Homebrew PCBs

John Myszkowski wrote:
> I guess it depends on the age of the boys and the price of their 
> toys...?  :)
> 
> Lasers are one of my hobbies, or at least they used to be. The lasers 
> I used were either made by me or found on a scrap heap and repaired 
> by me.
> 
> But you are correct, it is beyond most hobbyists abilities. I was 
> just trying to be helpful to the ones who can get access to the laser 
> type hobbies.

What power CO2 laser do you need for cutting 3mm steel/brass/aluminium?
I've got a two-stage pump that can go to 10^-4 torr. I'm designing a
cnc x-y table...