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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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First post

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

1069626 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

533157 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

296933 Views

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

Topics

Inline Piston Idea

Last post by boilingleadbath
Replies: 4
by Atlantis » Sun Apr 16, 2006 10:44 pm

First post

I came up with an idea for how to make an inline piston valve. The bolt is modified from Clide's. The exhaust valve can be routed to wherever, in the...

Last post

Yeah, it'll work. A couple things though:
1: the pilot vent tube has to be connected to the end of the piston movment tube.
2: this requires O-rings.

4 Replies

2119 Views

Last post by boilingleadbath
Mon Apr 17, 2006 8:08 pm
Big Banger

Last post by Atlantis
Replies: 5
by marilynblack » Mon Apr 17, 2006 1:45 am

First post

my first gun has left me grinning with a grin that will wipe a frown off any ones face

Last post

I'd say just delete it, unless that's what locked means.

5 Replies

2039 Views

Last post by Atlantis
Mon Apr 17, 2006 7:34 pm
machine gun plane

Last post by boilingleadbath
Replies: 5
by Rambo » Sun Apr 16, 2006 12:42 pm

First post

What do you think about my plane fo mg?The ammonitions are easy to make and it will be so cool...Gangsta stiyle.

Last post

discussion of solid propelents is against the rules. topic locked.

5 Replies

3326 Views

Last post by boilingleadbath
Mon Apr 17, 2006 11:51 am
Sch rateings

Last post by WOW!!
Replies: 3
by WOW!! » Sun Apr 16, 2006 9:09 pm

First post

I got a question, if the PVC pipe companys rate they pipes/fittings at different PSI, and there are warnings saying not to be used with compresses...

Last post

Right but what is the diff between water PSI and gas Psi, if you can rate 1 PVC at 468 Psi and then do not use it for high Psi applactions, you no...

3 Replies

1372 Views

Last post by WOW!!
Mon Apr 17, 2006 9:38 am
Auto Cartridge Gun

Last post by taz22
Replies: 15
by Atlantis » Fri Apr 14, 2006 11:44 pm
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First post

If you took this design...

...and used cartridges with one end sealed and one end a burst disk, and put a penetrator on the bolt, wouldn't it...

Last post

@shrimphead. i don't get it:S how do you give your ammo pressure??
the mag i made will be just made out of square box section and welded a platen on...
15 Replies

5626 Views

Last post by taz22
Mon Apr 17, 2006 3:00 am
stripping combustion canon

Last post by feral_patriot
Replies: 4
by feral_patriot » Sun Apr 16, 2006 7:48 am

First post

Recently I was showing one of my children some of the very cool -looking launchers on this site when my 7yr old asked me why I hadn't painted any of...

Last post

Thank you both for the time and effort to help us salvage what had been hours of fun and years of memories!
After my inquiry I:
1. Did spray over 4...

4 Replies

1746 Views

Last post by feral_patriot
Mon Apr 17, 2006 2:13 am
Sprinkler Valve Guide Rod

Last post by rna_duelers
Replies: 4
by Urban Ninja » Sun Apr 16, 2006 4:28 am

First post

Someone may have already posted about this, sorry if they have but I have just opened up a sprinkler valve I found in my spudgun part box and have...

Last post

Well with my first pneumatic it did effect the power becuase hardly and came out of the barrel,but also another way around it is to slightly fill the...

4 Replies

30901 Views

Last post by rna_duelers
Sun Apr 16, 2006 9:18 pm
Should this pneumatic potato cannon work?

Last post by drac
Replies: 1
by lschmidt » Sun Apr 16, 2006 12:44 pm

First post

I am using a 1 orbit solenoid controlled sprinkler valve. It is the kind where it turns around, not the straight-through.

Originally, my compression...

Last post

The Anti-Siphon valves reduce flow a tiny bit, but not enough to hinder performance. Are you using a modified valve? If not, you may want to look...

1 Replies

1367 Views

Last post by drac
Sun Apr 16, 2006 6:45 pm
Rubber Source

Last post by )DEMON(
Replies: 4
by Atlantis » Fri Apr 14, 2006 11:08 pm

First post

i recently found a Giant Eraser. It's about 3/4 thick and about 3X2 Inch wide. Could this be used for a piston rubber face?

Last post

the rubber bit in a syrindge should work nicely because it is soft

and i wouldnt mind any body donating 60 spudbux to me (hint hint)

4 Replies

2059 Views

Last post by )DEMON(
Sun Apr 16, 2006 2:56 pm
Tee diaphragm concept

Last post by PVC Arsenal 17
Replies: 8
by PVC Arsenal 17 » Sat Apr 15, 2006 10:34 am

First post

Ok here's an idea I came up with recently. The plan was to have a diaphragm enclosed in a tee so you could simply screw in a barrel and an air...

Last post

The tee is 2 and the inner pipe will either be 3/4 or 1 inch. I plan on using a fixed diaphragm made from a rubber pipe cap.

8 Replies

4102 Views

Last post by PVC Arsenal 17
Sun Apr 16, 2006 12:29 pm
just wondering

Last post by WOW!!
Replies: 15
by iamthewalrus » Fri Jun 10, 2005 12:02 am
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im jsut wondering, will u get the same preformance from a bbq spark as a stungun spark?? ik the snug gun is higher voltage but does that ignite the...

Last post

From what i have heread if you were just going to use to electrodes in the chamber for a Hybrid that the spark energy is not great enought to ignight...
15 Replies

6487 Views

Last post by WOW!!
Sun Apr 16, 2006 11:00 am
Reducer Bushing question

Last post by spudshot
Replies: 9
by natey14 » Mon Jan 16, 2006 11:19 pm

First post

Well my last cannon I built someone told me that the reducer I had used was not pressure rated so I couldn't push it past 60 psi.

I'm planning on...

Last post

you can also go to they're cheaper and if i recall, all of there fittings are pressure rated

9 Replies

7912 Views

Last post by spudshot
Sun Apr 16, 2006 10:10 am
Something weird with fuel

Last post by spudshot
Replies: 16
by MisterSteve124 » Sat Apr 15, 2006 2:52 pm
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Before I built my cannon I saw on the forums that the less fuel you use the better. So when I was using mine I figured the same thing. But whenever I...

Last post

i've let this happen a few times, the fire lasts about 10 seconds, it barely leaves the chamber warm, and there seems to be no difference in the...
16 Replies

4776 Views

Last post by spudshot
Sun Apr 16, 2006 10:08 am
Building Stun Gun

Last post by Andrew52
Replies: 6
by TalonXxX » Wed Nov 02, 2005 9:01 pm

First post

Hey all. I've decided to do stun gun ignition instead of piezo... got these schematics... look pretty simple. Just a noob question tho, why do stun...

Last post

yah those camera things work good they shock pretty good though and they incinerate the electrodes after a while and have to be replaced

6 Replies

3475 Views

Last post by Andrew52
Sun Apr 16, 2006 12:44 am
explosion

Last post by Andrew52
Replies: 13
by )DEMON( » Fri Apr 14, 2006 2:54 pm

First post

i have been on this forum for about a month and am perfecting my pnumatic(its taking a while,im a perfectionist) i have taken my chamber up to 20...

Last post

yes but its nice to have somthing sturdy like pvc but it would be cool to see the moisture when the rapid pressure drop happens

13 Replies

3319 Views

Last post by Andrew52
Sun Apr 16, 2006 12:27 am
modding sprinkler vlaves.

Last post by schmanman
Replies: 5
by me78569 » Sun Oct 09, 2005 8:35 pm

First post

i was wondering when reassebling the sprinkler valves should i leave in the springs or remove them? i dont see what good they would do besides...

Last post

lucky! yor physics teacher let you shoot spudguns! once at our school,a kid brought one of those stupid model rockets from wal-mart to demonstrate...

5 Replies

2377 Views

Last post by schmanman
Sat Apr 15, 2006 7:46 pm
...Now where can I get a blowgun for my sprinkler valve?

Last post by feral_patriot
Replies: 3
by -Matt- » Fri Apr 14, 2006 10:09 pm

First post

I just got word that mcmaster-carr no longer ship to private induviduals outside of the US... Does Home Depot sell blowguns and such? Or does anyone...

Last post

autoparts store...wal-mart...k-mart...variety type department stores...I don't know where you are located, but where I am there are numerous...

3 Replies

2038 Views

Last post by feral_patriot
Sat Apr 15, 2006 12:03 am
Sprinkler Valve diaphragm blockage

Last post by saladtossser
Replies: 1
by -Matt- » Fri Apr 14, 2006 11:40 am

First post

I am going to mod a 1 sprinkler valve for my mini pneumatic. I am using this part to tap the sprinker valve for the blow gun: Part #9171K214 on...

Last post

dont thread in so deep, only let the tip go in

1 Replies

1607 Views

Last post by saladtossser
Fri Apr 14, 2006 11:45 am
question on making valves

Last post by Andrew52
Replies: 11
by jdp204 » Mon Mar 07, 2005 8:27 pm

First post

hi, im new to pnumnatic cannons and i made my first one this week, a small unimpressive one to me, but my friends little brother thought it was the...

Last post

and with the blowgun when you fire it its like a trigger which is cool

11 Replies

6888 Views

Last post by Andrew52
Fri Apr 14, 2006 11:00 am
Seams on galvanized steel piping

Last post by zvallance1
Replies: 10
by zvallance1 » Thu Apr 13, 2006 7:36 pm

First post

Well, i've recently rediscovered a bag of about 200 marbles that i was planning on using for my fishtank, but really never got around to putting them...

Last post

get a pvc barrel !!! ta-da. much more simple. lighter,too.If it needs to have threaded ends,well, buy and glue on a threaded adapter. :D...

10 Replies

3195 Views

Last post by zvallance1
Fri Apr 14, 2006 10:47 am
Compressed air cartridge

Last post by taz22
Replies: 12
by Lucas_Pukas » Wed Feb 01, 2006 2:41 am

First post

So I was thinking the other day (And gave myself a headache!) and a thought popped into my head. It would be cool to have interchangable, pre-made...

Last post

i'v used tis 1 becaus it was the 1st gun that came up in my mind, with a male quick connect:D

12 Replies

11339 Views

Last post by taz22
Fri Apr 14, 2006 8:51 am
Safety Question

Last post by Ballad_Black
Replies: 5
by Ballad_Black » Tue Apr 11, 2006 11:55 pm

First post

Hmm. As a few of you might have noted, I havent been around much lately. In fact, I had'nt made a new gun in a month or so. Well, today I went AWOL...

Last post

Yea, I have a scar on my wrist from an end cap being shot off. I's a perfect 90 degree half square. Been there since my first gun, so about 6 months...

5 Replies

4267 Views

Last post by Ballad_Black
Fri Apr 14, 2006 2:53 am
ideal barrel to resovoir ratio for pneumatic

Last post by rna_duelers
Replies: 4
by demilus » Wed Apr 12, 2006 9:57 pm

First post

what would be the perfect ratio for a pneumatic cannon with a 10 long 2 wide resovoir to a 2 barrel at 100 psi?

EDIT: thanks muchly boilingleadbath

Last post

yeh?i was wondering the same thing atlantis,wouldnt that hinder performance not increase it,i would go for a barrel of the same lenght of chamber if...

4 Replies

1876 Views

Last post by rna_duelers
Thu Apr 13, 2006 9:03 pm
Whats the best C:B ratio for a combustion Cannon?

Last post by Shrimphead
Replies: 5
by amentic » Wed Apr 12, 2006 10:44 pm

First post

Im building my first combustion cannon and i got a 2 PVC pipe for my barrel and a 4 pipe for my chamber. I want my barrel to be 48 (4 feet) long and...

Last post

Umm, ya Rambo, the most effecient is from .6:1-.8:1. A .5 c:b ratio will make it quieter but also less powerful.

@ Amentic- Trying to figure out...

5 Replies

2576 Views

Last post by Shrimphead
Thu Apr 13, 2006 7:41 pm
Whats easiest?

Last post by MisterSteve124
Replies: 5
by Tommy_TreeTop » Mon Jun 20, 2005 8:59 am

First post

What is easier to build? Is a combustion with all the mods and valves and stuff? Or is a pnuematic and all the stuff for that? If you could let me...

Last post

If your just going for a simple cannon build a combustion.

5 Replies

2578 Views

Last post by MisterSteve124
Thu Apr 13, 2006 9:34 am

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