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 66 users online :: 3 registered, 0 hidden and 63 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

Registered users: Bing [Bot], Google [Bot], MSNbot Media based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Hard Foam

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
Sponsored 
  • Author
    Message

Hard Foam

Unread postAuthor: Atlantis » Mon Jul 10, 2006 2:31 pm

I was wondering if the foam that hardens is good for short range ammo, or will it be too light? What if I added a nail or something to it for weight? I plan on filling a 3 foot section of 3/4" PVC with foam and chopping the foam into small pieces once it hardens.
  • 0

"There isn't a problem in the world that can't be solved by the proper application of explosives"
User avatar
Atlantis
Brigadier General
Brigadier General
 
Posts: 955
Joined: Sat Sep 03, 2005 10:26 pm
Location: Florida
Reputation: 0

Unread postAuthor: Andrew52 » Mon Jul 10, 2006 2:53 pm

well i think you would want to grease the pipe thouroly with some before using the foam and i think i could drill holes and hot glue sinkers or some kind of weights in there otherwise i tihnk it would be to light
  • 0

User avatar
Andrew52
Sergeant Major
Sergeant Major
 
Posts: 196
Joined: Sun Feb 26, 2006 5:01 pm
Reputation: 0

Unread postAuthor: benstern » Mon Jul 10, 2006 3:23 pm

you mean like Great Stuff?
Image
  • 0

User avatar
benstern
Donating Member
Donating Member
 
Posts: 909
Joined: Wed Sep 21, 2005 8:24 pm
Reputation: 0

Unread postAuthor: )DEMON( » Mon Jul 10, 2006 3:30 pm

Can that foam be machiened after it sets?
  • 0

Forever dreaming...
User avatar
)DEMON(
Major General
Major General
 
Posts: 1391
Joined: Sun Mar 12, 2006 1:22 pm
Location: Johannesburg South Africa
Reputation: 0

Unread postAuthor: Mihlrad » Mon Jul 10, 2006 4:05 pm

i wonder if you could use that stuff to make a piston.
  • 0

User avatar
Mihlrad
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 467
Joined: Tue May 23, 2006 6:45 pm
Reputation: 0

Unread postAuthor: Atlantis » Mon Jul 10, 2006 9:59 pm

Well it would'nt exactly be machining it, basically just saw it into pieces. 6 bucks might be a little expensive though, there's probably a cheaper brand. You might be able to use it for a piston.
  • 0

"There isn't a problem in the world that can't be solved by the proper application of explosives"
User avatar
Atlantis
Brigadier General
Brigadier General
 
Posts: 955
Joined: Sat Sep 03, 2005 10:26 pm
Location: Florida
Reputation: 0

Unread postAuthor: carlbelcher » Mon Jul 10, 2006 11:09 pm

You could probably use a piece of PVC pipe as a mold. It would make a great sabot and if you wanted to use it as a projectile you could just put something in the mold with it and let it harden around it.

Just make sure you give it plenty of room to expand, that stuff has been known to rip apart door frames and walls.
  • 0

Is your Google.com Broken?!
User avatar
carlbelcher
Donating Member
Donating Member
 
Posts: 532
Joined: Mon Jun 12, 2006 6:54 pm
Reputation: 1

Sponsored

Sponsor
 


Unread postAuthor: Atlantis » Mon Jul 10, 2006 11:44 pm

I was gonna leave both ends of the mold open, I might have to do small sections at a time depending on how fast it hardens.
  • 0

"There isn't a problem in the world that can't be solved by the proper application of explosives"
User avatar
Atlantis
Brigadier General
Brigadier General
 
Posts: 955
Joined: Sat Sep 03, 2005 10:26 pm
Location: Florida
Reputation: 0

Unread postAuthor: benstern » Tue Jul 11, 2006 12:56 am

yeah it would alo be fun to shoot the CAN at a wall and see it all harden
  • 0

User avatar
benstern
Donating Member
Donating Member
 
Posts: 909
Joined: Wed Sep 21, 2005 8:24 pm
Reputation: 0

Unread postAuthor: rna_duelers » Tue Jul 11, 2006 7:25 am

Thats would be good for trying to get max velocity out of a gun,such as a hybrid really light but looses energy quickly just enough time to chrony it probably and make sure u use very little of it,that stuff fills up alot of space from a tiny squirt i remember my dad was making moulds for lamp shades and he half filled one and it like coverd out bench in the stuff and its quite hard on the outside and hard to rip off stuff.
  • 0

Image
User avatar
rna_duelers
Major General
Major General
 
Posts: 1740
Joined: Mon Sep 26, 2005 7:07 am
Location: G-land Australia
Country: Australia (au)
Reputation: 1

Unread postAuthor: DonTheLegend » Tue Jul 11, 2006 3:50 pm

I've tried making sabots with this stuff, and you have to leave at least one end open. Also, use a lot less than u think and do it in layers. We tried doing a 3" x 12" sabot all at once and it just pushes itself out of the pipe. Use WD-40 or something to coat the sides otherwise it'll stick, and it just ruins the pipe.
  • 0

User avatar
DonTheLegend
Sergeant
Sergeant
 
Posts: 99
Joined: Fri Jan 06, 2006 6:32 pm
Reputation: 0

Unread postAuthor: Atlantis » Tue Jul 11, 2006 7:25 pm

Thanks for all the advice, I might get some soon because I have to fill some holes in my grill to get rid off the wasps in it.
  • 0

"There isn't a problem in the world that can't be solved by the proper application of explosives"
User avatar
Atlantis
Brigadier General
Brigadier General
 
Posts: 955
Joined: Sat Sep 03, 2005 10:26 pm
Location: Florida
Reputation: 0

Unread postAuthor: schmanman » Tue Jul 11, 2006 7:32 pm

yeah it would alo be fun to shoot the CAN at a wall and see it all harden


It explodes and sends foam like 40 feet up into the air. IT IS SWEET!!!!!!
  • 0

Persistence is a measure of faith in yourself
User avatar
schmanman
Major General
Major General
 
Posts: 1685
Joined: Sat Mar 25, 2006 12:28 pm
Location: Michigan,U.S.A
Country: United States (us)
Reputation: 0

Unread postAuthor: SpudStuff » Tue Jul 11, 2006 8:01 pm

just think paintballs with the two part foam mix seperated by a thin layer of plastic. when you shoot some thing it bursts and mixes
  • 0

User avatar
SpudStuff
Major General
Major General
 
Posts: 1410
Joined: Sat Dec 10, 2005 3:55 pm
Location: Cupertino, California
Reputation: 1

Unread postAuthor: Darkerweb12 » Mon Jul 17, 2006 8:50 pm

Atlantis wrote:Thanks for all the advice, I might get some soon because I have to fill some holes in my grill to get rid off the wasps in it.


Haha, kinda off topic now, but our satelite wasn't getting any channels for the longest time, and when the guy finally came we had FOUR wasp nests inside the receiver! FOUR!
  • 0


Darkerweb12
Staff Sergeant
Staff Sergeant
 
Posts: 106
Joined: Sat Aug 20, 2005 10:03 pm
Location: Madison, Wisconsin
Reputation: 0

Next

Return to Construction Materials/Ammo Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], MSNbot Media

Reputation System ©'