I tried this with my 40W CO2 laser and
didn't have much success. Even with air assist I couldn't get all
of the paint off cleanly (or it re-deposited), preventing a clean
etch. I tried a whole bunch of different paints and powers but in
the end I wasn't happy with the results.
This guy seems to have had some success with a 2W laser diode.
Les
On 09/12/2014 04:44, 'Jeff Heiss' jeff.heiss@... [Homebrew_PCBs] wrote:
This guy seems to have had some success with a 2W laser diode.
Les
On 09/12/2014 04:44, 'Jeff Heiss' jeff.heiss@... [Homebrew_PCBs] wrote:
I\u2019m mentally exploring the idea of spray painting copper clad with spray paint and drawing traces in the paint with a laser. After the laser, the board is then placed in etchant and the copper exposed by the laser is etched away. I understand this is possible with 20W CO2 lasers by Youtube videos but has anyone explored this with a laser diode? Is the abundant ebay 445nm, 1W laser or the 808nm, 3W laser up for the task paint ablation?
Jeff