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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

652854 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

385162 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

200744 Views

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

Topics

BB gun valves?

Last post by Urban Ninja
Replies: 10
by Urban Ninja » Fri Jul 07, 2006 2:06 am

First post

I was just looking at some of the bb guns that companies such as daisy and crossman have to offer. Living in australia, they are illegal here. I need...

Last post

Thanks a lot guys, this helps a lot. I might try with a coaxial for this one and maybe think about making a target rifle, small bore. Only problem is...

10 Replies

3154 Views

Last post by Urban Ninja
Mon Jul 10, 2006 3:20 am
what pressures will glass withstand

Last post by Atlantis
Replies: 23
by i learn quickley » Thu Jul 06, 2006 10:27 pm
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i have a glass blower for a friend and i wanted to know at what thickness will glass withstand the force of the average explosion also he can thread...

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Not only would the glass shatter, it will shatter into very small pieces, unlike PVC, which means the doctor will probably miss a few pieces which...
23 Replies

6186 Views

Last post by Atlantis
Sun Jul 09, 2006 9:32 pm
Nipple into chamber wiggles a bit, what do i do?

Last post by Mihlrad
Replies: 13
by Mihlrad » Wed Jul 05, 2006 4:50 pm

First post

Should i epoxy it or something? it moves around and im afraid eventually it will crack the chamber. I mean my propane meter by all this.

Last post

what most probably must of happened then is i didnt drill perfectly straight i must have leaned into it a bit and made a weird hole, o well it...

13 Replies

2966 Views

Last post by Mihlrad
Sun Jul 09, 2006 9:10 pm
New way to make spark strips?

Last post by benstern
Replies: 11
by carlbelcher » Sat Jul 08, 2006 11:36 pm

First post

I found this pen while I was at Radio Shack and I thought that it might work really well for making spark strips for combustions/hybrids. It a...

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actually it is a solution of 45-50% 10 micron Silver in a Butyl Acetate solution.

11 Replies

3173 Views

Last post by benstern
Sun Jul 09, 2006 8:55 pm
Amazed at performance of my new potato gun. Read this.

Last post by Mihlrad
Replies: 8
by Johnny Blast » Sun Jul 09, 2006 12:13 pm

First post

My new gun has a cylinder (pvc of course) 2 feet long and 4 inches in diameter for the combustion chamber. I have a 2 inch diameter barrell that is...

Last post

all in good physics and chemistry, i hate both subjects but they help... Get some pictures up i still wanna see it.

8 Replies

2622 Views

Last post by Mihlrad
Sun Jul 09, 2006 8:23 pm
My vortex BBMG with no vortex block

Last post by noname
Replies: 6
by noname » Sat Jul 08, 2006 9:10 pm

First post

This is a diagram of the BBMG. it works when I blow in the bottom so when I hook up the vac I get to have fun. :twisted: Yes there's no vortex block...

Last post

The only way I know of putting pics in my posts are by editing. If there's another way oh well this is easy enough. Hopefuuly everyone can read that....

6 Replies

2455 Views

Last post by noname
Sun Jul 09, 2006 4:47 pm
Hop-ups

Last post by noname
Replies: 8
by noname » Sat Jul 08, 2006 1:45 pm

First post

Hop-ups actually work! I just put a 3 1/2 long piece of electrical tape in the end of my PB barrel and used a laser to set the barrel aligned on a...

Last post

The only paint I have (or had since I shot the last few yesterday) were 8 month old Brass Eagle Wild Streak, which is basically runny orange shit in...

8 Replies

1898 Views

Last post by noname
Sun Jul 09, 2006 4:31 pm
Exploding barrel

Last post by WOW!!
Replies: 9
by rna_duelers » Fri Jul 07, 2006 6:49 pm

First post

I was using my cannon the other day with a 1 barrel and i put a small sabot of spud down my barrel followed by about 6 marbles for a shot gun but...

Last post

It had to be a maf defect. The marbles palyed a role too I think, if the pipe was messed up and it was brittle and the marbles did get stuck both...

9 Replies

2141 Views

Last post by WOW!!
Sun Jul 09, 2006 3:30 pm
T-Shirt Cannon Question

Last post by Shrimphead
Replies: 5
by Carpe Spud » Sat Jul 08, 2006 8:34 pm

First post

I'm trying to build a low-power t-shirt cannon for a small school, powered by normal, 12g canisters of CO2. I'm thinking an over-under orientation,...

Last post

I would suggest that you make a decent sized gun with a good c:b ratio. When you are going to use it for shooting t-shirts, you only have to pump it...

5 Replies

2137 Views

Last post by Shrimphead
Sun Jul 09, 2006 12:04 am
Converting an array of air tanks for spud gun use

Last post by carlbelcher
Replies: 17
by Caramanos2000 » Thu Jul 21, 2005 6:41 pm
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hello, I am currently in the design process of my second gun, which I am hoping to build with either a 20lb propane tank or a 15lb extinguisher, any...

Last post

Just to clarify for everyone most commonly available fire extinguishers are dry chemical which are only rated to 250psi.

But you can buy co2 fire...
17 Replies

5896 Views

Last post by carlbelcher
Sat Jul 08, 2006 11:14 pm
I wanna build a large pnuematic cannon.

Last post by WOW!!
Replies: 11
by Mihlrad » Thu Jul 06, 2006 1:45 pm

First post

I decided to abandon my combustion project and return the returnable parts, and from it i have about 8 feet of 4 sch 40 left... I wanted to build...

Last post

On the side it syas NSF-PW

11 Replies

2795 Views

Last post by WOW!!
Sat Jul 08, 2006 6:07 pm
bolt action sniper?

Last post by A-98
Replies: 2
by A-98 » Fri Jul 07, 2006 11:14 pm

First post

can anyone provide a link. its the guy that does the high powered nerf guns

Last post

thank you. i knew it had something to do with boltaction sniper but it wouldnt work

2 Replies

976 Views

Last post by A-98
Sat Jul 08, 2006 12:02 am
SuperGun Barrel

Last post by Atlantis
Replies: 8
by Atlantis » Thu Jul 06, 2006 11:11 pm

First post

I did some research on the Supergun, once the shell was fired, the ammo moved down the tube setting off multiple charges and gaining speed after...

Last post

The original supegun was like 300 ft long, they had to build it on the side of a hill.

8 Replies

3851 Views

Last post by Atlantis
Fri Jul 07, 2006 8:19 pm
my AEG airsoft gun

Last post by carlbelcher
Replies: 15
by NUKEWARHEADSCIENTIST » Tue Jul 04, 2006 7:37 am
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this is a good one. i made this gun out of a 4 dollar air compressor, a 9 mm tube, a 7 mm tube, rubber tubing and a batery pack (plus electrical...

Last post

They say 250psi but I've never seen over 180psi. Not bad, but I only got 180psi when I was filling a very small (3.4ci) chamber.
15 Replies

6464 Views

Last post by carlbelcher
Fri Jul 07, 2006 6:14 pm
Pnuematic, would this be safe?

Last post by carlbelcher
Replies: 4
by Mihlrad » Wed Jul 05, 2006 8:03 pm

First post

I was considering building a pnuematic with a backpack that consisted of 2 , 4 resevoirs, would it be safe to have 2 four inch resevoirs dump air in...

Last post

Depending on your setup I would try to mount your valve(s) on the barrel side of the tube to reduce dead space.

Also depending on what kind of...

4 Replies

1546 Views

Last post by carlbelcher
Fri Jul 07, 2006 6:11 pm
The Schmunion

Last post by mark.f
Replies: 6
by mark.f » Thu Jul 06, 2006 8:42 pm

First post

This is my first real topic here...

This is a hybrid concept. After seeing a lot of union explosions on hybrids, I decided to devise a way to...

Last post

My idea for a re-usable platform would be somthing like a camloc lathed down to fit inside the 2 SCH-80, with the O-rings and everything cut into it,...

6 Replies

2724 Views

Last post by mark.f
Fri Jul 07, 2006 5:34 pm
valve coef in ggdt?

Last post by A-98
Replies: 4
by A-98 » Thu Jul 06, 2006 10:52 pm

First post

what is it? is it the same as flow coef?and what does it do?

im making a mini mega-launcher using a barel sealing piston and a 9/32 barrel that is...

Last post

whoops srry bout that i think i put ina wrong # in my conversion. i figured that out at work today (whichis where im typeing this fom) and i was...

4 Replies

1580 Views

Last post by A-98
Fri Jul 07, 2006 3:24 pm
Ignition Coil Circuits....

Last post by frogy
Replies: 5
by frogy » Tue Jul 04, 2006 2:10 pm

First post

This is probably mainly to Gort because he knows electrical stuff well...

I have a few questions...

How would I set up a 555 timer\switching...

Last post

I didn't buy anything yet, I was just using parts that I have seeing that I work on circuits and whatnot all the time, I'm just new to the high...

5 Replies

1568 Views

Last post by frogy
Fri Jul 07, 2006 1:13 pm
Backpack TBL

Last post by Spyider
Replies: 3
by PCGUY » Thu Feb 24, 2005 8:37 pm

First post

BACKPACK TBL
Provided By - ??? :-(

^ Click picture for full size view ^
Provided By - ??? :-(

Last post

lol they are all amazed about the proram that made it and not the machine itself i love it though :P

3 Replies

4175 Views

Last post by Spyider
Fri Jul 07, 2006 12:10 am
Homemade Chronograph

Last post by Urban Ninja
Replies: 10
by Urban Ninja » Thu Jul 06, 2006 8:27 am

First post

Does anybody here know how to make a CHEAP chronograph? I really need one but do not want to spend a lot on one. Also I like to make alot of my...

Last post

Cool thanks guys, I might incorporate a few ideas and post a how to on making one. Thanks for the link. :mrgreen: .

10 Replies

2845 Views

Last post by Urban Ninja
Thu Jul 06, 2006 11:50 pm
GGDT for mac?

Last post by A-98
Replies: 2
by A-98 » Thu Jul 06, 2006 12:08 pm

First post

is there such a thing?

Last post

good point. ill just use my dads mac mini with boot camp

2 Replies

863 Views

Last post by A-98
Thu Jul 06, 2006 2:22 pm
Super air cannon

Last post by spudshot
Replies: 19
by jjk92 » Sun Jul 02, 2006 8:40 pm
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i was thinking the other day about building a huge air cannon a 5 inch chamber to hold massive amounts of air with a five inch supah valve from joel...

Last post

lets not forget labor, normal machining hourly cost, 30-70 + dollars per hour, and if it takes joel 2 hours to assemble them, you're paying for his...
19 Replies

5435 Views

Last post by spudshot
Thu Jul 06, 2006 7:58 am
need cash

Last post by spud_masher2000
Replies: 11
by spud_masher2000 » Mon Jul 03, 2006 9:07 pm

First post

how could i get money from spud guns.must be quick and very cheap to make.anything would be awesome cheers

Last post

I mow lawns,pick spuds and milk cattle.need something quick and easy and i want to make to get from from easy to make cannons in 5 minutes or...

11 Replies

3089 Views

Last post by spud_masher2000
Wed Jul 05, 2006 7:05 pm
Steam Engine Auto Idea

Last post by Atlantis
Replies: 2
by Atlantis » Wed Jul 05, 2006 1:55 pm

First post

Notice the rod that slides back and forth on the main piston, if that were made out of a hollow tube, and had a perforation that would open up at the...

Last post

I'm saying that the bolt would be open once the piston has reached the opposite end of the chamber, the steam/air would escape at this point anyway...

2 Replies

1292 Views

Last post by Atlantis
Wed Jul 05, 2006 4:39 pm
Here's The Valve Plans Huse

Last post by noname
Replies: 7
by noname » Mon Jul 03, 2006 10:43 pm

First post

OK here we go. Green is the T, Yellow is the piston, blue is a 1.5 street elbow, gray is a 2.5 to 1.5 bushing, red is a 2.5 coupler, dark green is a...

Last post

Gaskets are like nylon rubber disks that are kind of flexible but hard too. It's not hard to think of stuff when you know how it works.

7 Replies

2211 Views

Last post by noname
Wed Jul 05, 2006 10:17 am

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