Thu Dec 04, 2008 11:38 am
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dose any body know a way to unglue pvc without cracking the pipe or ruining it. I want to unglue a ball valve I from my first air gun and replace it...

Last post

oops, I forgot I have not listed it yet :oops: it is late here!
16 Replies

3260 Views

Last post by jitup
Fri Dec 05, 2008 12:03 am
So I was out urbexxing...

Last post by starman
Replies: 14
by A a r o n » Thu Dec 04, 2008 7:08 pm

First post

In a derelict insane asylum when I came across these...

(damn lense didn't open all the way cause it was cold)

If I take them and use...

Last post

Stop printing dates. You're making me feel old. :lol:

Yeah yeah I know. There's only a half dozen of us or so active here in the forums that were...

14 Replies

4521 Views

Last post by starman
Thu Dec 04, 2008 10:32 pm
qev vs piston

Last post by twizi
Replies: 35
by twizi » Tue Dec 02, 2008 7:35 am
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im building a high powered airsoft sniper rifle should it be qev or piston what has faster opening time which is better please comment u can sugest...

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i ve built 2 high powerd pistiol but they were all with 1/4 ball valve they had 500 fps at 300 psi my sniper is just usen a qev and gona be semi...
35 Replies

8269 Views

Last post by twizi
Thu Dec 04, 2008 7:29 am
What's the best material?

Last post by starman
Replies: 12
by SP00K » Wed Dec 03, 2008 4:30 pm

First post

I am making a CO2 powered paintball/airsoft grenade launcher. It's going to be about the size of an M203 or something that would look mountable under...

Last post

But, I only recently discovered this site and dont fully understand burst disks that much. I understand the concept of breaking and releasing the air...

12 Replies

4111 Views

Last post by starman
Thu Dec 04, 2008 2:39 am
My idea for pneumatic land mine

Last post by SP00K
Replies: 2
by SP00K » Wed Dec 03, 2008 9:07 pm

First post

Here is my idea for a new landmine useable in paintball, airsoft, or just for the heck of scaring people the walk in your yard. :idea:

First you...

Last post

^and the point of this question wuzz............?

2 Replies

2128 Views

Last post by SP00K
Wed Dec 03, 2008 9:14 pm

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