Hi,
Its not that much of an arduino question but an engineering one.
I am making a airsoft land mine and i have everything figured out but one thing.
How to fire the primer. ( shotgun .209 primer).
I have tried harvesting the power of a mouse trap but it wasnt enough.
Any ideas?
Keep in mind that i need it to be low in cost ( under 20$) and not huge.
How to fire the primer. ( shotgun .209 primer).
I have tried harvesting the power of a mouse trap but it wasnt enough.
I'm not a gun expert, but that's surprising. It seems like the guns I've fired require less force the pull-back the hammer than it takes to set a mousetrap.
Maybe a big solenoid? Maybe some weight on the mousetrap for more momentum?* Or maybe a rat trap???
* P.S.
Theoretically there's no difference in momentum, but in the real world it may work better with more mass and less speed.
I'll try both and then post results 
ty for the help!
Any ideas?
Instead of using impact to fire the powder, have you thought about heat?
Flintlock? You could use a flint from a cigarette lighter.
Battery, contact, short length of magnesium wire? If you can't get magnesium wire, use a flashbulb (not one of the modern xenon ones, but one of the old, single use ones). I don't know if they're still made, though. The glass in one of those gets very hot when it's fired.
use a spark
Since when are we assisting potential terrorism?? Is this actually an arduino question?
Everything we discuss here can be used for terrorism. Just because it can be used for less than honorable purposes, it doesn't mean it will.
Servo positioning, PIR, force sensors, GSM shields, RTC...
OP, are you using a firing pin of some sort? Concentrating the impulse of the force may do the trick if simply whacking the primer doesn't.
Maybe some weight on the mousetrap for more momentum? Didnt work.
Or maybe a rat trap??? Still waiting for Rat trap to arrive.
use a spark. The Primer shell is a bad conductor so it wont have any effect.
the problem with the heat is that it will have a delay of over 1sec, and i need it to be instant.
The solution is propably a bigger spring in the trap, rat trap will prove it soon.
Altho the nuclear head should go boom with a normal mouse trap.... dunno why it didnt :
heh, thanks for your ideas everyone! I'll post more results when I experiment with it.
Trip wire mouse trap, shotgun shell, and 2x4 board have reportedly been used to keep people away from pot patches.