Re: gEDA-user: Free Dog meetings at MIT starting this September!

[John Griessen <john_g@cibolo.com>]

For this app there is also 355 nm laser with beam directing galvo mirrors or other 

acousto-optic modulator methods that can drill more than 100 microvia holes per second in FR4.

http://www.circuitree.com/CDA/ArticleInformation/features/BNP__Features__Item/0,2133,79365,00.html

JG


On Sun, 2004-08-22 at 13:45, Dave McGuire wrote:
> > Just add a homemade 150 000 rpm compressor-driven spindle PCB drill 
> > with
> > linear X-Y drives and 2um precision and you can save walking to PCB
> > manufacturer (however the machine weighs 6 tons - I fear it would
> > probably fall through the room's floor ;-) )
> 
>    Well...there are limits. ;)
> 
>         -Dave