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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

1091185 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

69633 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

887350 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

224331 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...

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

244721 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

346413 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

5227851 Views

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

Topics

Barlow's formula

Last post by cdheller
Replies: 5
by DYI » Fri Apr 25, 2008 6:35 pm

First post

Just a quick question, but I believe I'm doing something wrong here.

Using Barlow's formula, I ended up with a burst pressure of ~4300psig for a 4...

Last post

I'm not coming up with any of the above answers .

using online calculator at

Engineers Edge Design & Engineering Resources
OD (in) 4.50 (in)...

5 Replies

4229 Views

Last post by cdheller
Sat Apr 26, 2008 1:49 pm
How do you cement rubber?

Last post by goathunter
Replies: 8
by dongfang » Fri Apr 25, 2008 3:59 am

First post

Hi,

Does anyone know a reliable way to glue/cement rubber?

I know there is one Loctite product (name / number?) that is often used for making...

Last post

Actually certain types of cynocrylate(aka super glue) will work(depends largely on whether or not you buy the gel or liquid types). I know in the US...

8 Replies

2674 Views

Last post by goathunter
Fri Apr 25, 2008 3:43 pm
My first cannon ,, and allready havin' questions!

Last post by jimmy101
Replies: 6
by freez » Fri Apr 25, 2008 1:14 am

First post

hi, this is actualy my first air gun i am making ,,
but i got a question for youre guys i am strugglin' with
i know , i allready drilled a hole ,,...

Last post

Freez... welcome to the forum.

How good are you at math and physics? Do you know how to calculate how much force there is on the valve you have...

6 Replies

2446 Views

Last post by jimmy101
Fri Apr 25, 2008 2:44 pm
Microwave= target practice

Last post by dongfang
Replies: 17
by brogdenlaxmiddie » Mon Apr 14, 2008 7:53 pm
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hey guys- I have a microwave that is in good condition but, we're getting rid of. Anything I should take out of it for spudgun parts before it gets...

Last post

Hi,

If you are researching in combustion of hybrid cartridges (a bottle with a pre-compressed fuel-air mixture in them, and a projectile at one...
17 Replies

5746 Views

Last post by dongfang
Fri Apr 25, 2008 4:06 am
pressure rated 3" and 4" fittings?

Last post by JDP12
Replies: 4
by JDP12 » Tue Apr 22, 2008 8:27 pm

First post

Hey all, i can't for the life of me find pressure rated 3 and 4 fittings.

Even mcmaster has let me down, they only have gravity flow rated parts.

I...

Last post

oh i didn't know 61 was same as pw, thanks guys

4 Replies

1493 Views

Last post by JDP12
Tue Apr 22, 2008 8:39 pm
lead AA batery!

Last post by drex
Replies: 12
by drex » Mon Apr 21, 2008 7:05 pm

First post

cut of one end of a AA battery and use a 3/8 drill bit to git all of the crap out of it (MnO2 i think). then fill it up with molten lead, before the...

Last post

i was thinking of makeing fins like this

12 Replies

5322 Views

Last post by drex
Tue Apr 22, 2008 7:06 pm
Small Engine Parts For Use In....

Last post by THUNDERLORD
Replies: 8
by THUNDERLORD » Tue Apr 22, 2008 2:19 am

First post

Just wondered if anyone has considered the use of small combustion engine parts in designing pneumatic or hybrid construction :?:

I have been...

Last post

I had this idea back on spudtech where gas would be fed into an air motor like this one , used to rotate the barrels of a gatling type gun, and the...

8 Replies

2513 Views

Last post by THUNDERLORD
Tue Apr 22, 2008 3:12 pm
cam lock help

Last post by clide
Replies: 1
by JDP12 » Tue Apr 22, 2008 12:13 pm

First post

hey all, i need a set of cam locks for my huge combustion that i am building. mcmaster has them, but not as cam locks, go to the aluminum pipe...

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I don't know if the metal ones are built the same as the plastic ones, but a 2 plastic one allows 1.5 breech loading if you remove some material from...

1 Replies

1451 Views

Last post by clide
Tue Apr 22, 2008 1:18 pm
Digital Pressure Switchs?

Last post by THUNDERLORD
Replies: 9
by THUNDERLORD » Mon Apr 21, 2008 12:05 am

First post

I had one main thought today about constant factors which could be used in design for spud type technology those are:
1---Pressure : All launchers...

Last post

@ jimmy101, awesome that you replied, It's funny that you're the exact electronics person I was thinking of maybe posting a schematic after I read...

9 Replies

3248 Views

Last post by THUNDERLORD
Mon Apr 21, 2008 10:45 pm
Mighty Putty

Last post by rcman50166
Replies: 8
by TurboSuper » Sat Apr 19, 2008 11:07 pm

First post

So I was watching the teevee today, when an ad comes on for Mighty Putty . Apparently, it's this two part solid epoxy you mix through kneading, and...

Last post

Ugh... I hate Billy Mayes. (The spokesperson that you probably saw on T.V.) He shouts the entire time and they still haven't replaced him. Anyway a...

8 Replies

3316 Views

Last post by rcman50166
Sun Apr 20, 2008 12:10 pm
helpfull links thread

Last post by MrCrowley
Replies: 10
by trae08 » Sat Sep 01, 2007 4:45 pm

First post

ok i dunno if y'all will like this or not but i think it is a good idea so here it is.

the way it is, is like this if you have a link with some...

Last post

This thread is pretty old, but he meant to discuss what links should go into the Wiki in this thread. Though i'm pretty sure something else has...

10 Replies

4889 Views

Last post by MrCrowley
Sun Apr 20, 2008 5:09 am
Retractable fins

Last post by tmacd995
Replies: 21
by daccel » Tue Apr 15, 2008 8:09 pm
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I was thinking today about how to make fin stabilized ammo that would be accurate and cheap, and doesn't need a sabot, and came up with this.

It...

Last post

I think what Blitz posted would be amazing, somebody make it and I will be happy to use it.
21 Replies

6215 Views

Last post by tmacd995
Fri Apr 18, 2008 10:50 am
8" SCH 40 steel pipe - ideas?

Last post by THUNDERLORD
Replies: 31
by DYI » Thu Apr 10, 2008 4:49 pm
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I found a 3 foot long chunk of 8 SCH 40 seamless steel pipe at the welder's, behind the shop. He'll give me the whole thing for $30 or so if I want...

Last post

Hello DYI, Good to see you're still considering a recoiless :)
I got use of computer again but for some reason not for today.
So I'm back in...
31 Replies

6428 Views

Last post by THUNDERLORD
Thu Apr 17, 2008 1:00 pm
Need some 2" Sch 80

Last post by clide
Replies: 5
by spudman029 » Fri Apr 11, 2008 11:50 am

First post

I am going to need 2, 3 foot sections of grey 2 sch80 pipe for an upcoming project. Is there anyone on here who would be able to sell me some? My...

Last post

I live in the same area as him and I can vouch that it is hard to come by. I've kept my eye open for it everywhere I go for several years now.

My...

5 Replies

2454 Views

Last post by clide
Tue Apr 15, 2008 4:59 pm
Epoxy Health Issues

Last post by jrrdw
Replies: 30
by Lentamentalisk » Sun Apr 13, 2008 8:15 pm
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To JSR and all of the other epoxy lovers:
Here is some info on the health effects of Bisphenol A, a major component of epoxies and the like. Just...

Last post

Getting to far off topic now! This thread modded once .
30 Replies

6870 Views

Last post by jrrdw
Tue Apr 15, 2008 7:22 am
pressure washer handle

Last post by JDP12
Replies: 17
by JDP12 » Sun Apr 13, 2008 9:31 pm
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hey all- i'm looking for a pressure washer handle with NPT threads. All the ones i've found have really weird threads i've never heard of. anyone...

Last post

nice... good luck
17 Replies

6534 Views

Last post by JDP12
Mon Apr 14, 2008 10:21 pm
Hot Glue Piston

Last post by watto
Replies: 30
by Hydra » Tue Mar 11, 2008 3:22 am
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Ok, Im ready to make my first piston cannon, and the piston will be made from HOT GLUE!! :shock:

Anyways, in most pistons there is a screw going...

Last post

I just cut up some glue sticks and put them in half a coke can on the barbecue, seemed to work well.

Hot glue pistons are fine as long as you use...
30 Replies

8790 Views

Last post by watto
Mon Apr 14, 2008 9:52 am
Spudwiki problem

Last post by dewey-1
Replies: 17
by DYI » Sat Apr 12, 2008 4:39 pm
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Ever since I've been on the forum, there's been a tutorial on how to rig up an ignition coil with a camera flash circuit for a high voltage spark....

Last post

--
17 Replies

6375 Views

Last post by dewey-1
Sun Apr 13, 2008 8:15 pm
Unknown Type of Valve?

Last post by FordGtMan
Replies: 9
by FordGtMan » Sun Apr 13, 2008 5:21 pm

First post

I was rummaging around in my garage to search for piston sealing material a few minutes ago and i busted my toe on a plastic valve(I think). Well i...

Last post

Probably what it was from. Thanks for the help. Now on to what i should do with it... :roll:

9 Replies

2938 Views

Last post by FordGtMan
Sun Apr 13, 2008 6:06 pm
Arrow ammo

Last post by THUNDERLORD
Replies: 20
by lockmanslammin » Wed Apr 09, 2008 12:48 am
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has anyone tried using an actual arrow with a sabot as ammo?

My gun barrel is 1/2 copper, and if I take an arrow and twist it as I insert it in the...

Last post

I think it will.
That's a funny question because the other day attempted to stealthily fire a blow gun dart out a sliding glass door( little blow...
20 Replies

8209 Views

Last post by THUNDERLORD
Sun Apr 13, 2008 3:50 pm
Cloud/vortex component...

Last post by THUNDERLORD
Replies: 5
by THUNDERLORD » Fri Apr 11, 2008 7:41 pm

First post

I was at home depot, And I saw an awesome deal on a sand blaster by Husky.
It was $13 and has a removable nozzle so it's basically a blow nozzle w/ a...

Last post

Sorry about the double...here's the way I wanted to configure it:

Sure would be nice and compact and all metal, the problem is the Threaded...

5 Replies

2109 Views

Last post by THUNDERLORD
Sat Apr 12, 2008 2:44 am
Cable connected projectiles

Last post by pizlo
Replies: 21
by PVC Arsenal 17 » Thu Apr 10, 2008 8:32 pm
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Two barrels, running parallel or pointed slighty apart. Each loaded with a weighted projectile. Connecting the two projectiles is a cable of some...

Last post

Man, that's downright medieval... :)
.
I love you...
21 Replies

7555 Views

Last post by pizlo
Fri Apr 11, 2008 2:55 pm
Troubleing News

Last post by FordGtMan
Replies: 18
by jrrdw » Thu Apr 10, 2008 10:45 am
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First post

Kids making tazers out of disposable camara flashs. Your thoughts? or just vote.

Last post

What do you mean there's a parrot?

Parrots echo your voice, or repeat what you said :D
18 Replies

6688 Views

Last post by FordGtMan
Thu Apr 10, 2008 4:51 pm
Moddifying a small sprinkler valve

Last post by Blitz
Replies: 16
by ghostman01 » Wed Apr 09, 2008 1:18 am
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hey peeps i was wondering whether you can moddify one of those small sprinkler valves for pneumatic actuation and if they are able to with stand...

Last post

Page 957, item 6646K23 for the 3/4 valve.
16 Replies

3785 Views

Last post by Blitz
Thu Apr 10, 2008 2:05 am
Epoxy stop in middle of pipe?

Last post by jackssmirkingrevenge
Replies: 11
by kablooie » Tue Apr 08, 2008 8:06 pm

First post

I am making a coaxial bb gun with 1/2 copper, 3 feet long, and a 1/4 brakeline barrel. I would like to make an epoxy plug in the middle of the three...

Last post

Unless there's oily residue on the area to be glued, I don't normally wash with solvent. Even with metal parts I usually rough them up with a file...

11 Replies

3459 Views

Last post by jackssmirkingrevenge
Wed Apr 09, 2008 1:16 am

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