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home made remote ignition for cumbustion cannon??

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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home made remote ignition for cumbustion cannon??

Unread postAuthor: zeigs spud » Sat Nov 11, 2006 12:47 am

yea basicly an easy way to have a remote ignition so i can be far away fom my ghetto gun.
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Unread postAuthor: iamthewalrus » Sat Nov 11, 2006 1:02 am

?? are u asking for a how to? cuz if so, look at the capital letters inbetween the parentesses next to "How-To Database".
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i got connections with the modfia, watch who ur talkin to noob.


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Unread postAuthor: noname » Sat Nov 11, 2006 10:33 am

Talk about this is in the Combustion Cannon Discussion. Did you miss the (NOT FOR HELP-ME POSTS) inside the title of the How-To's? I wonder why PCGUY wrote that.......
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Unread postAuthor: drac » Sat Nov 11, 2006 12:06 pm

Topic moved. Next time, post in the right section
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Unread postAuthor: sgort87 » Sun Nov 12, 2006 1:06 pm

Do you mean easy, or easy without spending much money?

Cuz I can get you a wireless circuit for about $30 or so.
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Unread postAuthor: zeigs spud » Mon Nov 13, 2006 6:50 pm

easy as in i can make it myself and spend at most 10$ or make it from old crap around my house.

srry for puttin it in the wroung section i thought i put it here lol.
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Unread postAuthor: SpudBlaster15 » Tue Nov 14, 2006 1:56 am

You could use an electric match (model rocket igniter), 2 lengths of cable, and a 9 volt battery. Should cost around $10. Suspend the igniter in your chamber, wire one end of each length of cable to each of the igniter's leads, run the wires to your desired location, and connect one of them to the battery. When you are ready to fire, connect the other lead to the battery.

If you wanted to improve upon this method by making triggering wireless, you could find a cheap RC car from radio shack or similar place, and steal its transmitter, circuit board, and battery. Locate the 2 wires that lead to the motor from the circuit board and connect them to 2 screws which will be threaded into the chamber. Use an alligator clip to attach each lead of an electric match to one of the screws, and when the transmitter and receiver are turned on and the throttle control on the transmitter is pulled, current will flow and trigger the electric match.

Neither of these methods would be effective as permanent ignition systems, but for 'testing a ghetto ass cannon' they would both work fine.
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Unread postAuthor: pyrogeek » Wed Nov 15, 2006 10:59 pm

Well, I have used a taser and a length of speaker wire to fire one of my old guns from a distance before. Works pretty well. The speaker wire I used was like 18gauge, and ran about $6. And you can get a taser as low as about $15 shipped if you get it off eBay. Out of your pricerange, but the stun gun can be used as a primary form of ignition afterwards.

E-matches sound like a good idea. But the ones you get from Estes rocket engines suck since they break too easily, and cost too muck. I like to make my own. They are very similar to the ones in the following link, except I sometimes use a single strand of coarse steel instead of the Ni-Chrome she uses.
http://www.rctparadox.net/spatulatzar/igniters/
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Unread postAuthor: abcdefg » Fri Nov 24, 2006 6:35 pm

if your gonna do that buy the launch thingy for hobby rockets....
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Unread postAuthor: kris » Fri Dec 01, 2006 2:50 pm

just get two long wires for a bbg ignitor hoever far you want to be from your cannon and just conect them the way you would normaly hook it up :D
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Unread postAuthor: Tshylea » Fri Dec 01, 2006 3:30 pm

You can also try using an alarm clock. I got one for 7 dollars. Just pull the case apart and find the speaker. Cut the wires right at the speaker and connect the hot (red or black) wire to the + side of a 9V battery. Connect a wire to the - side of the battery, and attach it to one screw in your gun. Connect the negative (white or possibly yellow) wire from the clock to the other screw and set the timer. When the timer reaches zero, it will close the circuit and make a spark. This should work fine, but there are 2 possible problems. The power of one 9V battery plus the AA battery in your clock might not be enough to get a good spark. You could use more batteries, connected in series, but then you run the risk of having the spark inside the clock. And you have no killswitch. When you set the clock, the only way to turn it off is to actually be standing next to it and press the off button. You probably don't want to be standing next to the gun, since being far away is the whole reason you would use the clock in the first place.
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Unread postAuthor: Recruit » Fri Dec 01, 2006 3:36 pm

Tshylea wrote:You can also try using an alarm clock. I got one for 7 dollars. Just pull the case apart and find the speaker. Cut the wires right at the speaker and connect the hot (red or black) wire to the + side of a 9V battery. Connect a wire to the - side of the battery, and attach it to one screw in your gun. Connect the negative (white or possibly yellow) wire from the clock to the other screw and set the timer. When the timer reaches zero, it will close the circuit and make a spark. This should work fine, but there are 2 possible problems. The power of one 9V battery plus the AA battery in your clock might not be enough to get a good spark. You could use more batteries, connected in series, but then you run the risk of having the spark inside the clock. And you have no killswitch. When you set the clock, the only way to turn it off is to actually be standing next to it and press the off button. You probably don't want to be standing next to the gun, since being far away is the whole reason you would use the clock in the first place.


Ummm if the gun fired then what is wrong with being next to it?
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Unread postAuthor: Tshylea » Fri Dec 01, 2006 4:20 pm

In case it blows up instead of firing.
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