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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

635463 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

49629 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

731493 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

141390 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

172508 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

260796 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

5099072 Views

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

Topics

NSF-61

Last post by frankrede
Replies: 2
by frankrede » Wed Aug 06, 2008 11:27 pm

First post

On mcmaster, All of the fittings I see are labeled as NSF-61, is that the same as NSF-PW?
I hate to be spoonfed, but I need to know.

Last post

cool beans

2 Replies

1257 Views

Last post by frankrede
Wed Aug 06, 2008 11:48 pm
1/2 in ammo

Last post by MrCrowley
Replies: 5
by killroy5238 » Tue Aug 05, 2008 11:28 pm

First post

i am a nood to pneumatic guns and i want to know wat would b a good ammunation for my half inch barrel

Last post

i am a nood to pneumatic guns and i want to know wat would b a good ammunation for my half inch barrel
Dude, there was a sticky in this section and...

5 Replies

2126 Views

Last post by MrCrowley
Tue Aug 05, 2008 11:50 pm
angle of points

Last post by SpudFarm
Replies: 37
by SpudFarm » Sun Aug 03, 2008 5:54 pm
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as i think some of you know i use the time until i get my union to make multiple darts and slugs for my hybrid.

and today i finally messed my way to...

Last post

just to up my odds i will go to the local machine shop and ask for the hardest 1cm rod they have.

and as said i will also get a center punch and try.
37 Replies

9011 Views

Last post by SpudFarm
Tue Aug 05, 2008 7:24 pm
QEVS

Last post by Maniac
Replies: 15
by Maniac » Sun Aug 03, 2008 3:22 pm
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Im about to go to the fastenal store down the road and get this
but according to to the fastenal website, the qev has NPTF threads will these...

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I wouldn't really go there to get pvc but more like specialty components and metal pipe. Even if you don't have one in your town they seem to be just...
15 Replies

4987 Views

Last post by Maniac
Mon Aug 04, 2008 6:47 pm
Tough rubber for non serviceable piston

Last post by Darkside 6ix
Replies: 16
by Sticky_Tape » Sat Aug 02, 2008 1:42 pm
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I need to know where to get really tough rubber that will still seal on a barrel (aka soft and strong) for a secret project (makes freaky background...

Last post

So the back of your barrel is a razor blade? Shit man, what type of pipe are you using...or is it even pipe :twisted:
16 Replies

4488 Views

Last post by Darkside 6ix
Sat Aug 02, 2008 11:51 pm
Paintballs

Last post by Mr.Sandman
Replies: 32
by ShowNoMercy » Mon Apr 23, 2007 8:48 am
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Does anyone know the speed or pressure at which a regular paintball will fail?

Last post

what size and brand also how old are they?
32 Replies

10502 Views

Last post by Mr.Sandman
Sat Aug 02, 2008 10:43 pm
McMaster 1/4" QEV safe for high pressure?

Last post by frankrede
Replies: 17
by Kobl » Thu Jul 31, 2008 11:30 am
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Is a McMaster (american) QEV safe to use at repeated rapid de and re pressurization of the chamber to 300 psi?

Also, is it safe to use CO2 with this...

Last post

On the ones with flexible pistons, could one perhaps reinforce it?
17 Replies

5767 Views

Last post by frankrede
Fri Aug 01, 2008 1:07 am
Banjo Coupler

Last post by Maniac
Replies: 3
by ralphd » Thu Jul 31, 2008 9:42 pm

First post

Has anyone successfully used one of these fittings?

I am concerned about the pressure rating. I tried to contact the gentleman in the picture but...

Last post

The guys name is boogieman and has been unactive for a long period of time now. Try you local tractor supply for camlocks.

3 Replies

1673 Views

Last post by Maniac
Thu Jul 31, 2008 9:57 pm
Sprinkler valve help!!!

Last post by stevenarroyo
Replies: 3
by zeigs spud » Fri Sep 22, 2006 2:03 pm

First post

Can i only use orbit water master sprinkler valves for my cannon or can i use other brands as well? if so please list the brands and model if you can.

Last post

i don't know to much about that but i do know that alot of people use the orbit 3/4 inch sprinkler valves. i use the 3/4 inch 1. i think people use...

3 Replies

1804 Views

Last post by stevenarroyo
Wed Jul 30, 2008 8:19 pm
Bullet Casting

Last post by SpudFarm
Replies: 4
by MaxuS the 2nd » Sun Jul 27, 2008 5:08 pm

First post

This is a website really only for Uk folk.

Has equipment such as lead melters and bullest casting at good prices.
Plus the cool little pair of...

Last post

gippeto: when i make lead bullets for my hybrid i never heat the mold and the lead is almost red hot. when it cures it is gross and like a map with...

4 Replies

1877 Views

Last post by SpudFarm
Mon Jul 28, 2008 5:09 am
Cast red brass smoothness

Last post by Kobl
Replies: 20
by Kobl » Fri Jul 25, 2008 2:11 pm
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I'm ordering some brass nipples off McMaster for my newest cannon and I need to know whether or not cast red brass nipples are smooth on the inside....

Last post

Thanks.
20 Replies

5308 Views

Last post by Kobl
Sun Jul 27, 2008 4:10 pm
a bottle of glass for combustion chambe ? good or not

Last post by microman171
Replies: 37
by drunkii » Fri Jul 18, 2008 8:43 am
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is a bottle of glass ( winebottle or something ) good for a combustion chamber?
wil it be okey or wil ik explode? xD

Last post

Watch your words!
Okay, glass will shatter and penetrate your vital organs if you use it as a pressure chamber BUT...
what happens to PVC when it...
37 Replies

10626 Views

Last post by microman171
Sun Jul 27, 2008 2:14 pm
soda cans...

Last post by biged
Replies: 12
by FishBoy » Fri Jul 25, 2008 4:37 pm

First post

ok, I was wondering what you can use to make a soda can barrel, my friend ordered a tennis ball barrel from launchpotatoes.com (grey electrical sched...

Last post

Technically the 2-3/4 tail pipe is tubing, since it is measured from the outside diameter.

You can also get the heavy walled 2-3/4 inch tubing from...

12 Replies

6969 Views

Last post by biged
Sun Jul 27, 2008 5:31 am
Plastics that liquify

Last post by Hotwired
Replies: 10
by iisthemuffin » Sat Jul 26, 2008 9:28 pm

First post

Im trying to make a piston and i dont have any hot glue or epoxy right now and no gas to go get either. What types of plastics will liquify so i can...

Last post

Also known as Polymorph but either way it's polycaprolactone plastic

The grip on my cannon's made of it.

If you can find a non-plastic mould to...

10 Replies

4774 Views

Last post by Hotwired
Sun Jul 27, 2008 2:01 am
3/4" cardboard sleeve missle

Last post by Mr.Sandman
Replies: 10
by FishBoy » Thu Jul 24, 2008 12:05 pm

First post

hey, first off I wasn't sure what to call this, and I don't know if this is the right place for it.

Anyway, I had this carboard tube laying around...

Last post

yeah they are pretty powerful on combustions but ive never tried this on a pneumatic

10 Replies

2505 Views

Last post by Mr.Sandman
Thu Jul 24, 2008 9:01 pm
eMachineshop

Last post by frogy
Replies: 20
by starman » Mon Jul 21, 2008 11:07 pm
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I was watching the Science channel a few minutes ago and they pitched these guys... eMachineshop

You download a design tool, design anything you...

Last post

It would be cool if they didn't want a $150 base for a part\prototype... You have to order 100 parts to get a decent price...

I'm lathing some...
20 Replies

9825 Views

Last post by frogy
Tue Jul 22, 2008 2:42 pm
Barrel question

Last post by psycix
Replies: 9
by jon_89 » Sat Jul 19, 2008 4:04 pm

First post

I want an 8 foot barrel but I want it in two 4 foot sections. What is the best way to attach them in the middle? I was thinking a coupling but wont...

Last post

If the ID of a threaded fitting or cam lock is not the same as your barrel, you could also use a larger one and shove the barrel trough it co-axial...

9 Replies

2556 Views

Last post by psycix
Sun Jul 20, 2008 5:20 am
lube on piston molds

Last post by VH_man
Replies: 13
by Sticky_Tape » Thu Jul 17, 2008 2:08 pm

First post

I need to know what typr of lube you can use on piston molds for a plunger on my pump I tried to use wd40 on a small piece of 1/2 copper and poured...

Last post

yea, BTW sillicone lube does not work for moulding pistons.

it dissolves into the epoxy, weakening it and making kind of hard to remove.

stick with...

13 Replies

2831 Views

Last post by VH_man
Sat Jul 19, 2008 4:45 pm
Steel ties

Last post by TurboSuper
Replies: 12
by magnum9987 » Wed Jul 16, 2008 7:11 pm

First post

I have some steel ties, and I plan to use them as ammo but I have some problems.
1) They are not .50 call like i want
2) THey are too long
3) They...

Last post

I bought a diamond blade for my angle grinder for $13, the high value of diamonds is completely made-up.

But really, you wouldn't use diamonds to...

12 Replies

4685 Views

Last post by TurboSuper
Thu Jul 17, 2008 2:08 pm
pvc chemical resitance question

Last post by THUNDERLORD
Replies: 19
by singularity » Mon Jul 14, 2008 7:46 pm
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now lets just say i wanted to store gasoline in pvc under pressure... how bad of an idea would that be?

the pvc is 3 and caped on both ends with a...

Last post

now lets just say i wanted to store gasoline in pvc under pressure... how bad of an idea would that be?...

From a legal point, Bad. My friend at...
19 Replies

5712 Views

Last post by THUNDERLORD
Thu Jul 17, 2008 1:02 pm
liquid hardener bottle

Last post by psycix
Replies: 3
by Sticky_Tape » Thu Jul 17, 2008 9:48 am

First post

I am making a plunger for a shock pump and I boght som liquid hardener and I don't want to screw this thing up when you screw the top off of the...

Last post

Adding a pic would certainly help.
If you want to get it out, you'll probably have to make an hole.

3 Replies

1034 Views

Last post by psycix
Thu Jul 17, 2008 11:53 am
cutting copper lenthwise

Last post by frankrede
Replies: 11
by Sticky_Tape » Tue Jul 15, 2008 4:40 pm

First post

How do you do this I have always wondered.

Last post

A die grinder would work even better

11 Replies

2890 Views

Last post by frankrede
Wed Jul 16, 2008 2:19 pm
Strength of Galvanized Fittings?

Last post by auxiliary
Replies: 4
by auxiliary » Sun Jul 13, 2008 11:50 am

First post

When I made a trip to the local Lowe's, I looked into their heating aisle and found galvanized fittings like this:

What I saw on the box that...

Last post

Thanks a lot guys! That saves me a lot of trouble because those galvanized fittings are perfect for my project. I will be using 3/4 and 2 size.

4 Replies

1641 Views

Last post by auxiliary
Sun Jul 13, 2008 4:17 pm
Taser Rounds

Last post by Hailfire753
Replies: 13
by xboxteen01 » Thu Jul 10, 2008 8:17 pm

First post

Found this on Hackaday.com

Last post

Dang, I had the same idea several months back. The video was laughable though, and lethal ? WTF?

13 Replies

3850 Views

Last post by Hailfire753
Sun Jul 13, 2008 10:02 am
nsf-pw and nsf-dwv pvc

Last post by jonnyboy
Replies: 15
by Sean » Thu Jul 10, 2008 10:53 pm
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I posted this in the combustion section but now realized this is for the construction materials, sorry for that.

I made a combustion spud gun about...

Last post

But if DWV sometimes is pressure rated, how come some people have still had it blow at low pressures?

Most dwv you buy is sch40 but some places...
15 Replies

25759 Views

Last post by jonnyboy
Sat Jul 12, 2008 4:08 pm

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