26478743 Fireworks Igniter

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http://www.instructables.com/id/Fireworks-Igniter/

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Fireworks Igniterby systemf92 on June 15, 2009

Table of Contents

License: Attribution Non-commercial Share Alike (by-nc-sa) .............................................................................

Intro: Fireworks Igniter .........................................................................................................

step 1: Acquire your materials ...................................................................................................

step 2: Tape wires to the match ..................................................................................................

step 3: Wrap the match head with steel wool ........................................................................................

step 4: Secure the steel wool ....................................................................................................

step 5: Using the igniters .......................................................................................................

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Comments ...................................................................................................................
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License: Attribution Non-commercial Share Alike (by-nc-sa)

Intro: Fireworks IgniterThese electronic igniters will reliably light any firework with a fuse on it. They are designed to use in conjunction with my Fireworks Controller , but can be used with aelectronic controller that you may have built already, or even any 12v battery. They are relatively simple to construct and are made of common materials alreadyavailable in your house or at a local hardware store. You don't need nichrome wire to construct these igniters.

Use these igniters ONLY IF :

It is legal to launch fireworks where you liveYou are using factory/store bought fireworksYou are far away from dry grassThe launching area around the fireworks is clearThere are adequate safety features on your controller to reduce the chance of an accidental detonation while connecting the igniters

The author (Systemf92) is not responsible for any accident, damage, or death that may occur from the use of these electronic firework igniters. Use at youown risk.

step 1:Acquire your materialsThe parts you will need shouldn't be to hard to find, if you don't have them around your house, then your local hardware store should carry them.

Parts Needed

Any small gauge insulated hookup wire, stranded or solid, around 20-24AWG (Size doesn't matter that much, as long as the gauge is not smaller than the steewool you will be using. You will need about 6" per igniter.)Matches, one per igniterElectrical tapeGrade #3 steel wool (commonly used to remove paint and clean engines)

Tools Needed

Scissors (or teeth, for cutting electrical tape)Wire strippers (if you don't have any, try using scissors)
http://www.instructables.com/id/Fireworks-Controller/http://creativecommons.org/licenses/by-nc-sa/2.5/


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Image Notes1. Grade #3 steel wool2. scissors3. wire strippers4. small gauge hookup wire5. electrical tape6. standard matches

step 2:Tape wires to the matchFirst, cut two 3" pieces of wire for your igniter. Strip about 1/2" off of each end. Line up the wires on both sides of a match, with one end of the stripped wires l ined up wthe match head. Wrap electrical tape around both wires and the match to hold them in place. Make sure they have stayed on opposite sides of the match after you tapthem to it. See the second picture below for the placement of these wires.

Image Notes1. wires stripped 1/2" from ends

Image Notes1. electrical tape


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step 3:Wrap the match head with steel woolNow that the wires are taped to the match, we can add the heating element, steel wool.Take your ball of steel wool and look for a long, thick piece. The pieces are not uniform throughout the ball, so find a good one that is about 3" long. Extra length can bcut off when we are finished, so don't worry about having a piece that is too long.

First, pinch the end of the steel wool strand between one of the wires and the match, as seen in the first photo below. This will keep i t from slipping off when we wrap iaround the match head.

Wrap the steel wool around the head, around the wire on the opposite side, and back to the wire you started on. Then, do this once more (wrap it around the matchtwice). When you have done this, you should have two strands of steel wool crossing each side. See photos below for more detail.

The number of times you wrap the steel wool around the match head is important because if the steel wool wraps around too many times it will just conduct and not heup. Too little, and it burns up before it can ignite the match.

After wrapping the steel wool around twice, loop it around the wire you started on a bunch of times to take up the extra length and hold i t in place.

Image Notes1. pinch one end of the strand between the wire and match

Image Notes1. wrap excess back around the wire2. steel wool crosses match twice


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Image Notes1. steel wool crosses match twice

Image Notes1. an ideal piece of steel wool

step 4:Secure the steel woolAfter the steel wool is wrapped around the match and connected to each wire, fold the ends of the wire back over the loops in the steel wool to keep them from slidingthe end of the igniter. This is the final step, and you are ready for ignition.


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Image Notes1. fold wires over the steel wool

step 5:Using the ignitersTo use the igniter, connect it to a long run of two conductor cable such as speaker wire with alligator clips on one end. Connect one alligator clip to each lead on theigniter, as seen in the picture below. Connect the opposite end of the long speaker wire to one channel on a fireworks controller . These igniters are designed to be us

with 12v DC power, which is the right amount to correctly heat the steel wool. If you do not feel up to the task of constructing an entire controller, using a 12v battery wwork fine too, just connect the leads of the speaker wire to the terminals when you are ready to fire. This isn't the safest option, but it works.

Depending on the thickness of your speaker wire, you should be able to prop the igniters up in a way that will keep them near enough to the fuse of a firework to igniteLeaning the match heads right up against the fuse itself has worked well for me so far.

Things to consider:

Make sure that the alligator clips are not touching each other, as this would cause a short circuitMake sure the exposed wires near the match head of the igniter are not touching each otherIf the igniter does not ignite after 1-2 seconds of pushing on the ignition button (applying power to the circuit) stop pressing it or you will short out yourcontroller/battery because the full current is flowing back to it, rather than having the resistance of heat in the steel wool.)When the igniter is used up, it ideally will completely break the connection between the two wires, but sometimes it doesn't, so a channel might show up on youcontroller as still being unfired, even if the match has already been burnt up. Keep track of what you have fired already, because there is usually at least oneigniter that does this in a batch of 12 being used at once.

Video of ignition
http://www.instructables.com/id/Fireworks-Igniter/step5/Using-the-igniters/http://www.instructables.com/id/Fireworks-Controller/


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Comments

47 comments Add Comment

akanan says: Oct 3, 2009. 10:15 AM REP

I had 4 9v batterie in series. And it didnt light the match. i have the exact same steel wool why?

thepaul1993 says: Nov 3, 2009. 9:57 PM REPin series it justs up's the voltage,in parallelit ups the amps.the more power it has the more chance it will work.try connect them in parallel.
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ktalex says: Oct 13, 2009. 6:44 PM REPdid you check the output voltage?

jon_nic says: Oct 2, 2009. 5:45 AM REPnice idea, but i use a 10ohm, 1/4 watt resistor stuck to the firework fuse. place 12V across, The resistors burn and the firework i nites

pyra_builder_1337 says: Sep 30, 2009. 6:53 PM REPanother way to do this is to take the wire setup and place it on a piece of celophane pour a SMALL amount of BP on it and cover with duct tape leaving somof the sticky part over the plastic so you can tape it to the explosive device

chelsea517 says: Sep 19, 2009. 5:45 PM REPgood, we also have a special website for this. www.electricigniter.com

batman96 says: Sep 18, 2009. 9:15 AM REPI built this, it works great!

pattermon says: Sep 8, 2009. 9:37 PM REPooohh ya!!

DeeStructables says: Aug 31, 2009. 2:58 AM REPVery "Mwuhahaha" of you. Would it be possible to hook this up to a bank of capacitors to make a cleaner ignition? Thanks for this instructable, very good.

funwithfire93 says: Aug 22, 2009. 6:01 PM REPy uses aligator clips y not use longer wire? and im trying to rig aton of them together do u have any suggestions

valdspar says: Jul 30, 2009. 12:38 PM REPHI i have a problem, ive been trying to put this together, and this seems like a great ignition, but when i actually try and light the ignition i only get a spark bwhere i wrapped around the steal wool. Is this an issue of wrappin around it to many times or what. I appreciate the help :)

codongolev says: Aug 13, 2009. 12:09 PM REPyeah- I just tested it a bunch of times, and if you use about a 2 inch long strand of small gauge that's about 1/4 inch in diameter, it will light in about 30

seconds- ivin you time to run even further.

systemf92 says: Aug 3, 2009. 9:46 AM REPyou might try checking the steel wool to make sure that each loop around the wires is in full contact with the match. Also, I was having this problem whI first started experimenting with designing a reliable lighter, and found this no-burn spark to happen when I used a small guage of steel wool, whichmeans that it is burning up too quickly to light the match. Make sure that the strands you use are as thick as you can find so that they spend more timeheating up to light the match instead of burning up on ignition.

codongolev says: Aug 12, 2009. 8:02 PM REPif you use more, it's not really instant, but it still works. all I have is small gauge, and it still works.

codongolev says: Aug 12, 2009. 8:01 PM REP

got it workin' with a 12 volt ac adapter-- I added more steel wool. if you add more, it takes longer to heat up, but i t's more reliable. also, in my test, the steewool actually lit the match before it started to burn.

misanthrope13 says: Aug 3, 2009. 4:10 PM REPYo! Great ignitor! What I found which works better than the steel wool is a single strand of copper wire. It's stronger than the wool so it's easier to wraparound the match, though one loop around is enough. It also seems to take a little longer to burn than the wool.

systemf92 says: Aug 9, 2009. 9:43 PM REPinteresting, i'll have to try this.
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bighead5454 says: Aug 8, 2009. 12:59 AM REPhey if you use this with a model rocket controller by clamping the alligator clamps to the wires then it would be awesome

Raydoom says: Aug 3, 2009. 2:34 AM REPnice I niter , How many volts did you use ?

systemf92 says: Aug 3, 2009. 9:43 AM REP12v

cdousley says: Jul 25, 2009. 10:02 AM REPcoul you tape this to the fuse or would it be better to take the fuse out and put this insude

systemf92 says: Jul 25, 2009. 11:02 AM REPonly use these igniters by attaching them to an existing fuse on the firework. Do Not modify the firework, doing so could be very hazardous andpotentially fatal, and don't just stick the igniter inside somewhere. Be safe.

Jerimiah40 says: Jul 5, 2009. 8:21 PM REPHow would you recommend attaching this to the actual firework?

systemf92 says: Jul 6, 2009. 3:29 PM REPI dont have a very secure way of doing this right now, but what has always worked for me is to just lean the match head directly on the fuse or slightlybelow it. The ignition wire I have running from the board to the ignitor is also thick enough to bend roughly into a position and stay there to ignite the fusI have also thought of using something like a paperclip to hold the ignitor to the fuse, you might try that.

bowmaster says: Jul 8, 2009. 7:39 AM REPHave a bit (~1 inch) of steel wool hanging off. Then wrap it around the fuse.

systemf92 says: Jul 8, 2009. 4:06 PM REPahh, now we're talking. good idea

pontiacking says: Jul 16, 2009. 1:38 PM REPIf you wrap a 1in. pice of fuse to the match win you wrap the match head with steel wool you can tape the fuses together

ARA-GhOstKrieg says: Jul 5, 2009. 10:37 AM REPVery useful!

systemf92 says: Jul 6, 2009. 3:25 PM REPthanks.

barry_allen7 says: Jul 4, 2009. 4:36 PM REPSweet! I love this. Great job!

systemf92 says: Jul 6, 2009. 3:25 PM REPawesome, lad you like it.

scienceboy63 says: Jul 4, 2009. 8:54 AM REPcan I use a 9V ignitor
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10/10


systemf92 says: Jul 6, 2009. 3:25 PM REPI'm not sure, haven't tried it yet. Use a 9V battery and try it out!

Mr. Stealth says: Jul 2, 2009. 2:18 PM REPCould I stick a fuse, to a fountain or somethin , in the middle instead of a match?

systemf92 says: Jul 6, 2009. 3:24 PM REPNo, the spark that might jump between the two wires will not ignite a firework fuse. Sure would be easier if it could though, but that's why we have to gothrough the trouble of doing all this with a match that will burn long enough to light the fuse.

Proud American Pyro says: Jun 26, 2009. 9:18 PM REPThat is pretty dang cool.

systemf92 says: Jun 26, 2009. 11:15 PM REPthank you!

edfel01 says: Jun 23, 2009. 1:09 PM REPthx this is all i needed to test my controller

systemf92 says: Jun 25, 2009. 6:22 PM REPawesome, hope it works well for you. stay safe on July 4th

edfel01 says: Jun 26, 2009. 7:01 AM REPya were testing it tommorrow

I_am_Canadian says: Jun 20, 2009. 9:16 AM REPGreat work! I really like these... I will certainly try them out. Brilliant instructable too.

systemf92 says: Jun 21, 2009. 5:26 PM REPthank you, I'm glad you do. Let me know if you have any questions.

Spiff73 says: Jun 17, 2009. 4:46 AM REPWhat is the reusability of the igniter? I know the match and steel wool get used up, but can the wires be reused or are you going through an entire roll of wfor a show?

systemf92 says: Jun 17, 2009. 8:37 AM REPYes, the wires may be reused if you want to. They are thick enough to not melt, and there usually isn't much insulation that melts off. When you do, flipthe wires around because black soot is left on the folded over ends of the wire. The steel wool will make better contact with clean ends, but the alligatoclips will easily get through the soot on the folded over end when reusing them.

The Ideanator says: Jun 17, 2009. 6:58 AM REPAfter watching the video, the wire seems reusable enough, but who would want to reuse them while they're doing the show?

systemf92 says: Jun 17, 2009. 8:44 AM REPI believe spiff means that they can be reused after a show for another show at a later time. He means that you would go through lots of wire to beusing 6" of it per igniter, per show. By reusing the igniter wires, you could use one roll for two shows, basically.

lieuwe says: Jun 17, 2009. 5:47 AM REPwires will stay ok for re-use, the plastic insulation might melt/burn but that shouldn't be a problem...
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26478743 Fireworks Igniter

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