Homebrew PCBs

A UV LED would probably not be enough, but a UV Laser would. Unfortunately,
the UV Laser will be quite expensive. There may be some other UV source that
would work.

Neil

On 12/20/06, Marko Pavlin (home) <mp@...> wrote:
>
>   Hello!
>
> I am following this nice group for a while. This is my first post.
>
> I've got old X/Y coordinate table which used to be simple pick and place
> machine. There's no Z axis and mechanics is not strong enough for
> holding any machine with drill or mill tools. One crazy idea crossed my
> mind... what if I put one UV light source to this machine and plot with
> UV light directly to photoresist coated FR4? I can make small optical
> mask with (e.g.) 10 mils aperture, which floats on thin air blowing
> beneath the mask. It could act as single (fixed) aperture photoplotter
> for direct exposure of PCB photoresist.... Is this kind of stupid idea?
> Anyone had experience with that? Would be UV LED enough? Exposure time
> is critical here, but I am talking about PCB prototyping.
>
> Any comments?
>
> Regards!
> Marko
>  
>



-- 
http://www.pixpopuli.com


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