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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

1124913 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

72004 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

900172 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

231415 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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First post

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

250396 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

352964 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

5241439 Views

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

Topics

is this a totaly stupid idea?

Last post by jrrdw
Replies: 6
by squishie » Sat May 15, 2010 7:17 am

First post

liquid nitro + metal insulated thermos = ammo?

or am i just being stupid again

Last post

In this case it's just to risky and dangerous...

locked.

6 Replies

2463 Views

Last post by jrrdw
Sat May 15, 2010 5:38 pm
Projectile Aerodynamics Research

Last post by Ragnarok
Replies: 9
by Lentamentalisk » Tue May 11, 2010 6:52 pm

First post

Hey everyone,
For my end of year Stat project, I am going to measure spread, and energy loss over distance, for various different shaped projectiles....

Last post

Maybe even calculate and sketch a Cd curve... that would be pretty cool.
Don't expect that to be easy. Most of the time, they're calculated using...

9 Replies

6246 Views

Last post by Ragnarok
Thu May 13, 2010 7:24 am
High Voltage Wire

Last post by Technician1002
Replies: 4
by mark.f » Sun May 02, 2010 12:05 pm

First post

Hi all.

I was about to go run around looking for old TV's to pull some flyback wire out of, but then got turned off by all the rain we're getting....

Last post

Just some notes on wire insulation;

The rated voltage is the working AC voltage of the insulation where it does not degrade over time due to the...

4 Replies

2072 Views

Last post by Technician1002
Mon May 03, 2010 3:47 pm
Bondo Ammunition

Last post by Gaderelguitarist
Replies: 9
by MikeNice » Fri Apr 30, 2010 6:08 pm

First post

Has anyone here ever made Bondo spudgun rounds? Here's my thinking: Take a few 4 long pieces of 2 PVC and pack them with Bondo. Once the Bondo...

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I thought about plaster but thought it would take too long to dry

True enough, but I think you can occupy yourself for 30 minutes. Just make large...

9 Replies

4936 Views

Last post by Gaderelguitarist
Sat May 01, 2010 9:55 pm
Aluminum water bottles

Last post by squishie
Replies: 8
by Slauma » Mon Apr 26, 2010 3:01 pm

First post

I'm sure many of you have seen these aluminum water bottles around.

I was wondering what your thoughts are on the use of one of these as an air...

Last post

well there are good bottles only they dint and scratch really easy your far better of stealing or buying a fire extinguisher like $20-40

8 Replies

6434 Views

Last post by squishie
Wed Apr 28, 2010 5:03 am
SDR pipe

Last post by Gun Freak
Replies: 25
by skyjive » Fri Apr 16, 2010 11:47 am
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Does anyone know a good place to order SDR pipe online? Specifically SDR 26 2.5 (beer can size :D )? Thanks

Last post

My pipe, I just found out, is sdr 26.
My brother already found some at the range :D
25 Replies

7146 Views

Last post by Gun Freak
Sun Apr 25, 2010 5:07 pm
Idea for a mag on this design?

Last post by Gun Freak
Replies: 9
by Gun Freak » Mon Apr 19, 2010 7:25 pm

First post

Does anybody know how I can make a mag for this design... It needs to be able to be made without machining or anything like that and I don't want it...

Last post

I probably won't get to this launcher for a while because I'm busy with some others, but when (if) I do, I will :)

9 Replies

4938 Views

Last post by Gun Freak
Thu Apr 22, 2010 1:43 pm
Q. for Aussies

Last post by chinnerz
Replies: 6
by chinnerz » Wed Apr 21, 2010 2:27 am

First post

Let me state first that i would rather buy something from a shop than online.

Ok, i would like to know where to get various sized O-rings and metal...

Last post

cool, thanks guys!!

i guess ill have to look into those pipe... telescope, so that's what you call that :) lol im such a noob

6 Replies

3350 Views

Last post by chinnerz
Wed Apr 21, 2010 5:41 am
A Marble and a Cork

Last post by boyntonstu
Replies: 11
by boyntonstu » Tue Apr 20, 2010 7:50 am

First post

I countersunk a dimple on the face of the cork and hot glued the marble into it.

These are rough prototypes before cleanup.

This design may offer...

Last post

Using the primer hole up front, you add dead space inside the empty hull.

You push a marble into the hull and place hot glue on the crimp.

When you...

11 Replies

4094 Views

Last post by boyntonstu
Tue Apr 20, 2010 9:46 pm
Anyone modded a QEV for flow before?

Last post by MrCrowley
Replies: 16
by MrCrowley » Sun Apr 18, 2010 10:27 pm
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Has anyone thought about removing the supports from inside the barrel port of a McMaster QEV before? If you don't know what i'm talking about, look...

Last post

Dremel wouldn't do the job except for a little sanding down. Had to use a drill, which was pretty dodgy because a few times it jumped and almost took...
16 Replies

4731 Views

Last post by MrCrowley
Tue Apr 20, 2010 4:03 pm
burst pressure of 1" black iron

Last post by SpudBlaster15
Replies: 8
by the unit » Mon Apr 19, 2010 4:09 pm

First post

I was wondering if someone could calculate the burst pressure of a piece of 1 black iron pipe for me, as I do not know how to. The wall thickness is...

Last post

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

8 Replies

3506 Views

Last post by SpudBlaster15
Mon Apr 19, 2010 10:05 pm
Cheapest cannon possible

Last post by Moonbogg
Replies: 14
by Duct Tape » Sun Apr 18, 2010 6:39 am

First post

Can anyone beat my cheapness?

It launches a football over 200 feet, cost $5 for the duct tape. The cans were free. I already had the propane blow...

Last post

Nice cannon, and you can't beat the cost of materials there. It looks like fun because of how huge it is.

14 Replies

6676 Views

Last post by Moonbogg
Sun Apr 18, 2010 4:17 pm
10 gauge barrel and projectile match with MSC stainless tube

Last post by Ragnarok
Replies: 2
by Kanonier » Wed Apr 14, 2010 12:08 pm

First post

I noticed that MSC sells seamless stainless tubing with an ID of .777 , and that 10 gauge shotgun bore size is .775 . This tube may work great as a...

Last post

I noticed that MSC sells seamless stainless tubing with an ID of .777 , and that 10 gauge shotgun bore size is .775 .
Watch out for tolerances....

2 Replies

3147 Views

Last post by Ragnarok
Wed Apr 14, 2010 2:11 pm
Basketball cannon anyone?

Last post by DR
Replies: 20
by daberno123 » Sun Mar 07, 2010 2:52 pm
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First post

eBay- 10 PVC pipe $16.00 per foot

Tempting...

Last post

@DR
Where did you get your pipe from? Was it a store or a construction site?

I'd still like to give this a try, but without breaking the bank. So...
20 Replies

9846 Views

Last post by DR
Mon Apr 12, 2010 11:50 pm
Pipe FITTING Dimensions?

Last post by Bluetooth
Replies: 7
by Gun Freak » Sun Apr 11, 2010 6:11 pm

First post

Does anybody know of a site with pipe fitting dimensions? I want to design a valve to scale.
Thanks.

Last post

On that note, the the inside diameter of pipe also goes by that rule. The I.D. of fittings and the O.D. of pipe can also vary slightly from batch to...

7 Replies

5231 Views

Last post by Bluetooth
Mon Apr 12, 2010 4:26 pm
Ridiculous Stungun Mfg. Claims

Last post by grock
Replies: 3
by mark.f » Sat Apr 10, 2010 12:31 pm

First post

Is it just me or is anybody else really annoyed at stungun manufacturers' claims as to voltage?

Take the example I've posted below: 2.8 million...

Last post

I lold at the self charging charger. its probably a self charging charger after you add batteries

3 Replies

2025 Views

Last post by grock
Sun Apr 11, 2010 11:27 pm
damage or distance

Last post by jackssmirkingrevenge
Replies: 8
by jor2daje » Mon Apr 05, 2010 9:53 pm

First post

Hi guys been a while since I posted but Ive been keeping my eye on things here, I recently got a old shopsmith 10er of craigslist for $60 and Ive...

Last post

damage and distance go hand in hand, assuming you define damage as depth of penetration , because the better a projectile is at penetrating a target...

8 Replies

3429 Views

Last post by jackssmirkingrevenge
Sat Apr 10, 2010 2:33 am
12 Gauge Shotshell hull nail dart.

Last post by ThegunGuy
Replies: 5
by boyntonstu » Fri Apr 02, 2010 4:44 pm

First post

This dart is almost a perfect fit in 3/4 Type L copper tubing.

This photo shows the brass ring, but it was cut off prior to shooting.

The weight is...

Last post

Shotgun shells are nice because you can put almost any kind of payload into it. And then when the shell is all torn up weld a nail to a few washers...

5 Replies

3168 Views

Last post by ThegunGuy
Thu Apr 08, 2010 10:58 am
Idea for a shotgun/grenade shell

Last post by whitexnightjp
Replies: 21
by whitexnightjp » Sat Mar 13, 2010 9:41 pm
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hey guys first topic post I have just been playing with the idea of my own grenade shell and i wanted to have some imput from some far more...

Last post

hey guys new update for my design
will it work?
21 Replies

7803 Views

Last post by whitexnightjp
Sat Apr 03, 2010 3:02 pm
Finding a slide valve

Last post by qwerty
Replies: 3
by qwerty » Thu Apr 01, 2010 1:17 pm

First post

Does anyone know where i can get a slide valve in either in the UK or from a UK site?

Thanks i would realy appreciate any help.

(Now off to do more...

Last post

Thanks very much, those links helped alot.

3 Replies

1621 Views

Last post by qwerty
Thu Apr 01, 2010 3:22 pm
Acrylic paint on PVC

Last post by Gun Freak
Replies: 5
by Gun Freak » Sat Mar 27, 2010 10:16 am

First post

I plan to give my next gun a nice camoflauge paint job and was wondering if acrylic paint would weaken the pipe in any way. I have lots of it and I...

Last post

Ok thanks.
Bout my sig... you can instantly die without a headshot... btw you reminded me to change it :)

5 Replies

3444 Views

Last post by Gun Freak
Sun Mar 28, 2010 6:07 pm
.740 Bore Projectile

Last post by Gippeto
Replies: 6
by dewey-1 » Wed Mar 24, 2010 2:16 pm

First post

Here is probably the most ideal, consistent and accurate projectile you could use for a smoothbore home built launcher!

You can not home build one...

Last post

Maybe with a shotgun wad it'll fit the co-ax...Hmmm.

Something to think about, but they are awfully light at only 1 oz.

Thanks for the link Dewey,...

6 Replies

3004 Views

Last post by Gippeto
Wed Mar 24, 2010 10:34 pm
Airsoft shotgunshell/grenade 2?

Last post by whitexnightjp
Replies: 6
by whitexnightjp » Wed Mar 24, 2010 3:06 pm

First post

hey guys i had previously posted an idea for a airsoft style grenade(madbull)
but i scraped the idea after some helpful advise but i came up with two...

Last post

The only trouble I'm thinking you might have is with the spring. the spring is only there to reset the hammer valve but there are two different...

6 Replies

3042 Views

Last post by whitexnightjp
Wed Mar 24, 2010 7:42 pm
McMaster Sleeve Valve Flow

Last post by POLAND_SPUD
Replies: 1
by Slauma » Wed Mar 24, 2010 11:44 am

First post

I think this is the right place for this, but if it's not then sorry, please move.

Has anyone had experience with the sleeve valves Mcmaster sells?...

Last post

just find some real company that produces them...
example ...

you might also try festo, humprey, legris, or any other company that comes to mind

1 Replies

1361 Views

Last post by POLAND_SPUD
Wed Mar 24, 2010 3:42 pm
Small bore vs. big bore - bullet performance

Last post by dewey-1
Replies: 20
by FighterAce » Mon Mar 22, 2010 3:00 pm
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I've been making nail darts for about 1 year and never really complained about the 10cm grouping at 10 meters. But now I'm looking towards 10cm...

Last post

I was referring to pellets as ammo, I did not mention using or buying an air rifle/pistol.

Make your projectile similar to a pellet. Scaled in size...
20 Replies

9434 Views

Last post by dewey-1
Tue Mar 23, 2010 2:32 pm

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