Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 40 users online :: 5 registered, 0 hidden and 35 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Majestic-12 [Bot], Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Triple Thunder - Noise Cannons

Built a combustion cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
Sponsored 
  • Author
    Message

Unread postAuthor: starman » Mon Jul 07, 2008 1:10 pm

pimpmann22 wrote:Now I'm wondering how you constructed the 4" male adapter on back. The 4" male adapter itself doesn't look ordinary, plus there is no hex on the larger bushing.


Maniac wrote:Same question as pimpman what is that strange adapter setup.


It's a 4" Male threaded/4" Socket - 4" spig/2" socket reducer bushing - 2" spig/1" Female threaded reducer bushing - 1" iron close nipple - 1" Female threaded pvc ball valve.

The PVC supplier doesn't mold the hex on this particular 4"/2" reducer. It fits in deep and flush.

Pimp, Maniac, also thanks for the comments!

magnum9987 wrote:Absolutely Beautiful! Jesus Christ, you now have some competition :D


Thanks for the compliment. While I appreciate your enthusiasm, I do strenuously object to the comparison. No way will I ever compete!
  • 0

Last edited by starman on Tue Jul 08, 2008 10:43 am, edited 2 times in total.
User avatar
starman
Donating Moderator
Donating Moderator
 
Posts: 3041
Joined: Wed Dec 12, 2007 12:45 am
Location: Simpsonville, SC
Reputation: 0

Unread postAuthor: SpudFarm » Mon Jul 07, 2008 1:14 pm

freaking god!!
that is so nice that it is impossible to explain!! i should have got you to make a ignition system for UPGBH10x :P (also called Larda)
  • 0

"Made in France"
- A spud gun insurance.
User avatar
SpudFarm
Donating Member
Donating Member
 
Posts: 2563
Joined: Sat Nov 04, 2006 9:39 am
Location: Norway Trondheim area
Reputation: 0

Unread postAuthor: kostaki » Mon Jul 07, 2008 2:46 pm

Those cannons are so nice its incredible from the universal fuel meter to the incredible electronic ignition i applaud you on a job well done and hope to see another
  • 0

User avatar
kostaki
Private First Class
Private First Class
 
Posts: 32
Joined: Sat Feb 09, 2008 1:30 am
Location: Amherst, New york
Reputation: 0

Unread postAuthor: THUNDERLORD » Mon Jul 07, 2008 4:08 pm

Dang! :x Finally get to see them, and some pics aren't showing up and no sound on this computer I'm on.
I'll be sure and check on my other computer soon.
What I can see looks interesting too!

BTW, I really like stuff with "Thunder" In the name! 8)
Can't wait to hear it in vid!
  • 0

-----SPEED,STRENGTH, AND ACCURACY.-----
"Procrastination" is five syllables for "Sloth".
Theopia 8)
Born To Be Alive!

THUNDERLORD
Major General
Major General
 
Posts: 1264
Joined: Fri Mar 28, 2008 1:42 pm
Reputation: 0

Unread postAuthor: starman » Mon Jul 07, 2008 6:07 pm

THUNDERLORD wrote:Dang! :x Finally get to see them, and some pics aren't showing up and no sound on this computer I'm on.
I'll be sure and check on my other computer soon.
What I can see looks interesting too!

BTW, I really like stuff with "Thunder" In the name! 8)
Can't wait to hear it in vid!


The picture links are fine..I just checked them. There was probably something up with the connection you were on.

I hope you won't be too dissappointed...as is typical with video cameras the audio is highly compressed during recording so the you're unlikely to be very impressed by what you hear in the Youtube.

I have a sound db meter and am considering taking a video of the meter in fast peak mode during a shot. Trust me, these things are very loud. Shooting in warm humid summer time night air seems to sound the best :)
  • 0

User avatar
starman
Donating Moderator
Donating Moderator
 
Posts: 3041
Joined: Wed Dec 12, 2007 12:45 am
Location: Simpsonville, SC
Reputation: 0

Unread postAuthor: starman » Tue Jul 08, 2008 9:48 am

daberno123 wrote:Again nice work, but you left out blue in your paintjob :wink:


The power switch has a super bright blue LED in it...does that count...?.. :wink:
  • 0

User avatar
starman
Donating Moderator
Donating Moderator
 
Posts: 3041
Joined: Wed Dec 12, 2007 12:45 am
Location: Simpsonville, SC
Reputation: 0

Unread postAuthor: brogdenlaxmiddie » Tue Jul 08, 2008 10:02 am

starman wrote:
daberno123 wrote:Again nice work, but you left out blue in your paintjob :wink:


The power switch has a super bright blue LED in it...does that count...?.. :wink:


yes, it very much does :D
  • 0


brogdenlaxmiddie
Colonel
Colonel
 
Posts: 562
Joined: Sun Jul 22, 2007 2:19 pm
Country: United States (us)
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: psycix » Tue Jul 08, 2008 3:32 pm

DAMN thats one hell of a clean build!
And not one, but even three of them!

Very good job! It guess these things makes your ears ring from a long distance!

I might build a burst disk noisemaker too in a while, to scare off the birds that awake me every morning with irritating whistles, or to counter-noise the rest of the residents in this neighborhood here who tend to make a lot of noise these days while rebuilding their gardens.
I was planning to use the largest cam lock I can find and a ridiculously large chamber.
  • 0

Till the day I'm dieing, I'll keep them spuddies flying, 'cause I can!

Spudfiles steam group, join!
User avatar
psycix
Donating Member
Donating Member
 
Posts: 3684
Joined: Mon Jun 25, 2007 7:12 am
Location: The Netherlands
Reputation: 0

Unread postAuthor: hoarp001 » Tue Jul 08, 2008 4:04 pm

Wow those are pretty cool... Are the XLR plugs desigend for DMX?
I could make you up an electronic module so you could fire these from a standard lighting desk for your musical presentations...
  • 0


hoarp001
Corporal
Corporal
 
Posts: 79
Joined: Tue Jul 17, 2007 4:09 pm
Reputation: 0

Unread postAuthor: starman » Tue Jul 08, 2008 8:28 pm

psycix wrote:Very good job! It guess these things makes your ears ring from a long distance!


The shooter in particular. If you're 30 feet away and to the rear you're fine as far as the ear ringing is concerned.

psycix wrote:I might build a burst disk noisemaker too in a while, to scare off the birds that awake me every morning with irritating whistles, or to counter-noise the rest of the residents in this neighborhood here who tend to make a lot of noise these days while rebuilding their gardens.
I was planning to use the largest cam lock I can find and a ridiculously large chamber.


The 3" camlock throws out a mighty blow with these guns. Trust me, as fun as it sounds, I now actually sort-of dread pressing the trigger...even with ear plugs. A stunning shock wave surrounds you in a macabre sort of way... :shock: Don't make them any larger, unless you'll be remotely triggering them

hoarp001 wrote:Wow those are pretty cool... Are the XLR plugs desigend for DMX?
I could make you up an electronic module so you could fire these from a standard lighting desk for your musical presentations...


Thanks for the offer!. It's a DMX/audio standard XLR cable, but I didn't incorporate intelligent DMX communication into the guns....although that would be a wonderful idea. It's a simple fire by shorting pin 2 to pin 3...all of the stun gun triggers are wired to pin 2, +14.4v is on pin 3...voila. The nice thing is the 9v regulators in each stunner that allows them to be externally fired with 14.4v.
  • 0

User avatar
starman
Donating Moderator
Donating Moderator
 
Posts: 3041
Joined: Wed Dec 12, 2007 12:45 am
Location: Simpsonville, SC
Reputation: 0

Unread postAuthor: THUNDERLORD » Tue Jul 08, 2008 8:48 pm

Excellent builds! The other computer I was on only had one pic I could see yesterday.
Wow, so clean too!
Like psycix reminded me, there's just one bird whose call annoys me because I substitute an annoying phrase when I hear it in the morning.
(IDK which particular one though).

BTW, I was watching a show where someone fell off a cruise ship and sharks ate her leg before they could save her :shock:
Made me think an underwater noise maker might've been useful as a shark scare-offer :roll: 8)
  • 0

-----SPEED,STRENGTH, AND ACCURACY.-----
"Procrastination" is five syllables for "Sloth".
Theopia 8)
Born To Be Alive!

THUNDERLORD
Major General
Major General
 
Posts: 1264
Joined: Fri Mar 28, 2008 1:42 pm
Reputation: 0

Unread postAuthor: starman » Tue Jul 08, 2008 8:53 pm

THUNDERLORD wrote:BTW, I was watching a show where someone fell off a cruise ship and sharks ate her leg before they could save her :shock:
Made me think an underwater noise maker might've been useful as a shark scare-offer :roll: 8)


Actually the mythbusters proved that a dolphin in the area, even their robotic dolphin made the sharks shy away from attacking.

I'm sure you could come up with an underwater sonic transducer and frequency range that sharks would be particularly sensitive to...nice idea there... :idea:
  • 0

User avatar
starman
Donating Moderator
Donating Moderator
 
Posts: 3041
Joined: Wed Dec 12, 2007 12:45 am
Location: Simpsonville, SC
Reputation: 0

Unread postAuthor: psycix » Wed Jul 09, 2008 7:37 am

The 3" camlock throws out a mighty blow with these guns. Trust me, as fun as it sounds, I now actually sort-of dread pressing the trigger...even with ear plugs. A stunning shock wave surrounds you in a macabre sort of way... Shocked Don't make them any larger, unless you'll be remotely triggering them

Sounds good! :D


Hey, can you fire one underwater?
  • 0

Till the day I'm dieing, I'll keep them spuddies flying, 'cause I can!

Spudfiles steam group, join!
User avatar
psycix
Donating Member
Donating Member
 
Posts: 3684
Joined: Mon Jun 25, 2007 7:12 am
Location: The Netherlands
Reputation: 0

Unread postAuthor: starman » Wed Jul 09, 2008 10:53 am

psycix wrote:
The 3" camlock throws out a mighty blow with these guns. Trust me, as fun as it sounds, I now actually sort-of dread pressing the trigger...even with ear plugs. A stunning shock wave surrounds you in a macabre sort of way... Shocked Don't make them any larger, unless you'll be remotely triggering them

Sounds good! :D


Hey, can you fire one underwater?


Now there's a thought.... :idea:

The stun gun probes and the stun gun itself are not insulated from the water so I'm thinking you wouldn't want to be anywhere near that thing in the water when triggered. Might be a little like an electric eel... :shock: or a lot actually.

But theoritically, supposing the ignition could be insulated properly. The only thing you would have to change would be the burst disk characteristics to compensate for the new pressure differences under water.

The disks I use are in the 65 psi range, +or - a tad. I can occasionally fully contain a detonation with an 80 - 90 psi disk. A disk for use under water would need to take into consideration the depth at which you were firing. At 10 m deep, the pressure is 15 psi greater than atmospheric pressure. Therefore your disks could be thinner by 15 psi, IF you're shooting at 10 m depth.

Twould being an interesting experiment for sure... :wink:
  • 0

User avatar
starman
Donating Moderator
Donating Moderator
 
Posts: 3041
Joined: Wed Dec 12, 2007 12:45 am
Location: Simpsonville, SC
Reputation: 0

Unread postAuthor: DYI » Wed Jul 09, 2008 10:59 am

The disks I use are in the 65 psi range, +or - a tad. I can occasionally fully contain a detonation with an 80 - 90 psi disk. A disk for use under water would need to take into consideration the depth at which you were firing. At 10 m deep, the pressure is 15 psi greater than atmospheric pressure. Therefore your disks could be thinner by 15 psi, IF you're shooting at 10 m depth.

Twould being an interesting experiment for sure...


Just be sure to take into account how much more efficiently water transmits shockwaves. Remember "shooting fish in a barrel"? You'll want to be above water when you set it off, or at least relatively far away from it.
  • 0

Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.
User avatar
DYI
Lieutenant General
Lieutenant General
 
Posts: 2861
Joined: Sat Jul 07, 2007 8:18 pm
Location: The People's Republic of Canuckistan
Country: Turks and Caicos Islands (tc)
Reputation: 9

PreviousNext

Return to Combustion Cannon Database

Who is online

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Majestic-12 [Bot], Yahoo [Bot]

Reputation System ©'