Go Down

Topic: Firework Detonation (Read 1 time) previous topic - next topic

arduinopi

What is the easiest and most reliable method for having an Arduino light a fuse on a firework and be reusable. I have seen people use 1 ohm resistors and short them to light a fuse but those are only good for 1 use.
All of my projects --> http://www.frankmagazu.com/

KirAsh4

Maybe using a spark gap ignitor?

PeterH

Google turns up various single-use ones which makes me think there is no commonly accepted reusable system - probably because making the single use is cheaper/easier.

This chap seems to have made a DIY solution with the only consumable part being a short piece of fuse wire - wouldn't that be acceptable? I see you can get the commercial igniters for about 40p each so either way this doesn't seem to be an especially expensive approach.

http://www.instructables.com/id/10-minute-Easy-and-Reliable-Electric-Ignition/?ALLSTEPS

jroorda

If you must have a reusable solution you could try a piece of nicrome wire.  This is wire made out of the same material as toaster heating elements.  You can find it sold on Amazon and elsewhere for foam cutting.  You would probably want to wrap each short piece of wire with a little cotton to give the wire something easy to ignite. 

That said most of the disposable solutions are simpler, and when compared to the cost of the firework they only would add 1-2% cost to the display.

Chagrin

The instructable assumes a paper type of fuse ("quickmatch") that a firecracker/bottle rocket would have. If you're trying to light the thicker, woven type  of fuse ("visco") you're going to need more oomph. For that you can coat it in a wet slurry of fine black powder mixed with ~10% dextrin. Dextrin would be corn starch cooked in an oven for an hour or so until it turns a dark yellow color.

TanHadron

http://www.fireworksigniters.us/

wizdum

#6
Jun 15, 2013, 08:10 am Last Edit: Jun 15, 2013, 08:14 am by wizdum Reason: 1
Sparkfun has this:
https://www.sparkfun.com/products/11694

and This:
https://www.sparkfun.com/products/11218

Also, I used those Falcon 2 igniters before. They are...impressive. But all they are is a bit of nichrome wire secured to a plastic clip.

Go Up