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 71 users online :: 4 registered, 0 hidden and 67 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Spud Cannon Attempt Failed

A place to ask general spud cannon related questions.
Sponsored 
  • Author
    Message

Spud Cannon Attempt Failed

Unread postAuthor: lax1089 » Tue Sep 26, 2006 7:36 pm

I recently put together a PVC Sched 40 spud cannon following one of the guides on this site. I used a 1.5" diameter barrell which is about 3.5 feet long. The combustion chamber (attached to the barrell through the reducer) is about a foot long and its diamter is 3". The other end of the combustion chamber has a "female" piece that has threads on the inside. The "male" cap screws one to the "female" piece enclosing the combustion chamber. I used PVC Cement Glue to fasten the pieces together.


For the ignition system, I used a BBQ igniter. I attached a wire to each charge (posative and negative) and then attached the wires to screws which i screwed in the combustion chamber (making sure the ends of the screws inside the combustion chamber were about 1/6 of an inch apart. The spark between the two screws which occurs every time I press the igniter button leads me to believe that is not the problem.

The fuel I am using is White Rain Extra Hold Aerosol Hair Spray. I spray that in the combustion chamber for about 5 or 6 seconds, screw on the male peice so it is tight, and press the igniter BUT NOTHING HAPPENS. The potato is in the barrell about 4 inches from the reducer by the way.

Ive spent a lot of time on this and I really would like to get it working so any tips or advice would help. Thank you.
  • 0


lax1089
Private
Private
 
Posts: 3
Joined: Tue Sep 26, 2006 7:22 pm
Reputation: 0

Unread postAuthor: pyromanic13 » Tue Sep 26, 2006 7:37 pm

try spraying LESS in.
  • 0

Movie dialogue: "The good die first."
Tom: "But most of us are morally ambiguous, which explains our random dying
patterns."

pyromanic13
Brigadier General
Brigadier General
 
Posts: 913
Joined: Wed Oct 19, 2005 7:54 pm
Reputation: 0

Unread postAuthor: lax1089 » Tue Sep 26, 2006 7:51 pm

holy crap it worked i love you and if i was a lady i would make sweet love to you
  • 0


lax1089
Private
Private
 
Posts: 3
Joined: Tue Sep 26, 2006 7:22 pm
Reputation: 0

Unread postAuthor: benstern » Tue Sep 26, 2006 9:22 pm

^^^^WOW^^^
that was extremely gay
  • 0

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

Unread postAuthor: ProfessorAmadeus » Tue Sep 26, 2006 9:28 pm

Oh ben i will make sweet love to you even though im a man.
EWWW THATS GROSS!!! :(
  • 0

Insomniac wrote:Hey why am I a goose???? Why not somthing a little more awe inspireing, like an eagle or something? LOL

SOO CUTE!! OMG!! I COULD JUST LICK YOU!!
User avatar
ProfessorAmadeus
Brigadier General
Brigadier General
 
Posts: 1046
Joined: Fri Apr 28, 2006 5:39 pm
Location: texas
Reputation: 0

Unread postAuthor: MrCrowley » Tue Sep 26, 2006 9:37 pm

well your sig does say you like nuts....just what kind of nuts are you into these days? :lol:
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: ProfessorAmadeus » Tue Sep 26, 2006 9:40 pm

Pecans, Walnuts, Peanuts, cashews.
  • 0

Insomniac wrote:Hey why am I a goose???? Why not somthing a little more awe inspireing, like an eagle or something? LOL

SOO CUTE!! OMG!! I COULD JUST LICK YOU!!
User avatar
ProfessorAmadeus
Brigadier General
Brigadier General
 
Posts: 1046
Joined: Fri Apr 28, 2006 5:39 pm
Location: texas
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: frankrede » Tue Sep 26, 2006 11:22 pm

Haha guys obviously no has read my signature:D
5-6 seconds of spray is too much, try just a spritz, but obviously you did.
  • 0

Current project: Afghanistan deployment
User avatar
frankrede
Lieutenant General
Lieutenant General
 
Posts: 3220
Joined: Thu Jul 20, 2006 9:47 pm
Reputation: 0

Unread postAuthor: Flying_Salt » Sat Oct 21, 2006 10:29 am

Yeah that's way too much hairspray, that'll gum it up pretty good. I used to have the "magic hairspray touch" so I would always put in the exact amount oh hairspray, but now it doesn't seem to work. I would put in one second, pause, then another second. One day it worked every time, but now I can barely get my gun to fire.
  • 0

User avatar
Flying_Salt
Brigadier General
Brigadier General
 
Posts: 779
Joined: Mon Oct 09, 2006 4:57 pm
Location: Texas
Reputation: 0

Unread postAuthor: MisterSteve124 » Sat Oct 21, 2006 11:38 am

My cannon needs 10 full seconds of spray for it to shoot. So the less is better doesn't always work. But thats probably because its over 7 feet long.
  • 0

User avatar
MisterSteve124
Colonel
Colonel
 
Posts: 702
Joined: Sat Feb 11, 2006 10:11 pm
Location: West Chester, PA
Reputation: 0

Unread postAuthor: frankrede » Sat Oct 21, 2006 12:17 pm

Use dual ignition.
Have a lantern lighter and a barbeque pzeizo installed.
So if one fails you can try the other.
With my latern lighter i can use any fuel mixture and get it to fire.
  • 0

Current project: Afghanistan deployment
User avatar
frankrede
Lieutenant General
Lieutenant General
 
Posts: 3220
Joined: Thu Jul 20, 2006 9:47 pm
Reputation: 0

Return to General Spud Cannon Related

Who is online

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

Reputation System ©'