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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

652098 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

384891 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

200585 Views

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

Topics

ggdt HELP

Last post by D_Hall
Replies: 25
by FORE!!!! » Tue Jul 14, 2009 5:36 am
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First post

hello ive recently downloaded the ggdt and am wondering if i could get some help with filling in the blanks

ive attached a picture for refrence

in...

Last post

Sorry but how do you calculate for a coaxial? :(

Barrel sealing piston valve, 45-55% flow co-efficient, seat diameter the same size as barrel,...
25 Replies

4689 Views

Last post by D_Hall
Fri Jul 24, 2009 10:14 pm
BL-714

Last post by PVC Arsenal 17
Replies: 1
by insanepvc » Thu Jul 23, 2009 8:38 pm

First post

Does anyone know what kind of fitting is on the back of the BL-714 gun. I keep looking for something close to it and no luck. Any info would be great...

Last post

Looks like a female adapter with a cap connected to the socket end.

1 Replies

892 Views

Last post by PVC Arsenal 17
Thu Jul 23, 2009 8:42 pm
how to get multiple shoot's (pneumatic)

Last post by daberno123
Replies: 7
by FORE!!!! » Wed Jul 22, 2009 9:55 pm

First post

hello just wondering if there is a way to get multiple shoots out of one fill of my pnematic gun

or if i was to use a prefilled tank to connect to...

Last post

Check out Hotwired's method.

7 Replies

1983 Views

Last post by daberno123
Thu Jul 23, 2009 10:18 am
who is hooked?

Last post by Mogwog
Replies: 31
by cannon monkey » Wed Jul 22, 2009 7:26 am
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i was thinking the other night on how i cant get my mind of rebuilding another pistion i made and it too small so ya went on about that for an hour...

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yup! that's me: Hook, line and sinker (and wallet to a sizeable extent...)

@cannon monkey, I've had a pissed off neighbour but not cops (although...
31 Replies

8741 Views

Last post by Mogwog
Thu Jul 23, 2009 8:02 am
Printable Targets

Last post by jrrdw
Replies: 4
by neeewwww » Wed Jul 22, 2009 1:01 pm

First post

I was looking for some information about survival techniques and some war (WWII) related docs/maps/info/whatelse...

And I found this amazing site...

Last post

Thanks for the links neeewwww, I'm sure someone will get some use out of them.

4 Replies

1787 Views

Last post by jrrdw
Wed Jul 22, 2009 6:25 pm
Quiet targets?

Last post by twizi
Replies: 9
by inonickname » Sun Jul 19, 2009 5:49 am

First post

I need something quieter to shoot at, currently I'm shooting at layers of cheap dodgy ply with marbles, and the sound of the marble breaking through...

Last post

arrow targets work well they stop thing very well

9 Replies

2044 Views

Last post by twizi
Sun Jul 19, 2009 4:59 pm
Chronograph Poll - Which one do you have?

Last post by psycix
Replies: 18
by boyntonstu » Thu Jul 16, 2009 5:46 pm
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How do you measure muzzle velocity?

Which brand/model chrony do you use?

Would you buy it again?

I'm in the market for a chrony and I am seeking...

Last post

I'm using a M-1 master chrony. Same as the F-1, but then puts out m/s and has a detachable wired display.
It works so easy and nice, its...
18 Replies

6001 Views

Last post by psycix
Sun Jul 19, 2009 12:58 pm
A question for all you soldering experts

Last post by cdheller
Replies: 7
by skyjive » Fri Jul 17, 2009 1:18 pm

First post

If I have a some copper fittings soldered together, and I melt the solder and pull them apart, can I solder them together again in a different way...

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for what its worth

although you have to heat both parts ftg and pipe it helps to throw a little more heat on the pipe .

smacking or knocking off...

7 Replies

3048 Views

Last post by cdheller
Sun Jul 19, 2009 12:18 pm
Add crosshairs to binoculars

Last post by Ragnarok
Replies: 17
by jor2daje » Fri Jul 17, 2009 7:52 pm
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I figured this out after I took apart a cheap scope I had to try and straighten one of the cross hairs, I realized it was just thin copper wire....

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@ POLAND_SPUD: I've said I'm a good shot - not a world class one.

You're quite welcome to buy airgun scopes that can't deal with harsh recoil if you...
17 Replies

13564 Views

Last post by Ragnarok
Sun Jul 19, 2009 8:57 am
More CO2 confusion....

Last post by inonickname
Replies: 6
by jeepkahn » Fri Jul 17, 2009 9:04 am

First post

The more I use co2, the more I realize I don't know about it...

Last nite while shooting glowsticks with my copper chambered minimodgun and a 3/4...

Last post

I think you'll find that rapid filling causes it really. The cooling from expansion will be absorbed throughout the regulator/bottle (which would...

6 Replies

1036 Views

Last post by inonickname
Fri Jul 17, 2009 9:58 am
Online Connversion Calculator...

Last post by Hotwired
Replies: 1
by jeepkahn » Thu Jul 16, 2009 1:34 pm

First post

I'm sure some of you may have used the sight, but i just noticed the weight to volume calculator today...

prolly be handy for hybrid guys, as well...

Last post

Excellent, I now know that 1 tonne of unshelled peanuts takes up 3.676 cubic metres of space :)

Handy gadget but some very obscure options on the...

1 Replies

613 Views

Last post by Hotwired
Thu Jul 16, 2009 3:11 pm
breech loader

Last post by kjjohn
Replies: 10
by kjjohn » Sun Jul 12, 2009 8:36 pm

First post

I need some help with a breach loader. Put quite simply: How do you make one? I would search Google, but I think I will get a more complete answer...

Last post

thanks, helped alot

10 Replies

2051 Views

Last post by kjjohn
Wed Jul 15, 2009 4:50 pm
Explosive pvc failure

Last post by LCTChamp
Replies: 8
by skyjive » Sun Jul 12, 2009 10:59 pm

First post

So I just finished the soldering and threading and my shiny new copper marble MG was complete. The only thing lacking was a copper fitting to cap off...

Last post

PVC, cold, and high pressures don't work well together. I'm just glad you didn't get hurt.

8 Replies

2065 Views

Last post by LCTChamp
Wed Jul 15, 2009 3:35 pm
Cheap Propane Metering Device

Last post by kjjohn
Replies: 24
by kjjohn » Sun Jul 12, 2009 6:54 pm
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I know that it can be fairly cheap already to buy a couple valves and copper pipe to make a metering device, but if you want a quicker load time,...

Last post

Actually for this gun I am going to be shooting 50cal slugs instead of potatoes, but I suppose there is not much of a difference.

Also, I can find...
24 Replies

9719 Views

Last post by kjjohn
Tue Jul 14, 2009 9:06 pm
30$ broken rifle

Last post by john bunsenburner
Replies: 10
by john bunsenburner » Sat Jun 20, 2009 12:35 pm

First post

Well, i was roaming a flee market with my mom this morning and stumbled over a nice little dealer. He had six guns for sale(without license as they...

Last post

No more replys?

10 Replies

3945 Views

Last post by john bunsenburner
Tue Jul 14, 2009 5:11 pm
Best way to convert this to a cartridge mechanism?

Last post by raptorforce
Replies: 9
by inonickname » Sun Jul 12, 2009 7:30 am

First post

Here's a quick full auto design I drafted.It combines the benefits of blowback (well, blow forward in this case) with the blow forward bolt. So...

Last post

I think that inonickname is attempting to make something like an open bold machine gun , which is significantly easier to make than a closed bolt...

9 Replies

4869 Views

Last post by raptorforce
Tue Jul 14, 2009 10:27 am
sleeving pressure rating

Last post by pat123
Replies: 7
by pat123 » Mon Jul 13, 2009 11:32 am

First post

I am planning on sleeving a 1.5 pipe inside a 2 to make a hybrid.
The 1.5 pipe is rated to 330 psi and the 2 pipe is rated to 280psi.
What do you...

Last post

well my Lowes and Homedepot don't sell sch80 pvc bigger than 1 .
1.5 sch40 isn't a tight fit in sch40 2 so i might have to change my design a...

7 Replies

1922 Views

Last post by pat123
Mon Jul 13, 2009 2:28 pm
Want a sprinkler valve?

Last post by jrrdw
Replies: 23
by spudtyrrant » Thu Jul 09, 2009 11:23 am
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i have a 2 sprinkler valve already modded works great if anyone would arrange and pay shipping i will send it to them(only for serious cannons i want...

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Reserving for certin group is a bit unfair I think. It's your valve do with it what you want, but do it through PM's and keep it between you and the...
23 Replies

7762 Views

Last post by jrrdw
Sat Jul 11, 2009 2:42 pm
still confused about the different types

Last post by feathers
Replies: 64
by feathers » Tue Jul 07, 2009 11:13 pm
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looked every where but i dont understand how the different cannons work so could some one explain or post a link

Last post

Nice cannon feathers, I'm not going to rant about DWV (its been done (above)) I've built an under over with that kind of sprinkler valve. For opening...
64 Replies

15792 Views

Last post by feathers
Fri Jul 10, 2009 4:42 pm
2.5" Projectiles

Last post by jackssmirkingrevenge
Replies: 2
by Spain707 » Fri Jul 10, 2009 9:03 am

First post

Tennis balls are failing me.

I'm thinking about using racquet balls. They have a diameter of 2.25 and the ID of Sch 40 is about 2.4.

Anyone know...

Last post

Consider our benevolent sponsors ;)

2 Replies

1216 Views

Last post by jackssmirkingrevenge
Fri Jul 10, 2009 1:37 pm
need info

Last post by FORE!!!!
Replies: 4
by FORE!!!! » Thu Jul 09, 2009 11:39 am

First post

im wondering if anyone can tell me if i was to set up my cannon igntion like this ,with 2 spark point running from the one piezzo???

Last post

hey jimmy my main man nice diagram (idiot proof) really cudos to you,,

but since yesteday ive decided to put my combustion cannon on hold,and build...

4 Replies

1538 Views

Last post by FORE!!!!
Fri Jul 10, 2009 9:19 am
Miniature replicas on request

Last post by jackssmirkingrevenge
Replies: 13
by inonickname » Sat Jul 04, 2009 5:18 am

First post

Well after having a bit of fun making a miniature replica of Moonbogg's Cobra Venom I've decided to do miniature replicas on request. These will...

Last post

the only obstacle would be a flippin fill valve.. Any ideas?

If I had any I would have already made one myself ;)

13 Replies

2854 Views

Last post by jackssmirkingrevenge
Mon Jul 06, 2009 12:37 pm
Streetwise Stun Gun Review & How-to

Last post by Ragnarok
Replies: 4
by metallover » Sat Jul 04, 2009 12:07 pm

First post

Awhile ago I found myself looking for a better ignition system. I searched on ebay Stun gun and I got pages of results. The one I got was the...

Last post

Someone (Latke?) made a safety cover for the default gap on their stungun.
Quite right. 7th and 8th pictures down

4 Replies

8431 Views

Last post by Ragnarok
Sun Jul 05, 2009 8:12 pm
Vacuum cannon

Last post by inonickname
Replies: 14
by Molybdenum » Sun Jun 28, 2009 6:13 pm

First post

I came accross something in the school physics lab that I found intriguing. The vacuum cannon consists of a pipe that contains a projectile, sealed...

Last post

Fridge compressors make a good vacuum I've used them when casting epoxy, they hold the vacuum because of the internal check valve.

Yep.

Clicky.

14 Replies

7168 Views

Last post by inonickname
Fri Jul 03, 2009 8:05 am
Sealing Leaks?

Last post by frozebyte
Replies: 7
by frozebyte » Thu Jul 02, 2009 7:39 am

First post

Hi all,
i apologise if there are already topics on this question, but i couldn't find any in the search results.

My current problem is the sealing...

Last post

Thanks for the replies! i would use o-rings and teflon for most of the joints, and teflon for those that dont fit o-rings.
i tested my spud before...

7 Replies

2696 Views

Last post by frozebyte
Fri Jul 03, 2009 5:35 am

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