Homebrew PCBs

> bit expensive at $35K, but the print heads seem to be mostly self 
> contained and are refillable, they range from $59 to $99 and may be 
> adaptable to a cnc machine.

Now that is interesting.  I'd like to find out more details about the 
print head pricing, it feels like I'm going to call them on the phone 
and somebody's going to try and talk me into spending much more then 
$60 - $100 on a head assembly to retrofit my own equiptment.