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Backyard Ballistics This forum is dedicated to the safe teaching and responsible handling of high and low explosives. You will not find any information on how to make "bombs" or any such device(s) . Backyard ballistics will teach you the science and the art of pyrotechnics and how to manufacture and use explosives/pyrotechnics safely and responsibly. Backyard ballistics is also a haven for rocketry and pneumatic cannons. All information contained within this forum is for educational purposes ONLY. Totse does not accept responsiblity for any incident involving the use of the information contained within this forum.

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 #1 
Old 2003-07-15, 16:34
Witchdokter Witchdokter is offline
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Default Safty Fuse Mk 1

This idea is for a safety Fuse it works pretty well too..

Basically, get a 5 amp fuse and wrap it around a match head without the wires touching . On the side of a match get some stiff copper wire or any other stiff metal and wrap the one end of the 5 amp fuse around one and do the same to the other.

Then you attach a wire on to one make a safe distance of it (2 meters is good, but have it longer depending on how powerful your explosive is)you then attach it to a switch which you'll use to activate the switch which leads to a pack of 5 aa batteries and then back to the other copper piece.

To activate the fuse stand back, make sure your battries work and flick the switch and wait some time for the match to ignite and you will have your explosive going off!!

Please post any upgrades you made to it so i can try to make it better.
 #2 
Old 2003-07-15, 23:21
DavidThePyro DavidThePyro is offline
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Default Re: Safty Fuse Mk 1

Christmas light ignitor is probably cheaper..
 #3 
Old 2003-07-15, 23:43
ObakeYatsu ObakeYatsu is offline
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Default Re: Safty Fuse Mk 1

Im gonna go with david on this one. I love the christmas light ignitor

The only problem is im out of bulbs at the moment. Im gonna have to stock up during christmas, now that i know what they can be used for.

Edit: btw, that was a good first post. Usually its something like "hay guyz, im noo heer". Anyway, welcome to totse and enjoy your stay.

[This message has been edited by ObakeYatsu (edited 07-15-2003).]
 #4 
Old 2003-07-17, 06:16
Benchrester Benchrester is offline
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Default Re: Safty Fuse Mk 1

Question on this: The few times I've tried using lights, the filament has broken as soon as the vacuum has broken. Is there a fool proof way or is it just hit and miss?
 #5 
Old 2003-07-17, 07:01
Rat_Bastard Rat_Bastard is offline
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Default Re: Safty Fuse Mk 1

it's usually hit&miss, but Christmas lights are cheap anyways.

There is one significant thing I found is how some bulbs filaments are placed:

http://krimzonpyro.com/rat/boardimage/christmas.gif (http://krimzonpyro.com/rat/boardimage/christmas.gif)

A Is the easiest to work with, because the filament is straight, and usually located low in the bulb, so when you break it, there is less of a chance of ruining it, when breaking the bulb.

B The filament is diagonal, and is harder to work with, plus it takes up more room in the bulb, increasing the chance of being ruined when breaking the bulb.

In other words, if you are buying extra bulbs, check how the filament is placed.

[This message has been edited by Rat_Bastard (edited 07-17-2003).]
 
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