Ignition Question

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
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Void
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Sat Feb 17, 2007 3:24 pm

Ok living in Australia kind of makes it hard to get a hold of a taser
stupid rules. I've built plenty of spud guns but none with propane.

But yet you can go to ya local farmers shop and pick up a fence energizer that has more kick then a tazer :shock:
That leads me onto my next question
can i use this little sucker
SUREGUARD

12V BUDGET BATTERY ENERGISER
* Boundary length maximum: 1~2km (3000~6000ft) of live wire.
* Dimensions of case: 130x35x25mm (5.1"x1.4"x1.0")
* Weight: 190g (6.7oz)
* Power Requirements: 12 volt rechargeable battery of at least 10 Amp hours.
o A battery is essential for proper operation. You can simultaneously charge the battery with a transformer but you cannot operate the energizer directly from a transformer.
* Power Consumption: 0.1 Amp hours per day
* Output voltage: up to 9.5kV
* Output Impedance: 120 ohm dc
* Output Joule Rating: Typically 0.05 Joule.
o This design is unregulated. Output varies with battery & fence condition.
* Output Pulse Rate: Pulses occur every 1.2 sec.
* Weatherproof: Yes.


This would be used with a propane cannon and rigged to deliver 2 sparks
Last edited by Void on Sat Feb 17, 2007 5:45 pm, edited 1 time in total.
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Hotwired
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Sat Feb 17, 2007 4:43 pm

I suppose so but the circuit is designed to give up to a 9.5KV pulse every 1.2s... so its not going to be instant ignition.

They also seem to be really expensive.
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rl93
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Sat Feb 17, 2007 5:37 pm

Fix your grammar and spelling.
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Sat Feb 17, 2007 5:48 pm

Oh we have grammar police on this forum?
fixed.

Just remember that some words have different spelling between USA and Australia

Back on topic,
Yeah your right Hotwired, May just be easier to rig up a camera flash ignition
That unit on costs $80 to buy here in Australia
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philyman65
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Wed Feb 21, 2007 8:42 pm

i dont know how to set up my bbq igniter sum1 please tell me how :(
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keep_it_real
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Thu Feb 22, 2007 10:23 pm

you put to screws in the chamber on opposite sides that are about a quarter of an inch away from each other. Attach the two wires that come out of the bbq lighter onto the screws and you're set.
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TwitchTheAussie
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Fri Feb 23, 2007 12:28 am

How do ya do the camera flash set up?
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philyman65
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Sun Feb 25, 2007 9:06 pm

but i can onley get the 1 wire igniter
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frankrede
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Sun Feb 25, 2007 9:34 pm

you can order and ignition box from sgort that will perform alot better and runs on higher voltage from either launchpotatos.com/thespudmall.com/spudshot.com

they are legal in australia
Current project: Afghanistan deployment
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c19o
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Sun Feb 25, 2007 9:55 pm

Flint igniter is another way to go. Like the ones you use to light camping lamps.
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