How is this electrical controller done?

Thread Starter

Lunes

Joined Oct 2, 2018
6
Hello, i try to make a little e-cannon like this one
but i can’t find any information about how the ”green kinderegg” is made.

What’s the components used in it? Any suggestion on how i can make this?
 

jpanhalt

Joined Jan 18, 2008
11,087
Welcome to AAC.

1) A hot filament made from a light bulb or glow plug, which operates on 2V.
2) Propellant is shavings from matches.

Be careful, one of the explosions I have had in my life was trying to upscale a match stick rocket to a larger version. I was stuffing match sticks into a brass tube. That was a LONG tine ago (>60 years). Obviously, it wasn't too big as I wouldn't be writing this if it were. In retrospect, wear safety glasses.

For more fun look up "potato canon."
 

Dodgydave

Joined Jun 22, 2012
11,303
Looks like an heater made from nichrome with a led and series resistor, push switch to make it get hot, heats the match stick up and Boom!
 
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Thread Starter

Lunes

Joined Oct 2, 2018
6
Thank you! Yes, i read that nichrome wire works best as filament/heater, but the green trigger advice, how exactly is it made and what’s all the components used in it?

If possible, a safety button would be a great thing to add, but how can i do that?
 
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