Homebrew PCBs

I've been watching some videos on YouTube that are very interesting:

    http://ciciora.com/picknplace.html
<http://ciciora.com/picknplace.html>

and in the menu there is one called

    CNC Taig mill solder paste dispenser

I'm very interested in doing something like this with my mill but I
don't know very much about the pneumatics involved.  They seem to be
using ordinary syringes as the tool head for picking up and placing the
parts.  They are also using a syringe filled with solder paste for
dispensing.  They must be using an air pump that can be both a vacuum
pump and compressor.

Can anyone direct me to a site where I can learn something about the
pneumatics involved?  When I google "pneumatics" I get a gazillion hits.
I don't know where to start.  I also would like to know what kind of air
pump to look for.

Thanks,

Mark



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