Homebrew PCBs

> ST wrote
> Do you actually do mechanical milling?
> I don't, but as far as i am aware of it is
> far from trouble free and working well
> unattended.

No - I don't do mechanincal milling.  I have
compared the results of it and the time it
takes to photo.  I stuck to photo.

I have seen a few people that could not get
photo to work well and thought "There has to
be a better way" and have tried milling.

Some milling shops get it to work relaibly
some don't.  I would guess the ones that
don't are probably still looking for that
better way

The ones that do get it to work probably
care for thier machines and know its limits.

> You get other stuff with EDM, like
> changing the water, caring and feeding  
> of electrodes, ... stuff...

Hopefully the "stuff" is just once a month
maintenace like our CuCl etchant.

It needs looking after (acid/air/water)
but not every single board. Maybe the
EDM will need changing a roll of wire once
a year and replaceing water/filters once
a month.  Who knows till its been running
a year :D