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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

651550 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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First post

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

384684 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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First post

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

200462 Views

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

Topics

My Homemade PCP Gun

Last post by audriusize
Replies: 14
by audriusize » Sat Nov 07, 2009 2:23 pm

First post

Homemade pcp airgun whit pressure regulator.HOW IT WORKS?

Last post

I speak lithuanish,russish,and english(not good).The stock -red hardwood

14 Replies

10477 Views

Last post by audriusize
Mon Nov 09, 2009 1:48 am
hybrid catapault/air

Last post by jackssmirkingrevenge
Replies: 11
by gunzz » Sat May 30, 2009 7:41 am

First post

wouldnt it be awesome! a large catapault could be powered by a piston!
you could still even have the counterweight with a double acting!

a clippard...

Last post

I was think out loud that instead of using weight use an air powered piston of sorts?

That's the basic idea. With some basic calculations you can...

11 Replies

3842 Views

Last post by jackssmirkingrevenge
Sun Nov 08, 2009 11:05 pm
PVC pipe selection

Last post by CS
Replies: 2
by MrDEB » Sun Nov 08, 2009 1:49 pm

First post

I see alot of reference to usng sch 40 pvc pipe for air cannons etc.
Yes sch 80 is better but using sch 40 for anything over 2 1/2 pipe is not the...

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SDR (Standard Dimension Ratio) pipe has the same O.D. as Schedule pipe, but with different pipe I.D. All SDR pipe in a series has the same ratio of...

2 Replies

1743 Views

Last post by CS
Sun Nov 08, 2009 2:43 pm
Homemade PCP

Last post by Brian the brain
Replies: 9
by qwerty » Sat Nov 07, 2009 11:02 am

First post

This guy has made a very nice piece of equipment, It looks very well made and he uses a very strange regulater that has a constant pressure of 82...

Last post

He machines them obviously.
And then it is quite an easy thing to make.
If you know how to..

But that doesn't mean it is not a fabulous...

9 Replies

2663 Views

Last post by Brian the brain
Sat Nov 07, 2009 2:47 pm
barrel size

Last post by Marffy
Replies: 6
by Marffy » Sat Nov 07, 2009 12:04 am

First post

ok so if i were to shoot tennisballs out of a cannon i would need a 2 1/2 inch barrel correct?

Last post

Marffy, you really need to start searching before you make useless posts like this one. Look at the wiki , look at this everything you need to know...

6 Replies

1759 Views

Last post by Marffy
Sat Nov 07, 2009 1:38 pm
Nail-Dart-Sabot

Last post by boyntonstu
Replies: 41
by dewey-1 » Mon Nov 02, 2009 10:08 pm
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Here is a concept drawing I made for BoytonStu.

It is a 2.5 inch serrated nail with a bullet sinker and a discarding sabot for a copper 3/4 inch...

Last post

I rolled a half of a 3x5 index card around a plumb bob and used hot glue to hold it.

The shot was at 100 psi and it penetrate the 1 yellow pages....
41 Replies

17237 Views

Last post by boyntonstu
Sat Nov 07, 2009 1:15 pm
How to make a threaded schrader valve

Last post by john bunsenburner
Replies: 4
by metalmeltr » Sat Nov 07, 2009 7:36 am

First post

I know that threaded schrader valves are commonly available, but before i could find one i decided to make one.

Materials

Standard tire fill...

Last post

I tried and took of too much material, was aiming at M6, and cut intot eh tube and so ruined the valve so be careful. Buts its nice to cut em, its...

4 Replies

7208 Views

Last post by john bunsenburner
Sat Nov 07, 2009 8:35 am
Foam and Fiber glass stock

Last post by john bunsenburner
Replies: 4
by john bunsenburner » Sat Oct 24, 2009 11:30 am

First post

Well I have been talking and thinking a lot abut stocks. Mainly simple ways to make them, without investing losts of time and money. In my opinion...

Last post

Thanks mate, I've seen your stock, and though i may or may not have left a comment, i found it VERY well made. thanks for your post.

I am...

4 Replies

2467 Views

Last post by john bunsenburner
Sat Nov 07, 2009 8:11 am
How to mold dart tails out of a milk container.

Last post by jimmy101
Replies: 6
by boyntonstu » Mon Nov 02, 2009 8:56 pm

First post

Very nice description and photos.

BoyntonStu

Last post

This has been posted before, though it is always good to be reminded of handy techniques. (

You would get much better shapes if you did it as a...

6 Replies

3408 Views

Last post by jimmy101
Fri Nov 06, 2009 2:50 pm
cheap ammo

Last post by john bunsenburner
Replies: 4
by cannon monkey » Thu Nov 05, 2009 7:58 pm

First post

just curious would chalk work for a good amo for small size barrels..?
easy to shape very cheap...? can get more than 2 or 3 shots from 1 stick of...

Last post

Why the f*ck would you bother shaping chalk if you could get dozens of easier, better and cheaper kinds of ammo.

Unless with a lathe it would be un...

4 Replies

1861 Views

Last post by john bunsenburner
Fri Nov 06, 2009 1:24 pm
Water bottle noise maker

Last post by jrrdw
Replies: 65
by ProfessorAmadeus » Thu Dec 21, 2006 3:10 pm
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Here is how to make a water bottle noise maker. You need:
-water bottle
-drill
-pop in tire valve
-bike pump

First get your water bottle and drill a...

Last post

Somebody said the magic bad words, for shame! :x
65 Replies

33630 Views

Last post by jrrdw
Thu Nov 05, 2009 6:14 am
homemade 12 gram co2 adaptor

Last post by Mr.Sandman
Replies: 12
by marpat » Wed Aug 20, 2008 3:04 pm

First post

so i took apart a quick connect because i was bored
to start i sliced off the steel retaining ring with a dremel
once that was sliced off and removed...

Last post

I figure this is still relavent, but how does the c02 cartridge attach? do you use threaded ones?

12 Replies

10012 Views

Last post by Mr.Sandman
Tue Nov 03, 2009 3:19 pm
Adjustable mount for laser suggestions needed.

Last post by D_Hall
Replies: 19
by boyntonstu » Fri Oct 30, 2009 10:39 am
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Is there a fairly simple way to mount a laser above/below a barrel that would be adjustable for zeroing in the gun?

3 spring loaded screws would...

Last post

Minor nitpick, but red dot sights do not use lasers. They are nothing more exotic than a red LED and a hyperolic lens that reflects a percentage of...
19 Replies

4056 Views

Last post by D_Hall
Mon Nov 02, 2009 8:34 pm
Spark plugs

Last post by jimmy101
Replies: 24
by kjjohn » Tue Oct 20, 2009 6:53 pm
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I am thinking of wiring up 5 small spark plugs in a metal chamber for my hybrid. I am going to use the spark plug electrode as the HV wire, and the...

Last post

Using the proper attenuator on measurement devices is standard safe industry practice. Why would you recommend removing the attenuating probes from...
24 Replies

6624 Views

Last post by jimmy101
Mon Nov 02, 2009 5:59 pm
Mythbusters experimenting with spudguns

Last post by Ragnarok
Replies: 21
by starman » Wed Oct 14, 2009 11:28 pm
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I tuned in to the Mythbusters on Discovery Channel this evening and found them shooting some basic spray and pray spudders. Their premise was that a...

Last post

Did anyone see if they were successful in lifting a car with duct tape?
They were. Eventually, it gave way, with the tape tearing rather than the...
21 Replies

8457 Views

Last post by Ragnarok
Mon Nov 02, 2009 5:36 pm
Intro and a combustion cannon

Last post by Heimo
Replies: 24
by Heimo » Tue Oct 27, 2009 2:36 pm
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Ok I am new here. My name is Heimo I am a South-African and I have been playing with spud guns for more than 3 years now.

here is my current...

Last post

A jet ignition system is extremely touchy. In research papers I've seen on the system they tend to be very inconsistent. It'll work one shot then not...
24 Replies

6226 Views

Last post by Heimo
Sun Nov 01, 2009 4:50 am
Anybody know of any 3d modelling apps for S.G.

Last post by dilweed
Replies: 2
by dilweed » Sat Oct 31, 2009 9:46 am

First post

hello, does anybody know about any kind of 3d modeling applications/tools that could be for/ used for designing spud guns?

thx.

Last post

thank you very much.

2 Replies

1463 Views

Last post by dilweed
Sat Oct 31, 2009 11:19 am
Hydrolic bottle jack pump

Last post by Technician1002
Replies: 17
by Sticky_Tape » Thu Jan 29, 2009 1:35 pm
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I had an idea for a really really high pressure pump made out of a bottle jack. I bought a bottle jack from canadien tire to have a look at it (it...

Last post

The dead space thing has been brushed on but not analyzed. If the displacement of the cylinder is known and the dead space is known, then the volume...
17 Replies

8885 Views

Last post by Technician1002
Fri Oct 30, 2009 9:18 pm
Crazy awesome dutch tradition: Carbide shooting!

Last post by hi
Replies: 13
by GalFisk » Thu Oct 29, 2009 12:10 pm

13 Replies

5881 Views

Last post by hi
Thu Oct 29, 2009 11:55 pm
Bernzomatic Oxygen Cylinders

Last post by jackssmirkingrevenge
Replies: 25
by kjjohn » Sun Oct 18, 2009 8:57 pm
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I am working on building a hybrid, and I want multiple shots. I was thinking of making my own separate air tank for it out of sch 80 steel pipe, but...

Last post

A dewar for liquid cryogenic liquids looks like this

We have one at work for liquid nitrogen, every now and then the safety pop-off blows and in a...
25 Replies

18676 Views

Last post by jackssmirkingrevenge
Thu Oct 29, 2009 4:58 am
Quick Work Flow Question

Last post by Technician1002
Replies: 2
by rcman50166 » Wed Oct 28, 2009 9:36 pm

First post

Here I am sitting in my apartment at college looking at a question that I don't know how to get to the answer to. The text is very vague. I'll lay it...

Last post

It looks like a fairly simple problem of finding the energy to compress 1 atm air to 1,000KPA and subtracting the energy in air at 120 KPA at 20C. I...

2 Replies

1201 Views

Last post by Technician1002
Thu Oct 29, 2009 12:05 am
if you love watching slomo, watch this video !!

Last post by spud downunder
Replies: 25
by far_cry » Sun Oct 25, 2009 6:28 pm
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First post

while i watching in youtube i got cross this.

new video that show us bullet hits steel plate and glass in slow motion ((a real slow motion)) .i...

Last post

i thought it was just cool seein the waddcutter? i think, air rifle pellet cut the perfect little hole out of the paper
25 Replies

8369 Views

Last post by spud downunder
Mon Oct 26, 2009 8:57 pm
Another Piston How to

Last post by toogers
Replies: 3
by Northir » Sun Sep 27, 2009 4:15 am

First post

Ive been playing around with a few different materials and i found one that i like, Duct tape, i havent found any problems yet, and ill have to get...

Last post

thanks, i have been trying to make a piston for 5 weeks, now.

3 Replies

3745 Views

Last post by toogers
Sun Oct 25, 2009 12:34 pm
Modeling Programs

Last post by CS
Replies: 4
by kjjohn » Sat Oct 24, 2009 4:27 pm

First post

What computer modeling programs are commonly used to create 3D models of cannons? Are there any that I could get for free?

Last post

Sticky: Useful Links & Infromation

Scroll down to design .

4 Replies

1386 Views

Last post by CS
Sat Oct 24, 2009 10:50 pm
Fishing line reel

Last post by Technician1002
Replies: 7
by tweeek » Thu Oct 22, 2009 10:27 pm

First post

Hello,

I am looking for recomendations on what some of you guys use was a reel to hold your fishing line (Like on antenna launchers)

I need to...

Last post

I launch water bottles out to the end of a 500 foot mason line with no problems. A proper cannon and heavier projectile can tow a heavier line just...

7 Replies

1516 Views

Last post by Technician1002
Fri Oct 23, 2009 5:34 pm

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