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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

1091888 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

69647 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

887486 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

224468 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

244850 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

346542 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

5228039 Views

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

Topics

Cone Drag

Last post by jackssmirkingrevenge
Replies: 11
by skyjive » Mon Sep 01, 2008 11:42 am

First post

Is there any way of theoretically determining the drag coefficient of a cone with the airflow directed from the point to the base, 1/2 across at the...

Last post

nice try...but they can't be polish.... there are no all orange road cones in poland.. they have to have 2 white stripes :D

It was an international...

11 Replies

4455 Views

Last post by jackssmirkingrevenge
Thu Sep 04, 2008 2:35 pm
high high high pressure commpressor

Last post by psycix
Replies: 11
by Sticky_Tape » Thu Aug 28, 2008 1:52 pm

First post

Well I was surfin the net today and I found somthing interesting but damn exspencive.

Last post

For that money, you could build your own.
I may do that someday.

11 Replies

8219 Views

Last post by psycix
Wed Sep 03, 2008 10:22 am
Bondo fiber glass resin + aluminum

Last post by jackssmirkingrevenge
Replies: 8
by Sticky_Tape » Tue Sep 02, 2008 3:35 pm

First post

It seems that when I try to make casting from cpvc to aluminum the aluminum barrel slips out of the casting I roughened up the barrel for casting but...

Last post

I've epoxied aluminium tubing before successfully, I doubt thermal expansion is a real factor here.

8 Replies

3028 Views

Last post by jackssmirkingrevenge
Wed Sep 03, 2008 12:07 am
foam piston?

Last post by ALIHISGREAT
Replies: 2
by SilentCyan » Tue Sep 02, 2008 2:19 pm

First post

would it be possible to construct a piston entirely out of closed cell foam? has anyone tried this out before and if so did it work out okay?

Last post

has used foam on the inside of one of his pistons (i think) then casted epoxy around it (well as it invloves epoxy he probably has :D )

2 Replies

1320 Views

Last post by ALIHISGREAT
Tue Sep 02, 2008 3:22 pm
What is ur favorite ammo for a 1" barrel?

Last post by MrCrowley
Replies: 5
by Dussalater » Tue Sep 02, 2008 9:00 am

First post

Need some ideas for my gun

Last post

We don't need a thread for every barrel diameter. Just use the 2 one or add to the Ammo Ideas sticky in the construction/ammo section.

5 Replies

2210 Views

Last post by MrCrowley
Tue Sep 02, 2008 2:34 pm
Why does Araldite epoxy take so long to dry?

Last post by Ragnarok
Replies: 3
by limbeh » Mon Sep 01, 2008 6:12 am

First post

This is a question that I asked jackssmirkingrevenge not too long ago. With his permission, I'm putting it up so that anyone with the same problem...

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I've always found Araldite a bit disappointing in my views, not as strong as claimed, always a bit squidgy after use. Although I'm currently...

3 Replies

9459 Views

Last post by Ragnarok
Mon Sep 01, 2008 9:25 am
buying pop offs

Last post by Mitchza89
Replies: 6
by Sticky_Tape » Mon Aug 25, 2008 3:15 pm

First post

I need to know where to get pop offs from people who live in canada. There are a number of different hardware stores including Canadien Tire, Home...

Last post

Well guys, I do believe I've achieved semi/fully auto! I must upload the vid soon.

6 Replies

2140 Views

Last post by Mitchza89
Tue Aug 26, 2008 12:21 am
great 1/2" Ammo

Last post by daxspudder
Replies: 7
by daxspudder » Mon Aug 25, 2008 6:17 pm

First post

At the dollar store the other day I found a bag of double bubble gum balls, which also just happen to fit PERFECTLY in my 1/2 Super-mod pump...

Last post

AAs ussually get thrown out, and if not they tumble alot when fired... nerf darts are great, i had a pic on one of my threads, but i guess the huge...

7 Replies

2305 Views

Last post by daxspudder
Mon Aug 25, 2008 10:13 pm
fibre glassing pop bottles

Last post by jimmy101
Replies: 6
by Sticky_Tape » Mon Aug 25, 2008 9:13 am

First post

Do you think that fiber glassing liter pop bottles will let them reach 400psi? I remember a water rocket that was made to reach high altitude 1000...

Last post

I don't see any advantage to starting with the soda bottle. Might as well start with steel.

The tricky part with the soda bottle would be, even if...

6 Replies

3891 Views

Last post by jimmy101
Mon Aug 25, 2008 2:08 pm
wear do you get ball bearings

Last post by jimmy101
Replies: 18
by mach 10 » Sat Aug 23, 2008 4:21 pm
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ball bearings seam like good ammo and I was just wondering ware you get them?

Last post

I got .50 lead balls, but I never aim at the environment ... :D
ya, but we all know how good a shot you are. :P
18 Replies

11964 Views

Last post by jimmy101
Mon Aug 25, 2008 1:56 pm
where can i find those big hose clamps

Last post by stevenarroyo
Replies: 12
by stevenarroyo » Sun Aug 24, 2008 10:02 am

First post

i've ben looking around in different stores for the really big hose clamps and i have very in my life seen thing.

i well like to buy some so i can...

Last post

alright thanks

i have seen something like hose clamps but a plasic

me and my dad call them zip ties or cable ties you think that well work??...

12 Replies

2666 Views

Last post by stevenarroyo
Sun Aug 24, 2008 11:33 am
copper welding fittings

Last post by SpudFarm
Replies: 5
by SpudFarm » Sat Aug 23, 2008 11:18 am

First post

is there anything that is called that?

Last post

hmm, it is just that a copper weld looks so neat!

5 Replies

1648 Views

Last post by SpudFarm
Sun Aug 24, 2008 10:35 am
Can acrylic glued to PVC withstand pressure?

Last post by limbeh
Replies: 9
by limbeh » Fri Aug 22, 2008 2:24 am

First post

Hi,

I'm planning to buy 6mm thick clear acrylic sheet, cut it into the required shapes, and glue it to some PVC pipe (5.5mm thick JIS VP- can...

Last post

As expected, the very mention of epoxy brought jackssmirkingrevenge out - precisely who I'm looking for.

Jacksmirkingrevenge, from your experience,...

9 Replies

2680 Views

Last post by limbeh
Sat Aug 23, 2008 9:09 am
can you glue pvc to cpvc?

Last post by SpudFarm
Replies: 13
by SilentCyan » Thu Aug 21, 2008 1:51 pm

First post

a friend of mine thought that since the two have slightly different chemical makeups that it wouldn't be safe to glue them together. i'm pretty sure...

Last post

here is the end of the story:

you use epoxy to glue it tougether then you set in a few locking screws with epoxy on to seal.

13 Replies

32249 Views

Last post by SpudFarm
Fri Aug 22, 2008 11:52 am
Steel nipple rating

Last post by frankrede
Replies: 8
by iisthemuffin » Thu Aug 21, 2008 12:11 pm

First post

At ace they have steel nipples that are about 2 inch diameter by 1 foot. Its about 6 dollars for a piece like this. Im just curious about using it as...

Last post

i assume that the welds are usually higher strength than the base metal

steel becomes brittle after welding, i welder to steel pieces tougether...

8 Replies

2521 Views

Last post by frankrede
Thu Aug 21, 2008 11:38 pm
Oh My Gosh I Have to much PVC for me

Last post by SEAKING9006
Replies: 12
by 808AirsoftGunner » Wed Aug 20, 2008 3:41 am

First post

i got about 18' left in my yard.

wandering how much pvc i wanted,(if u dont want to read go to the bottom sentences ) well ill tell u my story. ok...

Last post

Here's another idea; LONG-BARREL HOWITZER.

Go for distance, buddy. I've always wanted to do one with soda cans. Unfortunately, I lack both 2.5...

12 Replies

3999 Views

Last post by SEAKING9006
Thu Aug 21, 2008 11:42 am
90mm 10 bar pipe

Last post by psycix
Replies: 23
by MaxuS the 2nd » Sat Aug 16, 2008 6:43 am
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Not sure if anyone apart from people from the Uk will know, but does anybody have any ideas of what will fit in a length of 10bar rated 90mm pipe....

Last post

What the hell?!
Was that....
Did just...?
....
Oh no!
The spambots have breached our defenses!
Raise the alarm!
23 Replies

5655 Views

Last post by psycix
Mon Aug 18, 2008 3:31 pm
Does silicone sealant work with PVC?

Last post by CasinoVanart
Replies: 5
by limbeh » Sun Aug 17, 2008 4:12 am

First post

Hi,

Will silicone sealant stick to clear PVC sheet?

No, I'm not using it to glue PVC together, neither is the setup going anything higher than 2...

Last post

The similar material i used it on was Acrylic!
May the force be with you.

It does peel from Acrylic very easy, i recommend marring the surface.

5 Replies

14654 Views

Last post by CasinoVanart
Sun Aug 17, 2008 5:15 am
Self Rifling Ammo

Last post by CasinoVanart
Replies: 8
by CasinoVanart » Tue Aug 12, 2008 4:29 am

First post

After a thought in another post i pondered if an actual singular round could be used as a self rifling slug . Hence this thread.

My first question...

Last post

can you try to fire a long soft tight fitting (not penis :D ) projectile on something soft (cardboard) from some range to look if it goes straight?...

8 Replies

2182 Views

Last post by CasinoVanart
Tue Aug 12, 2008 6:25 pm
Cast Rubber Pistons?

Last post by Darkside 6ix
Replies: 9
by Kobl » Fri Aug 08, 2008 9:17 pm

First post

I just order some 1 rubber rod from McMaster thinking it would be perfectly straight and smooth. Sadly, my hopes were in vain.

I was wondering if...

Last post

Well, you can melt anything.

HAHA I love your attitude. :twisted: but your actually right.

BTW pics would help if you have the rod yet.

9 Replies

4178 Views

Last post by Darkside 6ix
Tue Aug 12, 2008 4:03 pm
marshmallows...

Last post by rp181
Replies: 14
by daxspudder » Wed Aug 06, 2008 3:58 pm

First post

OMG, I just discovered marshmallows fit perfectly in a 1 barrel... just shot one through 1/2 plywood @120psi...

I never thought marshmallows could...

Last post

how odd... just as i saw this thread, i was eating a marshmellow..... off to try it =)

14 Replies

4141 Views

Last post by rp181
Mon Aug 11, 2008 4:05 pm
3-way ball valves, 1/4 NPT

Last post by Leonard
Replies: 5
by Leonard » Sat Aug 09, 2008 3:51 pm

First post

I am looking for those desperatly. Cant find any in homedepot or any similar store around here (Canada) and online, they all seem incredibly...

Last post

I would need it for very high pressure (500 PSI) but im also considering this idea (shameless publicity for another thread) :

5 Replies

2196 Views

Last post by Leonard
Sun Aug 10, 2008 4:11 pm
Buying Sch 120 PVC *Success!*

Last post by starman
Replies: 19
by Hailfire753 » Sun Aug 03, 2008 6:44 pm
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First post

Where is the best place that I could get 3/4 sch 120 PVC, but NOT ONLINE?
I don't have credit cards, ect., only hard cash.

I do have a place called...

Last post

For identical amount of air, high pressure/low volume out-performs high volume/low pressure everytime.
19 Replies

8799 Views

Last post by starman
Sat Aug 09, 2008 11:36 am
Chamber and welding questions

Last post by rp181
Replies: 20
by rp181 » Wed Aug 06, 2008 8:58 pm
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For a ETG i am making, i plan on making the chamber out of 1 1/4in steel bar stock, borerd out to 3/4in. In side that, i was going to weld a 3/4in...

Last post

my budget is low, all my money will be burned on capacitors. I was only going to make the chamber 6in long

EDIT: looked at mcmaster, that plus...
20 Replies

4322 Views

Last post by rp181
Fri Aug 08, 2008 10:43 pm
Found a little digital PSI gauge

Last post by Necrosis
Replies: 13
by DeathBlade » Tue Aug 05, 2008 10:05 am

First post

I was out at harbor freight and saw they have this little digital PSI/flow gauge for about $15, its attached to a small regulator I was looking at it...

Last post

The gauge is digital.. so you could try to use it for hybrid fueling.

13 Replies

4092 Views

Last post by Necrosis
Thu Aug 07, 2008 3:21 am

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