[dorkbotnyc-blabber] how to make a water pistol?

[Dan Steingart]

>
> anyway, go to mcmaster.com and search for 'nozzle' or the page number

'2045'.  They have all sorts of nozzles that will screw into whatever
> pipe assembly you come up with.  you can also get something like a
> bike stem to supply air pressure.  they also sell solenoid valves.
> they have everything.  its one of my favorite supply websites.


Indeed: in particular look out for a "air activated solder dispensing
 unit", it's a weller pressure regulator with a foot switch that's very easy
to hack to an arduino I/O closing circuit, you don't even need a relay.

oh, and the icing on the cupcake:  they're located in jersey.  you
> usually get the package within a day.


This is where mcmaster shines: it's national so it's close to wherever you
are.  When I was in Berkeley the storehouse that shipped was located in LA:
everything was next day.

If time is on your side, you might want to shop around once you find the
kind of part you like on McMaster: their speed and selection generally comes
at a slight premium.

Dan
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