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On Sun, Sep 15, 2013 at 12:05 AM, Slavko Kocjancic <eslavko@...> wrote:I found that posts but there are 150mW laser involved. And this thing
isn't cheap. In other side the UV power led is cheap. And I think that
3W UV led should compare to 150mW laser. (20x more power)
And my intention is to make that beam aprox paralel to with size let's
say 1mm squared. And then to use aperture whell wit round holes from
8mil up to 40mil, and used gerber stile data to work as old day
photoploter. Ie not raster scan but vectors...
Just don't know if LED is good enought...
Slavko
On 09/14/2013 09:05 PM, designer_craig wrote:
> If you are interested in direct imaging a photo sensitized board search back
> through the posts around Nov of 09 for Volkan. He built a UV laser diode direct
> writer that did spectacular images. The 400 nm blue-ray lasers are available on
> ebay. He has some images posted under the Files secton of the forum. These UV
> lasers are very strong >> 100mW.
>
> I took him a board I had coated in AQ3000 (water based photo resist) to try an
> image. Once we got the exposure set the image was amazing crisp.
>
> Volkan also built a drum photo plotter.
>
> Both these project on my list of cool things to build.
>
> Craig
>
>