Homebrew PCBs

Lots of questions...

What size features can you cut?  What kind of separation?  Do you know
the spot size your laser can produce?  What is the approximate power
output?

Is it better to use a stepped x/y arrangement for the head moving over
a fixed target plane?  That would be easy enough to do with a diode
source, but may be unwieldy with a CO2 laser.  With the CO2 source a
moving target plane might be a better solution.  Or is it worth the
effort & expense to use a reflected beam with mirror movement
controlled by a galvanometer arrangement as is used in some medical
film scanners?

--Dave

--- In Homebrew_PCBs@yahoogroups.com, "tonyburch2001" <tony@...> wrote:
...
> Hi, that is very interesting. I noticed that link on SMTNet 
> newsletter this morning too.
> 
> I currently have a home-made xy table that I'm using with a CO2 
> laser. I'm using PLT files and Dancam software to drive it. The laser 
> is fixed and the xy table moves the workpiece around. Maybe I could 
> attach a laser diode to do exposure.
> 
> Anthony
> FPGA videos www.burched.com Soldering www.supersolderingsecrets.com
>