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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

1560316 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

750004 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

408101 Views

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

Topics

Mapp gas characteristics

Last post by BigBang J
Replies: 22
by BigBang J » Sat Jan 15, 2011 10:32 pm
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Hey guys,

I am having some trouble finding information on map gas characteristics.
I am specifically wondering if mapp is a refridgerent gas like...

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And what what kind of valve is a DCV?

A different name for the same thing

Why does having to regulate hpa make you sad?

Because feeding HPA...
22 Replies

11707 Views

Last post by BigBang J
Thu Feb 10, 2011 9:19 pm
Anyone used the site Poweraire?

Last post by potatoflinger
Replies: 3
by potatoflinger » Fri Jan 28, 2011 11:25 pm

First post

After a bit of a break from spudding, I'm starting to get back into it. I have a few ideas for controlling a cannon with electronic components. The...

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I'm going to go ahead and order some stuff. Time to move this project into construction phase :twisted:

3 Replies

1760 Views

Last post by potatoflinger
Mon Jan 31, 2011 12:14 pm
Does your pneumatic Air Gun has a leak?

Last post by nadjatee1996
Replies: 19
by nadjatee1996 » Fri Jan 28, 2011 10:24 am
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Well, mine did, and I found an easy solution, this can be done with a sink or a fish tank, just stick the thing in there, pump a few times and note...

Last post

No, the putty is actually quite effective and covering leaks, I couldn't even twist out my old air tank ( epoxied it to the handle of my gun) I had...
19 Replies

10885 Views

Last post by nadjatee1996
Sun Jan 30, 2011 6:34 pm
Piston Valve help

Last post by D&J
Replies: 8
by BigBang J » Fri Jan 21, 2011 9:48 pm

First post

Hey guys I am still having trouble designing the valve for my hybrid gun.
I have a question here, In the image below what would happen? Will the...

Last post

Hello wonderful people of Spudfiles ,

I need help building my piston valve. I can't find the parts at my local Lowe's store, or anywhere! Can anyone...

8 Replies

3285 Views

Last post by D&J
Sat Jan 29, 2011 11:00 pm
magazine feed using magnets instead of springs

Last post by saefroch
Replies: 15
by jackssmirkingrevenge » Fri Jan 14, 2011 3:51 am
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Interesting concept:

He claims to have a patent out (N o . 61279898102809) but I haven't been able to find it after a quick search.

Last post

probably increases your hit chance about as much as the gravitation between you and the bullet :D Actually a LOT more than gravitation... :wink:
15 Replies

10777 Views

Last post by saefroch
Sat Jan 29, 2011 10:29 am
Recoil Energy Calculations

Last post by saefroch
Replies: 8
by saefroch » Fri Jan 28, 2011 9:19 pm

First post

I think I know how one would calculate recoil energy from just the projectile, use conservation of momentum to find the velocity of the cannon based...

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Okay, thanks for the help. I don't know what I did wrong, but I have a feeling I misplaced a decimal, because I tried it again and got pretty much...

8 Replies

2935 Views

Last post by saefroch
Sat Jan 29, 2011 10:24 am
SketchUp questions and new gun preview

Last post by inonickname
Replies: 5
by metalmeltr » Fri Dec 31, 2010 5:42 pm

First post

I am new to sketchup as of last night. Using model in the 3d warehouse i have partially modelled my newest creation. i am now having difficulties...

Last post

Search :roll:

Could have sworn I wrote this for a reason :roll:

Look a few posts down, I cover how to remove sections from curved surfaces by...

5 Replies

5171 Views

Last post by inonickname
Mon Jan 24, 2011 9:41 pm
Electronics Help

Last post by Technician1002
Replies: 25
by Davidvaini » Tue Jan 18, 2011 3:19 am
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Hey guys, I am working on a project with the Arduino.

The Arduino has pins that output ~5v at ~40mA. I want to be able to control a motor that...

Last post

Almost any MOSFET used in the inverter power section of a high power car stereo amp will work fine. They are designed for low voltages (12 volt car...
25 Replies

11341 Views

Last post by Technician1002
Sun Jan 23, 2011 10:58 am
2 years of Spudding in 1 minute

Last post by Brian the brain
Replies: 22
by MrCrowley » Sat Jan 15, 2011 5:58 am
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96 individual video clips from the last two years. Only includes my larger bore cannons and what videos I still had on my computer in original form....

Last post

I especially like the part where it goes BOOM..

:roll:

So...

Yeah..great vid!

:D
22 Replies

11881 Views

Last post by Brian the brain
Sat Jan 22, 2011 4:20 pm
Tools redefined

Last post by FighterAce
Replies: 35
by jackssmirkingrevenge » Fri Feb 01, 2008 3:42 am
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I came across this little gem I had posted on spudtech, worth reposting :D

TOOLS REDEFINED:

1. DRILL PRESS: A tall upright machine useful for...

Last post

Pegboard: Used for hanging items suitable for maiming workers around the nearby workbench
35 Replies

18766 Views

Last post by FighterAce
Sat Jan 22, 2011 1:21 pm
Male threads sheared off inside cross- Fixed

Last post by jackssmirkingrevenge
Replies: 26
by saefroch » Mon Oct 25, 2010 2:54 pm
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The title says it all... I was tightening on the barrel getting ready to film a shot at 1,000psi when this happened. Yeah...

Buying another cross...

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The only bit of that page I found interesting was the notion that airguns lose power when you charge the reservoir too high.

Somewhat off-topic and...
26 Replies

8005 Views

Last post by jackssmirkingrevenge
Thu Jan 20, 2011 11:54 pm
Electrolysis project thread

Last post by saefroch
Replies: 27
by saefroch » Sun Jan 02, 2011 11:46 am
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I have no idea where this thread should go, but it seems to fit here since it's rather theoretical for now. One of the miscellaneous gifts I got for...

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chromium VI Wouldn't that be Chromium(VI)? :roll:

I am hoping to generate enough hydrogen to use it in a pneumatic. The apparatus might be a little...
27 Replies

17674 Views

Last post by saefroch
Mon Jan 03, 2011 5:32 pm
steel bbs

Last post by ilovefire
Replies: 4
by ilovefire » Wed Dec 29, 2010 8:39 pm

First post

thought this seemed like a good ball bearing supplier, when i get some money i think i will get some from them

Last post

good to see i could help someone!

4 Replies

1963 Views

Last post by ilovefire
Fri Dec 31, 2010 12:29 am
Potato Cannon Newbie in Need

Last post by saefroch
Replies: 3
by Rookie » Thu Dec 30, 2010 5:57 pm

First post

Right before i went on vacation, my mom decided wouldn't it be cool to build a potato cannon?
Once we got there, my mom spent the morning looking...

Last post

Have a look through here if you haven't already. It'll give you some ideas for improvements and future builds.

I wouldn't use lighter fluid as a...

3 Replies

2441 Views

Last post by saefroch
Thu Dec 30, 2010 11:04 pm
Micro lathe - Where to start

Last post by ilovefire
Replies: 17
by qwerty » Mon Dec 27, 2010 11:17 am
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Hey guys,
I've been really interested in lathes recently and have now considered buying one.
Of course, the large, full size ones are way above my...

Last post

what about a full size vac motor? i think we might have a spare one somewhere ill have to see if my mum will let me take it apart... again... :lol:
17 Replies

7596 Views

Last post by ilovefire
Tue Dec 28, 2010 6:44 am
Propane Cylinder Conversion for Pneumatic Uses

Last post by metalmeltr
Replies: 15
by Big-mac » Fri Jul 06, 2007 2:01 pm
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WARNING: THIS IS DANGEROUS DONT BE STUPID. PROPANE IS DANGEROUS IF HANDLED WRONG.

How much pressure does propane generate you say? It depends on the...

Last post

Found this today and it concerncens me on the safety of using these things.
Information about why DOT prohibits refilling these cylinders.
15 Replies

18487 Views

Last post by metalmeltr
Mon Dec 27, 2010 9:10 am
Difficulties associated with large diameter pcv

Last post by metalmeltr
Replies: 8
by metalmeltr » Fri Dec 24, 2010 8:04 am

First post

I recall a while ago discussions of the troubles and possible solutions to the problem of fully seating solvent welded fitting in large diameter PVC...

Last post

Not the best tutorial ever but you get the idea.

8 Replies

3542 Views

Last post by metalmeltr
Sun Dec 26, 2010 7:12 pm
I do not like the looks of this company

Last post by metalmeltr
Replies: 2
by metalmeltr » Wed Dec 22, 2010 11:10 am

First post

Doesn't look like more than a rip off and a sales pitch.

The FAQ are quite cocky at some points.

Last post

OK case closed no more comments, someone lock this

2 Replies

1285 Views

Last post by metalmeltr
Wed Dec 22, 2010 3:05 pm
Moah power ?

Last post by Selador
Replies: 37
by Selador » Fri Dec 10, 2010 2:36 pm
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You would think that one could find this sort of info in a simple search, but I have been unable to find anything that has been helpful...

Here is...

Last post

The shot penetrated easily. It went through the plywood. Through a piece of pipe, about 4 feet behind that. Through a fiberglass window cover....
37 Replies

12636 Views

Last post by Selador
Wed Dec 22, 2010 12:29 pm
Liquid C02 Cartidge?

Last post by DYI
Replies: 4
by kjjohn » Fri Dec 17, 2010 8:07 pm

First post

Would it be possible to have a cartridge filled with liquid C02, and use perhaps an electrothermal-type effect to vaporize almost all of the liquid...

Last post

Firstly, thanks go to Fnord for posting that diagram here, because I was going to link to it in my response otherwise. I'll try to go against the...

4 Replies

4840 Views

Last post by DYI
Sat Dec 18, 2010 4:06 pm
cheap-o decibel meters

Last post by Technician1002
Replies: 16
by jackssmirkingrevenge » Tue Dec 14, 2010 6:48 pm
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Has anyone got any experience with decibel meters in this range ?

It would be good to have some form of empirical measurement of sound levels as...

Last post

Radio Shack meters have less features for more money.
Cheap, yes. Inexpensive, no.

Here is their two offerings.

You can download the PDF manual...
16 Replies

7281 Views

Last post by Technician1002
Sat Dec 18, 2010 10:25 am
QDV Continued

Last post by cfb_rolley
Replies: 21
by jagerbond » Tue Dec 14, 2010 2:47 am
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So Jagerbond, how soon are you going to be making QDV valves?

We've made a couple already.. The most notable is in the VARGAS cartridges....

Last post

Ahh thanks for pointing me in the right direction! Well from what I see, it's a cartridge that is a valve and chamber in one, which dumps quickly...
21 Replies

8298 Views

Last post by cfb_rolley
Thu Dec 16, 2010 12:47 am
Mechanical/Spring Powered Cannon

Last post by Technician1002
Replies: 11
by Dr meat201 » Tue Dec 14, 2010 5:34 pm

First post

Has anyone here seen a good mechanically powered or spring powered cannon? i.e. elastic or springs to store potential energy. My friend and i got to...

Last post

You could always use combustion to power the piston ;)

Which is how a 2-stage gas gun works.

It is not in the immediate future. I have a 2 stage...

11 Replies

12509 Views

Last post by Technician1002
Wed Dec 15, 2010 1:44 pm
Best Shot Contest Voting

Last post by PCGUY

by PCGUY » Tue Dec 14, 2010 9:35 pm

SpudFiles members have formed the
SpudFiles Fall 2010 Best Shot Contest!

Who has the most impressive video?

Please visit the contest thread to...

0 Replies

4346 Views

Last post by PCGUY
Tue Dec 14, 2010 9:35 pm
Fall 2010 Best Shot Contest - Official Thread

Last post by Technician1002
Replies: 144
by SpudBlaster15 » Wed Sep 15, 2010 6:09 pm
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This is the official thread for the Fall 2010 Best Shot contest. All video submissions are to be made in this thread, and you are also free to...

Last post

From the poll counts, I don't think Sureshot will be getting a custom piston. Last time I looked, it seems like the front runners are MrCrowley and...
144 Replies

70225 Views

Last post by Technician1002
Tue Dec 14, 2010 2:02 am

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