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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

611321 Views

Last post by quinn whitsitt
Fri Feb 09, 2024 2:38 pm
Mug Shot Pics!!

Last post by jakethebeast
Replies: 396
by Carlman » Wed Feb 20, 2008 12:14 am
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Hey all,

Saw a good thread on another forum and though id start the same kind of one here as well. Its basically to post your ugly mug on here so...

Last post

Last night at my friends, some alcohol was involved :D
396 Replies

464044 Views

Last post by jakethebeast
Sun Sep 22, 2013 8:00 am

Topics

Valve that vents when the pressure of another inlet is high

Last post by btrettel
Replies: 31
by btrettel » Tue Sep 08, 2009 10:39 am
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I'm looking for a valve that will vent (or redirect as that can be used to vent) one inlet when another inlet's pressure reaches a certain (ideally...

Last post

That's how it should be done as far as I can tell. You might have to do something more complicated with the flow control valve to increase the cycle...
31 Replies

6129 Views

Last post by btrettel
Sat Sep 12, 2009 8:33 am
Tactical slingshot

Last post by spudamine
Replies: 18
by spudamine » Sat Sep 05, 2009 3:28 pm
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First off, why have I called this a tactical slingshot?
1) It's got a laser
2) I painted the handle black
3) I'm feeling especially full of sh*t...

Last post

I'm working on the anchor point, at the moment I'm going back to my ear, this is about as far as I can go anyway but your draw looks insane 8)
I'm...
18 Replies

8104 Views

Last post by spudamine
Tue Sep 08, 2009 3:52 pm
Workspaces!

Last post by jrrdw
Replies: 3
by Willdebeers » Tue Sep 08, 2009 10:46 am

First post

As a get-to-know-you-better experiment, I (personally) think that we should post what we have to work with, so the rest of us can see everyones work...

Last post

Oops, didn't see that :lol: . I'll copy and paste it there too.

Now you know.

3 Replies

1372 Views

Last post by jrrdw
Tue Sep 08, 2009 1:33 pm
Pneumatic Rocket Parachute Deployment

Last post by jackssmirkingrevenge
Replies: 6
by Lentamentalisk » Mon Sep 07, 2009 11:32 pm

First post

Alright everyone, I have a slightly abnormal concept I am working on.
I am trying do design a cannon to be put inside a rocket, to pop off the nose...

Last post

Let me dig it up and take some pics :)

edit: could only find the barrel, epoxied to a male fitting. There are two fine brass tubes set into the...

6 Replies

4932 Views

Last post by jackssmirkingrevenge
Tue Sep 08, 2009 10:43 am
Its not a spudgun

Last post by wngovr
Replies: 13
by wngovr » Mon Sep 07, 2009 12:50 am

First post

A while back I had to make one of these. As you can see its got spudfiles all over it. Can you guess what it is? Shouldn't be too hard.

Last post

I started to have fun with it once, but learned real quick I needed some sort of remote to fire this thing. We put an orange in it. filled it to 120...

13 Replies

4313 Views

Last post by wngovr
Mon Sep 07, 2009 11:52 am
Homemade Lathe Mk.2 (with video)

Last post by Technician1002
Replies: 2
by skyjive » Fri Sep 04, 2009 5:33 pm

First post

Hi all. So a while back I posted my first attempt at a homemade lathe here. Well not to grow long-winded, it turned out to be pretty useless for...

Last post

Well done.. Two grooves.. A QDV perhaps?

:wav:

2 Replies

2674 Views

Last post by Technician1002
Fri Sep 04, 2009 7:16 pm
Audacity audio from slingshot

Last post by jimmy101
Replies: 35
by boyntonstu » Mon Aug 31, 2009 12:33 pm
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First post

Using a wireless mic to Audacity in my PC I got this audio of a marble shot.

The first blip is the firing, the second, the hit, and the third a...

Last post

This is a non contact sensor. No component of the coil or magnet move. Only the movement of the foil target is detected. Please review the style of...
35 Replies

8520 Views

Last post by jimmy101
Fri Sep 04, 2009 3:40 pm
My trike

Last post by smiley_666
Replies: 4
by jor2daje » Tue Sep 01, 2009 7:09 pm

First post

I recently bought a cheap harbor freight welder just to try my hand at welding and I have built a welding cart, and this tricycle. The tricycle was...

Last post

put the castors on more of an angle, that way your body weight will help straighten up the rear wheels

4 Replies

1918 Views

Last post by smiley_666
Thu Sep 03, 2009 9:00 am
air tank

Last post by Technician1002
Replies: 1
by jon_89 » Tue Sep 01, 2009 11:13 pm

First post

I am looking for about a 2.5 gallon air tank and cant find one for a reasonable price. Anybody know were I can get one?

Last post

I am looking for about a 2.5 gallon air tank and cant find one for a reasonable price. Anybody know were I can get one?

Find an obsolete propane...

1 Replies

1652 Views

Last post by Technician1002
Tue Sep 01, 2009 11:39 pm
reflex red dot sight

Last post by Technician1002
Replies: 11
by raptorforce » Sun Aug 30, 2009 1:47 am

First post

how do these work-diagrams are helpful.... and would it be possible to make one?if so how?

this kind of sight:

um%3D1

its the 5 one from the top

Last post

As I understand it, there is an LED which faces away from your eye. Somewhere forward of it, there is a lens. The lens has a coating so that it...

11 Replies

3512 Views

Last post by Technician1002
Mon Aug 31, 2009 11:59 pm
FAIL - 12 gram launcher

Last post by psycix
Replies: 11
by PVC Arsenal 17 » Fri Aug 28, 2009 7:09 pm

First post

Some time ago I had the idea of making a 12 gram C02 cartridge launcher. The idea was simple, it just involved a spring loaded bolt with a nail on...

Last post

Yes, I am referring to the rockets made out of soda bottles filled with water and compressed gas.

11 Replies

4445 Views

Last post by psycix
Mon Aug 31, 2009 5:07 am
ZnO aerogel???

Last post by jimmy101
Replies: 7
by ramses » Fri Aug 28, 2009 4:33 pm

First post

Okay, so I was casting a part out of zinc (pennies) on my parent's grill, and on the stir rod, some metal stuck. While I waited for the mold to cool,...

Last post

Zinc pennies may contain something other than just the zinc core and the copper skin. If you file the edge off a penny, cutting through the copper...

7 Replies

2068 Views

Last post by jimmy101
Sun Aug 30, 2009 3:58 pm
Drying out the inside of my fire extinguisher.

Last post by Technician1002
Replies: 4
by Biopyro » Sun Aug 30, 2009 10:18 am

First post

I have a 2kg dry powder extinguisher which has a fair amount of water in it (I planned to use it as a water cannon). I emptied it as much as I could...

Last post

Air circulation through a valve is very poor from diffusion. Active ventilation will need to be provided.

A dry chemical extinguisher has a siphon...

4 Replies

1452 Views

Last post by Technician1002
Sun Aug 30, 2009 11:15 am
Slow motion spuddin

Last post by ramses
Replies: 20
by qwerty » Mon Aug 24, 2009 2:19 pm
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For my birthday in a few months time im looking to get a slow-mo camera for some slo-motion shots. Ive been looking at the Casio EX F1 and they seem...

Last post

If you can settle for stills, get yourself a nice DSLR, and use a triggered flash to capture the action.

not my flikr, not my pictures, but a good...
20 Replies

4541 Views

Last post by ramses
Sat Aug 29, 2009 4:12 pm
Digital graphics editing

Last post by Technician1002
Replies: 9
by inonickname » Thu Aug 27, 2009 8:36 am

First post

Anyone else into digital image manipulation with programs such as photoshop? Hopefully this won't be ordered to theopia land. I guess cannon artwork...

Last post

OK, here is one of my attempts at a little abstract. Enjoy.

9 Replies

2721 Views

Last post by Technician1002
Fri Aug 28, 2009 7:43 pm
Taming the Thera Band Silver Slingshot

Last post by boyntonstu
Replies: 2
by boyntonstu » Thu Aug 27, 2009 10:39 am

First post

BoyntonStu

Last post

Nice principle, great idea, however un ergonomical and huge. Make a smller version that is hand mounted and that doesn't require as much turning,...

2 Replies

2278 Views

Last post by boyntonstu
Thu Aug 27, 2009 4:10 pm
So there is all these threads on sling shots...

Last post by THUNDERLORD
Replies: 10
by hi » Sun Aug 23, 2009 9:42 pm

First post

Just out of curiosity, how many people here have used a sling? I'm not talking about a sling shot that has a rubber band, but one that is made of...

Last post

Your math will never work properly when you do not use a consistent unit of measurement.

In one case you say 1 inch diameter and the other a radius...

10 Replies

3831 Views

Last post by THUNDERLORD
Wed Aug 26, 2009 3:48 pm
Long Casting 3 oz 700 feet!

Last post by Technician1002
Replies: 10
by boyntonstu » Mon Aug 24, 2009 1:13 pm

First post

Surfcasting is a casting technique which separates the surfcaster from the ordinary pier or boat fisherman. Specialized, two-handed casting...

Last post

it was at sports authority
it was a really large warehouse.

I'm surprised someone hasn't linked to a fishing pole like it. Someone at Maker Fair...

10 Replies

3336 Views

Last post by Technician1002
Tue Aug 25, 2009 6:53 pm
What schools ya go to!

Last post by jrrdw
Replies: 5
by nosgroth » Tue Aug 25, 2009 12:01 pm

First post

I go to ACS International. Ranked 30th best IB school in the UK!...unfortunatley im too stupid to do full IB.

Last post

This thread went to the school of www.theopia.com. :D or will as soon as someone puts it there.

5 Replies

1622 Views

Last post by jrrdw
Tue Aug 25, 2009 1:33 pm
railgun V2 project

Last post by jonot05
Replies: 3
by rp181 » Thu Aug 20, 2009 7:48 pm

First post

The revision 2 Railgun will incorporate several major changes, and several minor changes.
Major updates:
-The capacitor bank will be expanded by 22...

Last post

What are the specs of the capacitors and where did you get them?

3 Replies

1534 Views

Last post by jonot05
Tue Aug 25, 2009 5:27 am
Joerg's 15 mm Steel Balls

Last post by jonnyboy
Replies: 15
by boyntonstu » Mon Aug 24, 2009 6:14 am
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I suggest that we all use the same 15mm steel ball as the standard projectile for our slingshot ballistic tests.

Perhaps the same projectile for...

Last post

@jonnyboy: It's simply dividing kinetic energy by barrel volume - hardly fancy maths. It basically gives you an idea of how powerful a cannon is for...
15 Replies

3933 Views

Last post by jonnyboy
Mon Aug 24, 2009 1:24 pm
Coilgun Projectile Stabilization

Last post by strangers
Replies: 37
by strangers » Wed Aug 19, 2009 1:40 pm
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I'm building a multi-stage coilgun for a science fair project, and am about to add a third stage to it and was wondering if spin could be applied to...

Last post

Well, it doesn't matter if I could spin stabilize it or not for the time being cause my dremel made a liar out of me, I can hollow out the base of...
37 Replies

13780 Views

Last post by strangers
Mon Aug 24, 2009 12:35 pm
been in weird mood this made me laugh post what you think

Last post by cannon monkey

by cannon monkey » Sat Aug 22, 2009 8:01 pm

www.theopia.com

Edited by jrrdw.

0 Replies

1867 Views

Last post by cannon monkey
Sat Aug 22, 2009 8:01 pm
Darn you Jorg!

Last post by inonickname
Replies: 22
by inonickname » Fri Aug 21, 2009 9:28 am
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Well, talk about the invasion of the 'friggen slingshots.. They're everywhere..

So thanks to Jorg (and Boyntonstu to an extent) I'd set out on...

Last post

Yep..It's anylitical grade, and lives next to the 70% HF, sulfuric and HNO3.. Excellent for BP slurry + cleaning during synthesis.

I'm also into...
22 Replies

5737 Views

Last post by inonickname
Sat Aug 22, 2009 5:25 am
modifying my air compressor

Last post by POLAND_SPUD
Replies: 33
by FORE!!!! » Wed Aug 19, 2009 2:25 am
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well i was wondering to myself if there is a way of modifying my air compressor so it fills above a missely 100psi which is pethetic considering the...

Last post

I've seen unexploded workshops that look much messier true

Besides, for all I know the lady is saying And once again, Jozef Kowalski is crowned...
33 Replies

5248 Views

Last post by POLAND_SPUD
Wed Aug 19, 2009 1:52 pm

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