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 69 users online :: 4 registered, 0 hidden and 65 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

Flat AA battery. I challenge some1 to replicate this. video*

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

Sorry no video

Unread postAuthor: Technician1002 » Fri Oct 22, 2010 1:43 pm

Due to no high speed ability, I just gabbed my camera with good macro and did a sequence instead of a video. I hope the results are worth it.

The test is to find if a AA battery with a sabot will outperform a AA battery in a 1/2 inch PVC barrel.

The result is in the photos below. I used a lower pressure on the 2 inch cannon to keep the noise down. Even at lower pressure the battery is obliterated.

Edit; After cleaning up, I located the top of the battery. Flat and paper thin.
  • 0

Attachments
Battery Sabot parts.JPG
The sabot is in 2 parts, a seal for the barrel and a foam insert to orient the battery. The hole in the foam goes all the way through so only the plastic bottle pushes the battery.
Battery Sabot assembled.JPG
The foam and battery nests inside the water bottle bottom.
Battery Sabot pressure.JPG
The test pressure is a little under 70 PSI.
Battery Sabot after.JPG
I was lucky and one strand of the battery case was trapped in the remains of the sabot.

The sabot was ripped to shreds by the exploding battery.
Battery Sabot shrapnel.JPG
I found a couple of pieces of the battery case after a careful search. This was all I could find.
Battery Sabot dent.JPG
The impact did leave a small mark of the battery electrode on the steel plate.
Battery Sabot target.JPG
This is the view downrange.
Battery Sabot top.JPG
Top of the battery
Battery Sabot edge.JPG
The top of the battery is paper thin.
User avatar
Technician1002
Chief of Staff
Chief of Staff
 
Posts: 5190
Joined: Sat Apr 04, 2009 11:10 am
Reputation: 14

Unread postAuthor: jhalek90 » Fri Oct 22, 2010 10:03 pm

nice.

So tec.... i just built my first QDV!!! it has a 4in by 5 foot chamber. and a 2in barrel. there is just slightly more surface area on the ports than the surface area of the barrel (about 125%) i fired it at 10 psi, and holy freakin crap. I now understand your tendency to prefer QDVs
Video soon, i hope.
  • 0

jackssmirkingrevenge wrote:I wonder... if you put flammable vapours inside a lady... could you get her to diesel?

POLAND_SPUD wrote:Anything is possible with the proper 3-way valve.
User avatar
jhalek90
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 498
Joined: Fri Aug 14, 2009 5:37 pm
Reputation: 0

Unread postAuthor: Technician1002 » Fri Oct 22, 2010 10:23 pm

Video, photos, etc. of your 2 inch please. Hope to see it in the showcase soon. Let me know when you try a 100 PSI shot. With my ABS test cannon it took quite a while before I got a 100 PSI shot from it. Most of the time I used it from 50-65 PSI with an occasional 75 PSI shot. This year is the first time I fired it at 100 PSI.

The Marshmallow cannon is fired at 100 PSI all the time. The shirt cannon is used most of the time between 40 and 60 PSI. At 100 PSI, it kicks.

As long as you posted in this thread, be sure to smash a AA battery with it and post the results. :D

Umm, do you mean Cross Sectional Area instead of Surface Area?
  • 0

User avatar
Technician1002
Chief of Staff
Chief of Staff
 
Posts: 5190
Joined: Sat Apr 04, 2009 11:10 am
Reputation: 14

Previous

Return to General Spud Cannon Related

Who is online

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

Reputation System ©'