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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

650129 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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First post

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

384265 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

200196 Views

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

Topics

Topeak JoeBlow Ace 3 Stage 260 psi Floor Pump

Last post by Gun Freak
Replies: 18
by Gun Freak » Fri Oct 08, 2010 4:46 pm
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I got this yesterday in the mail. It is really cool :D Three stage design gets high volume (I mean HIGH) AND high pressure (260 psi HIGH!). It is so...

Last post

If you read my first post again, I said it could easily get over 300. I could get 400 psi into a pengun with it, but as I said, I don't want to push...
18 Replies

7443 Views

Last post by Gun Freak
Sat Oct 30, 2010 1:45 pm
Help in obtaining a QEV

Last post by inonickname
Replies: 6
by Zeus » Fri Oct 29, 2010 4:59 am

First post

I'm designing a .22 plinker and I would like a 1/8 or 1/4 QEV.

I don't have a credit/debit card, nor do I have access to one. (I know, I'm a social...

Last post

lab glassware

meth lab or solid propellant :wink:

The second :wink: I can't stand drugs as they are. They should either be legal and sold by the...

6 Replies

1656 Views

Last post by inonickname
Fri Oct 29, 2010 6:47 am
Sleeve Breech

Last post by jackssmirkingrevenge
Replies: 7
by PVC Arsenal 17 » Thu Oct 28, 2010 12:22 am

First post

I'm looking to make a simple breech system for a nerf gun barrel with outer diameter .625 and inner diameter .5 . There will be a cut made into this...

Last post

Being that this is a spring gun

oh?

7 Replies

3989 Views

Last post by jackssmirkingrevenge
Thu Oct 28, 2010 10:16 pm
Cannon Creator

Last post by Molybdenum
Replies: 36
by PVC Arsenal 17 » Mon Aug 20, 2007 10:32 pm
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Lol, no this isn't about the SF member.

I found this program on a water gun wesbite. It's limited, but it allows you to rotate and peice together a...

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The original link is no good. I've uploaded the file and posted the link in my thread.

Thanks. Where can I find your thread?
36 Replies

12892 Views

Last post by Molybdenum
Thu Oct 28, 2010 6:23 pm
i need higher pressure

Last post by jackssmirkingrevenge
Replies: 9
by qwert123 » Tue Oct 26, 2010 4:19 pm

First post

i only have a bike pump and can only get 80 psi is thir a good way to pressureize air

Last post

I don't see anything. :?

You can try tactical bacon :D

9 Replies

2675 Views

Last post by jackssmirkingrevenge
Wed Oct 27, 2010 10:38 pm
Small-Bore Combustions

Last post by Ragnarok
Replies: 22
by Lockednloaded » Mon Oct 25, 2010 9:39 pm
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This forum is full of medium sized pneumatics, most ranging from 1 -1/2 Bore, primarily made out of PVC, and used at compressor pressures. Most of...

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Quite easily, yes - the valveless nature and low density gasses of combustions can give them a lot more oomph at higher velocities than they get...
22 Replies

4241 Views

Last post by Ragnarok
Wed Oct 27, 2010 5:08 pm
My first attempt at soldering copper.

Last post by r00kie
Replies: 15
by r00kie » Mon Oct 25, 2010 11:37 pm
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I've mostly steered clear of copper in my launchers until now, except for the odd piece, I'd always make a mad dash for compression fittings though,...

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Much better.. Keep practicing so you get the hang on the right amount of heat. A properly done joint has no voids of missing solder. The entire joint...
15 Replies

7611 Views

Last post by r00kie
Wed Oct 27, 2010 12:21 pm
Steel fittings from mc master

Last post by ramses
Replies: 4
by Grignacke » Sat Oct 23, 2010 2:31 pm

First post

Hey guys, I've been hunting online, mainly mcmaster, for fittings for my planned hybrid. I've noticed alot of them indicate they are used for sch....

Last post

Yes. PVC is a big no-no. There are less painful ways to commit suicide.

4 Replies

1758 Views

Last post by ramses
Mon Oct 25, 2010 3:39 pm
Failed attempt at a silent TB launcher

Last post by jackssmirkingrevenge
Replies: 33
by Technician1002 » Sat Apr 18, 2009 1:38 pm
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Just for grins I built a tennis ball barrel for my marshmallow cannon out of 160 PSI 2.5 inch PVC 36 inches long for a compact attempt at a silent...

Last post

A heavier projectile will accelerate at a slower rate, giving the propelling gas more time to expand in the barrel and therefore lowering the...
33 Replies

11557 Views

Last post by jackssmirkingrevenge
Mon Oct 25, 2010 2:44 am
Science progect idea

Last post by Technician1002
Replies: 6
by mach10 » Sun Oct 10, 2010 11:15 am

First post

For my science project I am going to build a air cannon and fire it at the same pressure and angel but with different density gases ,and see if the...

Last post

I forgot to mention, the gas flow through the valve will be better with light gas if you are using a restrictive valve. You will see a large variable...

6 Replies

2292 Views

Last post by Technician1002
Sun Oct 24, 2010 10:04 am
Flat AA battery. I challenge some1 to replicate this. video*

Last post by Technician1002
Replies: 17
by jhalek90 » Fri Oct 15, 2010 10:12 am
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I was inspired by another member on this forum, to see what kind of damage I could do to a AA battery. It was destroyed.

I took a few photos, and a...

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Video, photos, etc. of your 2 inch please. Hope to see it in the showcase soon. Let me know when you try a 100 PSI shot. With my ABS test cannon it...
17 Replies

6432 Views

Last post by Technician1002
Fri Oct 22, 2010 10:23 pm
Microphone chronograph

Last post by MrCrowley
Replies: 9
by saefroch » Tue Oct 19, 2010 11:38 am

First post

I am thinking of calculating muzzle velocity using the method that I believe Technician1002 used with his QDV cannons, firing a magnetic projectile...

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With help from both Jimmy101 and Technician1002, I tried both methods, light and audio. I made a thread about it here .

9 Replies

2957 Views

Last post by MrCrowley
Fri Oct 22, 2010 6:42 pm
Soda Can Barrel

Last post by jrrdw
Replies: 4
by jester420247 » Thu Oct 21, 2010 1:46 am

First post

Hi all,
I am just getting started and will be posting my cannons soon, but I was curious if anyone could point me in the direction of the size PVC...

Last post

Nice work guys! :D

Welcome to Spudfiles.

4 Replies

2587 Views

Last post by jrrdw
Thu Oct 21, 2010 2:16 pm
Another fridge compressors in series thread...

Last post by Crna Legija
Replies: 24
by al-xg » Mon Jul 12, 2010 5:31 am
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I was just trying to convince someone to be extremely careful as he wants to attempt feeding 40bar into a fridge compressor (testing to failure) to...

Last post

i think a french guy got to like 1000+, cant find the thread.
24 Replies

10228 Views

Last post by Crna Legija
Tue Oct 19, 2010 7:57 pm
launcher design

Last post by jackssmirkingrevenge
Replies: 45
by jackssmirkingrevenge » Wed Jul 21, 2010 1:28 pm
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Not strictly related to spudguns but since many builders here make the effort to produce launchers which are not only ergonomic but look good, I...

Last post

Here's one of jsr's prototypes

wanker :D

Sword Chucks, yo!

I've been watching Breaking Bad (which I like 'cause it's all laboratory and...
45 Replies

14227 Views

Last post by jackssmirkingrevenge
Mon Oct 18, 2010 3:11 pm
Anyone in Massachussets

Last post by clemsonguy1125
Replies: 2
by Benjg555 » Wed Oct 13, 2010 6:51 pm

First post

Hey I live in Peabody. Any of you guy live in or near peabody mass.
If so let's meet!!

Last post

Here it is

2 Replies

2965 Views

Last post by clemsonguy1125
Thu Oct 14, 2010 5:30 pm
what's the best thing to use for a trigger?

Last post by Moonbogg
Replies: 10
by selene1134 » Tue Oct 12, 2010 12:12 am

First post

lately i have been using fuses on my bigger cannons. what's best to use for a trigger?

also check out this video of a guy trying to play cricket...

Last post

It's also simple to take care of them. This place just needs a heavier banhammer and a greater number of active moderators.

... and maybe a...

10 Replies

4227 Views

Last post by Moonbogg
Thu Oct 14, 2010 1:19 am
Step by step to building a cheap oak stock

Last post by Mr.Sandman
Replies: 33
by jook13 » Mon Mar 16, 2009 1:27 am
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Not to long ago, I made a copper coaxal gun and added a little stock on it. The stock proved to be popular, even though it was a little afterthought....

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HOLY @^$@%* Those guns make me want to #$&^$%& myself. Thanks for sharing :shock: :lol: Nice post, definitely one of your better ones. @Jsr, quite...
33 Replies

19299 Views

Last post by Mr.Sandman
Mon Oct 11, 2010 7:16 pm
compressed air vapor?

Last post by raptorforce
Replies: 3
by raptorforce » Mon Oct 11, 2010 1:12 pm

First post

When the air is compressed for an air cannon, and when it is shot a steam like vapor comes out of the barrel. What is this called? What causes it?...

Last post

Thank you so mcuh for your responses, very informative

3 Replies

1737 Views

Last post by raptorforce
Mon Oct 11, 2010 4:34 pm
I need Spudgun failure pics please

Last post by jackssmirkingrevenge
Replies: 7
by geardog32 » Thu Oct 07, 2010 8:43 pm

First post

I am going to be writing a manual on spud guns for my technical and science writing class and I need pictures of spud gun failures for my proposal. I...

Last post

Ask JSR to send you some pics... he would be more than happy to help :wink:

Already available on the previously referenced thread :P

7 Replies

3584 Views

Last post by jackssmirkingrevenge
Mon Oct 11, 2010 12:14 am
Build a pressure regulator?

Last post by Gippeto
Replies: 4
by lozz08 » Sat Oct 09, 2010 11:13 pm

First post

Hello all, I'm currently contemplating trying to make a pressure regulator myself for my bb cannon. The reason is that my tank can hold 400PSI but I...

Last post

The guage ports on mine are 1/4 npt....easy to plug.

With $100 budget, you shouldn't have too much trouble finding something.

Good luck. :)

4 Replies

3206 Views

Last post by Gippeto
Sun Oct 10, 2010 12:22 am
stainless check valve

Last post by POLAND_SPUD
Replies: 6
by wngovr » Thu Oct 07, 2010 11:01 pm

First post

I bought these valves from ebay. 21$ a piece. My plan was to use one in a piston hybrid but I don't think it can be done. What do you guys think?
Im...

Last post

I get the idea.
Well, it's down to whether you want to use the piston it already has or whether you want to get a new one....

I know that water...

6 Replies

3085 Views

Last post by POLAND_SPUD
Sat Oct 09, 2010 10:14 am
o-rings and tolerances questions

Last post by velocity3x
Replies: 5
by cfb_rolley » Thu Sep 23, 2010 3:51 am

First post

so i'm currently half way through designing my new advanced combustion, and i do have access to a machine shop that can do CNC machining for me, so...

Last post

i do have access to a machine shop that can do CNC machining for me

are there standard sizes of o-rings that are readily available? and also how...

5 Replies

1615 Views

Last post by velocity3x
Tue Oct 05, 2010 6:49 pm
Self-closing piston valve (brass fittings)

Last post by Ragnarok
Replies: 66
by MRR » Mon Mar 09, 2009 10:22 am
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This is the way I build a high pressure self-closing piston valve (barrel sealer).

min. actuation pressure: 30 psi (varies due to the used spring...

Last post

yea my computer started to slow down and i thought it was gonna stuff up so i just hit submit before i spell checked it
Form and camber are both...
66 Replies

45291 Views

Last post by Ragnarok
Tue Oct 05, 2010 8:15 am
My first cannon OUCH!

Last post by Benjg555
Replies: 17
by Benjg555 » Thu Sep 30, 2010 4:49 pm
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Hey you guys first post here just became a member:) i have drawn a plan out for my first cannon. Its going to have changable barrels so i can shoot...

Last post

Alright thanks I'm looking at it now
17 Replies

5740 Views

Last post by Benjg555
Sun Oct 03, 2010 7:48 am

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