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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

1125849 Views

Last post by quinn whitsitt
Fri Feb 09, 2024 2:38 pm
Sketchup Model Library

Last post by mrfoo
Replies: 152
by dewey-1 » Tue Mar 24, 2009 12:12 pm
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Over the last year I have made a lot of CAD drawings for
Pneumatic Launchers.

I have imported several of them into Sketchup format.
Here is the link...

Last post

Bollocks. Dewey put them out in the hope that, and I quote

some of you can make use of these!

There's absolutely nothing wrong with using them,...
152 Replies

578822 Views

Last post by mrfoo
Mon May 20, 2024 11:17 am
Solvent Welding Course Recommended For ALL

Last post by Technician1002
Replies: 46
by sgort87 » Fri Aug 04, 2006 8:18 pm
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Originally posted by DR on the Spudtech forums:

IPEX Solvent Cements ONLINE Course can be found here:

It is recommended that you download and...

Last post

Your earlier post about just scoring the surface, has me wondering if that is why OATEY makes a brush tool that scores the inside of a fitting, and...
46 Replies

311494 Views

Last post by Technician1002
Thu Dec 02, 2010 5:04 pm

Topics

Are you SURE your post belongs here?

Last post by far_cry
Replies: 15
by PCGUY » Fri Oct 27, 2006 7:00 pm
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THIS SECTION IS FOR IF YOU WANT TO WRITE A HOW-TO FOR PEOPLE, NOT TO ASK HOW TO BUILD A CANNON!!!

I swear I want to bash some of your heads in for...

Last post

i know what you fell PCGUY
15 Replies

11485 Views

Last post by far_cry
Fri Jun 12, 2009 4:22 pm
Homemade piezoelectric pressure transducer

Last post by jimmy101
Replies: 37
by btrettel » Wed Jun 03, 2009 10:01 pm
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I've designed a circuit to correctly measure pressure as a function of time and tell you when the projectile leaves the barrel and it's muzzle...

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Tech

Any thoughts on the affect of long leads? Figuring the amp is a foot or so from the piezo element. You could use a shielded cable but that adds...
37 Replies

18177 Views

Last post by jimmy101
Fri Jun 12, 2009 10:44 am
Incredible Paper Dart

Last post by mikemurph
Replies: 42
by Insomniac » Mon Dec 18, 2006 9:03 pm
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Hi everybody, I've been browsing theses forums for some time but my Dad wouldn't let me sign up. He changed his mind yesterday though, so I am...

Last post

I have made something like this, I used an aluminum cone, and a coat hanger here's a link
42 Replies

17191 Views

Last post by mikemurph
Thu Jun 11, 2009 12:28 pm
Lathe turned pellets

Last post by Ragnarok
Replies: 62
by john bunsenburner » Thu Jun 04, 2009 2:22 pm
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Well i guess all the CNC turned rounds made me jealos. I was bored, had lots of spare copper stock(8mm) and decided to make a few pellets for my not...

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... to ensure spin is not imparted to the projectile because it would hurt accuracy.
This is rather because few rifled barrels will have the right...
62 Replies

16788 Views

Last post by Ragnarok
Wed Jun 10, 2009 10:12 pm
Scope Accuracy

Last post by Clarke
Replies: 11
by Clarke » Tue Jun 09, 2009 7:39 pm

First post

Hi all, im new to the forum and just like to say Gday.

I have recently made a 1/2 QEV .22 Pneumatic pellet gun (still being fine tuned) which im...

Last post

No this gun isnt going to shootspuds. I found at 100 psi this gun liquifies spud projectiles within 1-2 meters after leaving the barrel because its...

11 Replies

2987 Views

Last post by Clarke
Wed Jun 10, 2009 7:27 pm
Semi Plans-Need Input

Last post by Floyd
Replies: 3
by Floyd » Tue Jun 09, 2009 9:23 pm

First post

I haven't been on in a while, but with the coming of the summer break and inactivity I have been itching to make another gun.

Well I recently came...

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Yeah, im thinking along the lines of a ghetto magazine (pen tube) to start and then eventually upgrade to a replaceable one.

3 Replies

1952 Views

Last post by Floyd
Wed Jun 10, 2009 1:10 pm
Rat Patrol

Last post by jeepkahn
Replies: 2
by Solar » Wed Jun 10, 2009 3:51 am

First post

The Eclipse is being modded to work on armored vehicle and remote turrets. I am just getting ready for paintball this weekend and daydreaming. The...

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That's it... I had been dragging my feet , But i guess now I gotta install the truck bed mount for DD1... :twisted:

2 Replies

1208 Views

Last post by jeepkahn
Wed Jun 10, 2009 10:08 am
6mm Ball bearings and Australia

Last post by Carlman
Replies: 34
by Marco321 » Sat Jul 21, 2007 9:06 pm
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Hey
I planning on making a BB sniper rifle. I live in Australia and as you know we cant get bb bullets anywhere. so i looked on Mcmaster and they...

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Look for a camping store. They have them there.

5mins from me is a camping disposal store called Uptons. They sell ball bearings there. Like 100...
34 Replies

22109 Views

Last post by Carlman
Wed Jun 10, 2009 4:01 am
Mutliple Shots From Sprinkler Valve?

Last post by airheadnoob
Replies: 2
by The_Kangsta » Thu Feb 21, 2008 12:49 am

First post

Is it possible to get multiple shots out of a moded sprinkler valve?

Last post

you could try a hammer valve? at the end

2 Replies

1151 Views

Last post by airheadnoob
Wed Jun 10, 2009 3:22 am
Cd and weight question...

Last post by jeepkahn
Replies: 23
by jeepkahn » Thu Mar 26, 2009 12:02 pm
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I googled, yahooed, and searched to no avail...

Does anyone know the Cd and weight for an off the shelf blowgun dart???

I have no scales sensitive...

Last post

The weight of a 4 long .40 blowgun dart will be pretty close to 1 gram, give or take about 10%.

The CD is going to be largely defined by the cone...
23 Replies

10120 Views

Last post by jeepkahn
Tue Jun 09, 2009 4:23 pm
1/4" QEV dimentions

Last post by psycix
Replies: 7
by Dave_424 » Mon Jun 08, 2009 4:03 pm

First post

Hey guys, can you give me the dimentions of how wide a 1/4 QEV is. Just the standard silver ones

Thanks dave

P.S. I am planning to put it inside a...

Last post

As long as you have cookies, I'll be awesome for you! :D

7 Replies

1710 Views

Last post by psycix
Tue Jun 09, 2009 5:22 am
Mounting Coaxail barrel

Last post by jaythedogg
Replies: 10
by qwerty » Mon May 25, 2009 2:41 pm

First post

I'm in the middle of making my 1 1/4 coaxail pneumatic and im struggling to mount the barrel in side the chamber were the piston seals because it...

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I just used pieces of thick aluminum pipe (very thick), cut them into sections and epoxied them on in a radiation shape. Then I held the barrel and...

10 Replies

3273 Views

Last post by jaythedogg
Mon Jun 08, 2009 11:30 pm
Railgun fired!

Last post by rp181
Replies: 46
by rp181 » Sat Feb 21, 2009 3:11 pm
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First off, this is not in m project thread because i did not want to quadruple post....
Second, I accidentally did it without running the program for...

Last post

I do procrastinate, but not in these things. I couldn't do it, the railgun enclosure became available too late.

For presentation, I made up BS about...
46 Replies

15303 Views

Last post by rp181
Sat Jun 06, 2009 7:48 pm
Air-powered flintlock replica pellet gun

Last post by inonickname
Replies: 3
by Bando_Red » Fri Jan 30, 2009 1:05 am

First post

Haven't been on in a while. I got some plans together for a pretty simple gun I was thinking of. Unfortunately I'm on my new computer which doesn't...

Last post

you can use GIMP. its free and almost as good as photoshop.

Was there a need to bump this..?

3 Replies

3066 Views

Last post by inonickname
Sat Jun 06, 2009 12:00 am
Adjusting Auto Shut Off Pressure

Last post by psycix
Replies: 5
by jor2daje » Thu Jun 04, 2009 10:52 pm

First post

Sorry if this has already been discussed, but is it possible to adjust what pressure my compressor stops at, right now it cuts out at 130 and I want...

Last post

I did this with mine.
Of course your compressor is different, but it might help a bit.

5 Replies

5665 Views

Last post by psycix
Fri Jun 05, 2009 12:40 pm
Im tearing my hair out with this calculation!!!

Last post by thedeathofall
Replies: 18
by Dave_424 » Tue Jun 02, 2009 3:54 pm
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Hey guys, having a bit of a problem about working out the pressure drop in the main tank when it fills a smaller tank

Basically I am designing a...

Last post

Thank you kind sir. I think i actually understood that, at least the important stuff :D
18 Replies

5506 Views

Last post by thedeathofall
Fri Jun 05, 2009 12:58 am
back to the forum!

Last post by zeigs spud
Replies: 2
by zeigs spud » Tue Jun 02, 2009 9:52 pm

First post

hay ive been gone for about, god knows...more than a year. BUT im back! i was just wondering what was new as far as cannons go, ive worked a lil on...

Last post

uhm.. i never said nothing new has happened.. lol but k thanks! :D

2 Replies

2090 Views

Last post by zeigs spud
Wed Jun 03, 2009 9:29 pm
Air line lubricator for fueling

Last post by psycix
Replies: 2
by daccel » Wed Jun 03, 2009 9:28 am

First post

I was browsing the air compressor isle when I realized that an air line lubricator might have potential as a fueling system.

Not sure exactly how...

Last post

Could work for things like alcohol.
Great thing is that it atomizes the liquid.

It will be hard to get on the right ratio though.

2 Replies

1155 Views

Last post by psycix
Wed Jun 03, 2009 12:17 pm
capacitors

Last post by rp181
Replies: 14
by trigun » Mon Jun 01, 2009 5:54 pm

First post

I am looking to create a large ignition system.
Looking at capacitors i see that many i find are low in voltage but many have varying farad ratings....

Last post

I don't have a link, but that all came from the head engineer at EPCOS, when talking to him about a capacitor bank.

Its different using it for those...

14 Replies

4544 Views

Last post by rp181
Tue Jun 02, 2009 10:32 pm
creative block

Last post by Moonbogg
Replies: 38
by Mike_Hunt0420 » Wed May 27, 2009 9:25 pm
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I am waiting for the rest of the parts for my pneumatic to come in and i'm at a loss for what to make next. my current project is my 800psi hpa gun,...

Last post

Any progress on those designs? I have overcome one of two hurdles for the hybrid for this particular design.
38 Replies

8808 Views

Last post by Moonbogg
Tue Jun 02, 2009 7:51 pm
Picatinny Rails

Last post by jackssmirkingrevenge
Replies: 10
by dewey-1 » Mon Jun 01, 2009 12:20 pm

First post

I am making a 3D CAD model of Picatinny Rails.

I cannot locate the following dimensions:

1) Mounting holes diameter

2) Mounting holes center to...

Last post

beautiful as always :)

10 Replies

3206 Views

Last post by jackssmirkingrevenge
Tue Jun 02, 2009 12:00 am
A Concern

Last post by inonickname
Replies: 16
by Moonbogg » Thu May 28, 2009 11:02 am
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I've read a little here and there about morons hurting or killing themselves by putting gun powder in spud guns or looking down the barrel etc etc....

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It's something with a relative degree of unbanability. As said, there has to be pipes. Full stop. There has to be valves. Fuels..extremely hard to...
16 Replies

5363 Views

Last post by inonickname
Sun May 31, 2009 8:01 am
Castable Sulpho-plastic: epoxy replacement?

Last post by Biopyro

by Biopyro » Sat May 30, 2009 3:48 pm

Runs like water at 110*C, very low specific heat capacity, metallic properties (conductive) and very strong (easy to add in steel wool for even more...

0 Replies

2780 Views

Last post by Biopyro
Sat May 30, 2009 3:48 pm
How to build a 3" piston

Last post by explsvcookie257
Replies: 6
by jmccalip » Sat Apr 25, 2009 6:52 pm

First post

Materials needed:

2 1/2 PVC coupling
A couple inches of 2 1/2 PVC pipe
(two) 3 cut off wheels(substitute metal disks if you have them, or cut some...

Last post

but is hdpe heavy or really light i coukld gie you specifications and you can make me one lol

6 Replies

6970 Views

Last post by explsvcookie257
Sat May 30, 2009 1:04 am
sch 40 but not high pressure

Last post by jimmy101
Replies: 6
by dukesbb37 » Wed May 27, 2009 11:04 pm

First post

i went to my local home depot today to make my first spud cannon... and i was planning on a 4 expansion chamber with a 2 inch barrel. The problem...

Last post

I have had too many failures of PVC simply because it has some properties of glass. It cracks and shatters. If you are stuck using cell core DWV, it...

6 Replies

3365 Views

Last post by jimmy101
Thu May 28, 2009 2:43 pm

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