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

1315503 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

81127 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

983829 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

274953 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...

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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

284666 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

391073 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

5338058 Views

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

Topics

3D printing darts

Last post by dart guy
Replies: 6
by sharpshooter » Wed Mar 18, 2015 6:46 pm

First post

I promised myself I'd get into cannons again once I could produce precision ammo. Well we got a 3D printer at work (Form 1+) and finally got to...

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For the smaller .177 darts a little sand paper and maybe a cotton wad would help.

6 Replies

13755 Views

Last post by dart guy
Sat Apr 25, 2015 2:32 pm
machined APFSDS projectiles

Last post by dart guy
Replies: 237
by jackssmirkingrevenge » Wed Nov 09, 2011 1:00 pm
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First post

I've been having a play with milled collars to turn small masonry nails into stable darts without any modification of the nail itself. In 6mm...

Last post

I just thought about this, and it may seem a bit strange, but what about a fine powder/liquid retainer? Like have it pressed in between the fins to...
237 Replies

185831 Views

Last post by dart guy
Tue Apr 07, 2015 8:26 pm
Tube for Barrel

Last post by vng21092
Replies: 1
by HelloWorld » Tue Jan 06, 2015 2:18 pm

First post

Hi,
Im looking for a tube With an id of 4,5mm (.177).
Im from Germany. Do You know of any places to buy from?

Last post

I don't know how Amazon deals with international shipping but I get them here:

On the side where it says Inner Diameter click on See More and on...

1 Replies

3743 Views

Last post by vng21092
Wed Jan 07, 2015 8:17 am
help, safe pressures

Last post by jonpo
Replies: 7
by jonpo » Tue Dec 02, 2014 7:55 am

First post

hey all, very new to the crafting of pcp airguns
abit of a noob question (I know), but how effective would galvanised steel pipe be as an air...

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hey guys, quick question, do you know of any compact 1/4 inch high(ish) pressure regulators I can find? or of any ways to bulild a homemade one?

7 Replies

7822 Views

Last post by jonpo
Sun Dec 21, 2014 6:44 am
Nipple with hex center?

Last post by DYI
Replies: 4
by Technician Fry » Thu Dec 18, 2014 7:54 am

First post

Suppose I have a steel pipe nipple with hex fittings on each end:

I can tighten this section easily by screwing the hex fittings inwards towards...

Last post

I didn't know about the stress caused by reusing threaded parts - thanks for the heads-up.

You may be oversimplifying something here - not quite...

4 Replies

5869 Views

Last post by DYI
Sat Dec 20, 2014 9:53 am
New Type of Coil Driver? (Hall Effect Inside)

Last post by mark.f
Replies: 2
by mark.f » Tue Dec 02, 2014 7:56 am

First post

So, this is just a little thing I thought up for driving an ignition coil efficiently and at maximum power (an optimum frequency).

Rather than doing...

Last post

Indeed, I did consider a driver which measured voltage across the inductor (not the same thing, and I am glad you posted that link as it is a lot...

2 Replies

4590 Views

Last post by mark.f
Thu Dec 04, 2014 7:26 am
Commercial shotgun wads

Last post by Gippeto
Replies: 5
by dart guy » Mon Oct 27, 2014 5:29 pm

First post

I reload 12 gauge shells , I and I wonder how would I make one of those for any caliber I want, right now I'm in the middle of designing a break...

Last post

... if you wanna see just ask though.

I'm asking....can't recall actually seeing anything you've built or tried to build yet, so let's see it....

5 Replies

17843 Views

Last post by Gippeto
Sun Nov 16, 2014 2:08 am
Cheap 2inch footballs

Last post by Brad1895

by Brad1895 » Tue Sep 23, 2014 11:37 am

I have no clue if this was discovered before, and I'll gladly remove it if it has. I found a nerf pocket vortex clone on evike for $2.50 a piece They...

0 Replies

7461 Views

Last post by Brad1895
Tue Sep 23, 2014 11:37 am
Steel parts and fittings

Last post by Juggernaut12121
Replies: 5
by Juggernaut12121 » Sun Sep 14, 2014 4:35 pm

First post

Does anyone know where I can find some quality galvanized fittings online? I've tried a number of hardware stores around my area but they seem to...

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Alright, stupid question but with black iron is there any sort of risk of corrosion/rust? I thought that I could just put a clear coat on the outside...

5 Replies

5302 Views

Last post by Juggernaut12121
Fri Sep 19, 2014 7:03 pm
Rocket assisted projectile

Last post by dart guy
Replies: 4
by thunderskunk » Sun Apr 06, 2014 11:30 am

First post

oops, this post wasn't allowed. My bad.

Last post

Like Jsr said, that CO2 could be used, but if you really wanted a combustion rocket it would have to be a rocket that slides onto the barrel( you...

4 Replies

5545 Views

Last post by dart guy
Thu Jul 24, 2014 5:56 pm
a new type of wadding?

Last post by dart guy
Replies: 11
by rathunter » Wed May 28, 2014 7:59 pm

First post

So I was messing around with lead wheel weights and potato guns. Not a good combo, my gun (1.5 bore) can put a lead wheel weight through 1/2 inch of...

Last post

I have designed an almost shot gun like wad for a 2 bore, I took a paper towel Rolland 4 peices of corrugated cardboard and I cut a one inch cylinder...

11 Replies

11157 Views

Last post by dart guy
Wed Jul 23, 2014 10:24 pm
DWV PVC Fittings

Last post by Technician1002
Replies: 3
by Juggernaut12121 » Mon Jun 16, 2014 6:40 pm

First post

Alright so I went to Menards to get some ideas about something I want to build but I noticed the had no schedule 40 in 4 fittings, just DWV; and I...

Last post

I tested this and found PVC is brittle and the shallow sockets for DWV tend to crack loose, break, or fail in interesting ways, even after passing...

3 Replies

5352 Views

Last post by Technician1002
Tue Jun 17, 2014 4:19 pm
My project...

Last post by bravootome
Replies: 2
by octavioaugusto » Mon Apr 28, 2014 2:20 pm

First post

Hello Everybody

First of all, I am a young man (77 years old...) and after my retirement, I am a dedicate scratch man...first modelling Half Hulls...

Last post

Please, I need first your aid like one answer if is it possible, and if yes a simple plane or blue print to begin my project because I have all time...

2 Replies

4748 Views

Last post by bravootome
Wed Apr 30, 2014 11:41 am
Pressure Equation Confusion

Last post by grumpyoldman
Replies: 9
by grumpyoldman » Tue Apr 22, 2014 6:12 am

First post

Hey guys. I'm a bit confused on how much pressure I can safely use with the chamber I've made.

I've seen some members here use the calculator at...

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Thanks Fnord. You're a virtual fountain of knowledge. Now I can figure out what rods to use. :D

Before threading carbon steel rods, be aware it...

9 Replies

8607 Views

Last post by grumpyoldman
Tue Apr 22, 2014 1:20 pm
HP pump

Last post by jackssmirkingrevenge
Replies: 7
by fenrir » Sun Mar 23, 2014 5:13 pm

First post

Anyone familiar with this? really expensive, but 40000 psi holy s*** :shock:

Last post

Just a different approach... but meanwhile I am working on a coaxial with large valve for 300psi, epoxy and pipe construction (my lathe is snowed in)...

7 Replies

7249 Views

Last post by jackssmirkingrevenge
Tue Apr 01, 2014 7:23 pm
sprinkler valve help

Last post by Trauts
Replies: 9
by Trauts » Thu Feb 27, 2014 11:52 am

First post

I am in the middle of making a 2 piston valve gb cannon. Everything looking good but when I put pressure in the cannon the sprinkler valve lets the...

Last post

I double checked that it was totally cleaned up, but maybe running air through it cleaned it out. It just seemed like it just didn't want to equalize...

9 Replies

6253 Views

Last post by Trauts
Sun Mar 02, 2014 11:07 am
1/2" copper barrel ammo

Last post by jackssmirkingrevenge
Replies: 4
by tigerblues28 » Sat Feb 22, 2014 8:59 pm

First post

Hey guys!

I starting a new build, a simple copper coaxial pneumatic, and for the barrel I will be using 1/2 copper. I was wondering what's your...

Last post

Somewhat

:mrgreen:

4 Replies

5411 Views

Last post by jackssmirkingrevenge
Sun Feb 23, 2014 1:35 pm
REAL Flechettes

Last post by jackssmirkingrevenge
Replies: 10
by sagthegreat » Sun Jan 26, 2014 9:06 pm

First post

So I got real flechettes on ebay. They shoot great out of my .177 bore airgun, and the nice thing is they have the best penetration compared to any...

Last post

Man, you just don't forget ANYTHING do you?? :D

I wish I could.

10 Replies

8317 Views

Last post by jackssmirkingrevenge
Thu Feb 06, 2014 4:53 am
Using drill bits as "rifled" projectiles

Last post by jackssmirkingrevenge
Replies: 9
by sagthegreat » Tue Jan 21, 2014 4:30 pm

First post

I tested using steel drill bits as projectiles out of my smoothbore .177 coaxial gun, and the grooves in the bit acted as rifling and enabled the bit...

Last post

I used this at 400 psi with an airsoft BB as a sabot.

9 Replies

9193 Views

Last post by jackssmirkingrevenge
Wed Jan 22, 2014 2:48 pm
Hybridable golf ball barrels

Last post by Gun Freak
Replies: 3
by noname » Sun Jan 12, 2014 11:03 pm

First post

I think I've found a great, accessible material for golf ball barrels! I took a ball to the hardware store to try to fit it in some pipe, and came...

Last post

I love being able to source off the shelf stuff intended for real world use for our hobby whenever possible

Likewise! :D

I was gonna ask what...

3 Replies

5424 Views

Last post by Gun Freak
Tue Jan 14, 2014 4:32 pm
co2 caplets

Last post by jackssmirkingrevenge
Replies: 1
by Bando_Red » Mon Jan 06, 2014 12:40 am

First post

was just looking at em and wondered if anyone ever bothered shooting them. Decent shape and light but big, could always fill em with something for...

Last post

They fit nicely in a 3/4 barrel.

Depends how fast you throw them really.

Slowly, not very impressive:

Fast, well...

:D

1 Replies

5659 Views

Last post by jackssmirkingrevenge
Mon Jan 06, 2014 12:56 am
Air conditioner compressor

Last post by POLAND_SPUD
Replies: 19
by fenrir » Sat Dec 14, 2013 3:38 pm
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Today I had nothing to do, so I wandered into my basement and found a very old looking air conditioner, neatly tucked away in the corner. I'm sure...

Last post

So does it work ?? it should assuming you properly identified windings

Ohh and it's obvious, but I'll write it anyway... make sure you put all the...
19 Replies

17644 Views

Last post by POLAND_SPUD
Sun Jan 05, 2014 12:58 am
Anybody in the UK help me with parts for a hybrid.

Last post by vxrtol
Replies: 10
by vxrtol » Sun Jul 28, 2013 4:17 pm

First post

Hello to everybody at Spudfiles from the Midlands, England.

I have some questions regarding a hybrid I'm planning with my girlfriend. I've built 2...

Last post

Picked this up yesterday

10 Replies

7923 Views

Last post by vxrtol
Fri Jan 03, 2014 7:49 pm
Metal Epoxy Putty, and Ammo

Last post by Gun Freak
Replies: 1
by sagthegreat » Fri Jan 03, 2014 12:22 pm

First post

I am making a coaxial, would metal epoxy putty work to attach the barrel to the end cap?

It has a 900psi tensile strength, has anyone used this...

Last post

It might hold it but epoxy putty doesn't have great adhesive qualities, more for strength. Plus it wouldn't perfectly fill the gap because it's not a...

1 Replies

3823 Views

Last post by Gun Freak
Fri Jan 03, 2014 7:27 pm
Are these basically the same as diablo pellets?

Last post by jackssmirkingrevenge
Replies: 13
by Gun Freak » Fri Dec 27, 2013 6:54 pm

First post

Hey guys, I'm making a high pressure copper coax that will shoot .22 pellets. For a barrel, I am planning on 1/4 OD K&S brass tubing with a .014...

Last post

I will never cast epoxy without sealing the mould ever again :P

Words are just that my friend ;)

13 Replies

9529 Views

Last post by jackssmirkingrevenge
Fri Jan 03, 2014 1:35 am

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