Ammo & Materials

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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

1124911 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

72002 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

900167 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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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

250394 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

352960 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

5241416 Views

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

Topics

taping the side of a pipe?

Last post by Matt_NZ
Replies: 8
by Crna Legija » Fri Oct 15, 2010 1:18 am

First post

Is it safe to tape a 1/2 inch BSP in the side of a 1'' galvanized steel pipe with 3.8mm wall thickness. Its so my chamber(600psi) will be closer to...

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Beautiful weld. did you do that?

Yeah, its beautiful mate *kiwi accent*:lol:.
I'm sure it was done with a TIG welder, my welds don't look quite...

8 Replies

4209 Views

Last post by Matt_NZ
Fri Oct 15, 2010 11:17 pm
Heating and bending a blowgun?

Last post by clemsonguy1125
Replies: 18
by Gun Freak » Mon Oct 11, 2010 7:28 pm
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I might try bending one of these blowguns on the nozzle part, so should a propane torch do the job and will it still be able to hold pressure...

Last post

I just use my dremal with a metal cut off wheel
18 Replies

6179 Views

Last post by clemsonguy1125
Thu Oct 14, 2010 4:44 pm
2" ammo for my cannon

Last post by Benjg555
Replies: 5
by Benjg555 » Mon Oct 11, 2010 9:48 am

First post

Hey I've been having trouble getting 2inch ammo. i shot a golf ball with ice cubes, my dogs toy, another dog toy. I had a good ball but now I can't...

Last post

Ya I was thinking about those I still am.

5 Replies

2664 Views

Last post by Benjg555
Mon Oct 11, 2010 5:44 pm
Purple Primer VS. Clear Primer?

Last post by Fnord
Replies: 11
by motorfixer1 » Thu Oct 07, 2010 6:15 pm

First post

So, I was browsing one of the sites that advertises on here, as well as sells launchers and related items the other day. Across the bottom of the...

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Most building codes require the primer stain to be showing on pw systems, so the inspectors know it's done properly. This is irrelevant in our...

11 Replies

19985 Views

Last post by Fnord
Fri Oct 08, 2010 1:11 pm
Po-jectile accuracy

Last post by Fnord
Replies: 1
by irickedit » Fri Oct 01, 2010 2:06 pm

First post

I'm close to done with my RPG-2.0-P build so I can start working on ideas for accurate ammo. The thing is, it's hard to beat good old taters for...

Last post

Don't delude yourself into believing spuds have a controllable trajectory. They have about the same level of control as a monkey on crack with a...

1 Replies

1388 Views

Last post by Fnord
Fri Oct 01, 2010 2:11 pm
Making magic with PVC

Last post by Technician1002
Replies: 7
by Technician1002 » Wed Sep 22, 2010 11:48 am

First post

Sorry for the title. I was thinking a place to put all the PVC construction tips in one place for an easy reference. After having success bending...

Last post

I had to try this. I stopped by my local hardware store and found the right cleaner. :D I have some oil dye that is used to find leaks in...

7 Replies

4122 Views

Last post by Technician1002
Thu Sep 30, 2010 6:19 pm
solder vs epoxy

Last post by Technician1002
Replies: 14
by lozz08 » Tue Sep 28, 2010 10:40 am

First post

Hi people. I have never used solder and copper pipe would anyone know about how much pressure a solder bond could take? Does solder stick to brass?

Last post

If you have never soldered copper pipe, there are some very excellent online youtube turorials.

If you move up to hard solder, often called silver...

14 Replies

7875 Views

Last post by Technician1002
Wed Sep 29, 2010 10:14 am
want to start milling aluminium

Last post by ramses
Replies: 3
by lozz08 » Tue Sep 28, 2010 4:55 am

First post

Hello all, calling out the machinists among us.,i really want to get into machining aluminiumparts, i want to save up for some basic equipment and...

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mini mill if small parts,

Grizzly 0704 if larger. Both are under 300lbs, the Grizzly comes with a stand.
Both have variable speed motors, R8...

3 Replies

1311 Views

Last post by ramses
Tue Sep 28, 2010 3:22 pm
adhesives

Last post by spudamine
Replies: 5
by jackssmirkingrevenge » Sun Sep 19, 2010 1:58 am

First post

Have some informative glue pr0n :D

Last post

'Mail bonding' LOL

Although this was quite interesting I was only prpared to give up about 10 minutes of my life to adhesives, not the full 40 :lol:

5 Replies

4777 Views

Last post by spudamine
Sun Sep 19, 2010 6:52 am
Need somebody to do me a favor

Last post by Gun Freak
Replies: 11
by Gun Freak » Sat Sep 11, 2010 11:54 am

First post

I am looking for somebody who has cut off half of their blowgun for extra flow like this:

I need to know if I can tap 1/4 threads in it, or any...

Last post

Its a coaxial piston valve, 1.25 chamber, .5 barrel that fires airsoft shells. The pilot is the blowgun which will be modded to be a three way valve...

11 Replies

4162 Views

Last post by Gun Freak
Sat Sep 11, 2010 8:49 pm
metal body working mg34

Last post by urgle the danish cow
Replies: 4
by urgle the danish cow » Mon Sep 06, 2010 7:28 pm

First post

im not sure if this is the right place to ask this but w/e.
any way i am currently building an mg 34 and i am having trouble figuring out how i will...

Last post

Cut it with a grinder or hack saw
preferably with a hacksaw or band saw

4 Replies

1741 Views

Last post by urgle the danish cow
Wed Sep 08, 2010 4:59 pm
Pipe/Fitting Specifications

Last post by Lockednloaded
Replies: 2
by Lockednloaded » Mon Sep 06, 2010 6:15 pm

First post

There doesn't seem to be a thread on pipe/fittings specs, so I think everyone should post links to websites that have pip/fitting ODs, IDs, pressure...

Last post

never seen that, but there need to be specs on metal pipe and fittings as well

2 Replies

1313 Views

Last post by Lockednloaded
Tue Sep 07, 2010 8:47 pm
Balloon time helium tank

Last post by Technician1002
Replies: 4
by spikerbond » Mon Sep 06, 2010 4:33 pm

First post

I was wondering if this tank would be safe to use:

it says not to refill it, but i dont see why i couldnt. i was also wondering if any of you know...

Last post

Put in a larger valve than the original. I recommend one like this;

Original;

In modification;

Can damage;

4 Replies

6492 Views

Last post by Technician1002
Mon Sep 06, 2010 8:23 pm
Need help with Spring material and specs

Last post by saefroch
Replies: 3
by BigBang J » Mon Sep 06, 2010 6:02 pm

First post

Calculating spring specs and materials just is not making sense to me, and I can't seem to get a clear direction from one place as to how to...

Last post

I believe D_Hall sent you a series of links to Wikipedia that should have explained this to you, but I guess I'll do it for you.

Calculating the...

3 Replies

1488 Views

Last post by saefroch
Mon Sep 06, 2010 8:04 pm
Foam Casting?

Last post by Technician1002
Replies: 11
by Lockednloaded » Mon Aug 30, 2010 10:32 pm

First post

I have recently made a 2 bore mortar that fires primarily NERF pocket vortex footballs. It fires great, but NERFs are expensive, and even when i...

Last post

Car wax works as a cheap mold release. The foam in a can does not cure in a closed container. 2 part foam works well in a container, but can cause...

11 Replies

5533 Views

Last post by Technician1002
Tue Aug 31, 2010 6:55 pm
Material Choices Need Help

Last post by ramses
Replies: 2
by AlphaOmega » Sat Aug 21, 2010 3:32 pm

First post

I am finally going to build my first airsoft gun. I have a few questions concerning its construction. I was planning on using A513 type 5 DOM steel...

Last post

any seamless tube will work as a barrel, but the stiffer, the more accurate (after you get a good fit with the projectile). I would recommend...

2 Replies

2239 Views

Last post by ramses
Wed Aug 25, 2010 3:17 pm
Material Choices Need Help

Last post by Gaderelguitarist
Replies: 1
by AlphaOmega » Sat Aug 21, 2010 3:33 pm

First post

I am finally going to build my first airsoft gun. I have a few questions concerning its construction. I was planning on using A513 type 5 DOM steel...

Last post

www.mcmaster.com is a great U.S. based materials distributor.

As for your other questions, perhaps you could include a diagram of your current...

1 Replies

1832 Views

Last post by Gaderelguitarist
Sun Aug 22, 2010 12:28 am
Help me pimp my compressor

Last post by jackssmirkingrevenge
Replies: 98
by spudamine » Mon Apr 19, 2010 3:37 pm
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So I've just got a fridge compressor, I actually bought one new off of ebay as there are not many abandoned fridges to be found around here, problem...

Last post

(the power tends to go off when the zombies attack :lol: )

Well played! I have plans to rig my compressor to my bicycle for the same reason! :D...
98 Replies

31019 Views

Last post by jackssmirkingrevenge
Fri Aug 20, 2010 2:48 pm
Another convert to the dark side

Last post by lozz08
Replies: 26
by JDP12 » Wed Aug 11, 2010 4:01 pm
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well I was at my local hardware store, and guess what I stumbled upon--- marine epoxy. I got 1/2 lb of it, and am hoping to begin my descent into the...

Last post

i always put my epoxied items on top of my wood heater or next to my oil heater for a number of hours. increases bond strength and decreases set time.
26 Replies

12189 Views

Last post by lozz08
Sat Aug 14, 2010 6:55 am
any size ammo cheap

Last post by SpudFarm
Replies: 4
by itsnotmyblood » Fri Aug 13, 2010 11:16 pm

First post

take 86% water and 14% saw dust by weight mix it poor it in a mold freeze it. its called pykrete. look up a video i think it would be a good ammo...

Last post

with newspaper instead.

Have you been watching Mythbusters lately? :D

4 Replies

2869 Views

Last post by SpudFarm
Sat Aug 14, 2010 2:53 am
I am retiring from potatoe guns and selling my materials

Last post by jrrdw
Replies: 5
by LCTChamp » Sun Aug 08, 2010 11:40 am

First post

Hello everyone, I used to post here all the time and had numerous spud guns. I've grown out of this hobby and need a little extra space in my garage....

Last post

Why this got locked here .

When your Ebay auction has 2 days left, post the Ebay url here .

5 Replies

2124 Views

Last post by jrrdw
Thu Aug 12, 2010 5:58 pm
1/4in outer diameter tubing

Last post by c11man
Replies: 8
by skishoot » Tue Aug 10, 2010 8:24 am

First post

what pressure will vinyl 1/4in od tubing hold i/ve had it at 125 with no problem but it doesn't have a pressure rating on it does anybody have any...

Last post

yeah it definetly will be fine up to 125psi

8 Replies

2480 Views

Last post by c11man
Tue Aug 10, 2010 3:58 pm
Hybrid Aluminum Pipe Warping

Last post by Technician1002
Replies: 7
by zomgwtfbbq » Sat Aug 07, 2010 4:15 am

First post

I have an aluminum pipe that I sent for milling. This pipe is the body of my semi-auto cartridge-fed hybrid and I milled it because I had to cut a...

Last post

It may be a result from stress in the aluminum. When it is machined, the stress is no longer balanced and the part looses it's shape. You may just...

7 Replies

2979 Views

Last post by Technician1002
Sun Aug 08, 2010 5:58 am
Spring advice

Last post by irisher
Replies: 9
by irisher » Wed Aug 04, 2010 3:33 pm

First post

For an upcoming project I had to make a magazine. The problem I have encountered is with the spring on the magazine. I am trying to get a rectangular...

Last post

I appreciate the links but, I can't order from the UK one and the other has nothing I can't just get at my hardware store.

9 Replies

2416 Views

Last post by irisher
Thu Aug 05, 2010 3:12 pm
27 year old 2" Sprinkler Valves

Last post by jackssmirkingrevenge
Replies: 7
by MrCrowley » Mon Aug 02, 2010 6:20 pm

First post

Just picked up four 2 sprinkler valves for $20NZD (10-15USD), problem is they're 27 years old haha. I think I can get at least one or two working, I...

Last post

Kiwible , surely :D

Yes, the one should suffice - and one of those 1 inchers would make a good pilot ;)

7 Replies

3023 Views

Last post by jackssmirkingrevenge
Thu Aug 05, 2010 12:58 am

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