Homebrew PCBs

Just go to the group website and look for calendar icon (history) click 
and select november 1009. Then folow to the around date 12.



On 09/15/2013 07:46 PM, ctech wrote:

>
>
> Does anyone have a link to Volkan msg of the 9th of November? yahoo 
> search just give me error msg's
>
>
> On Sun, Sep 15, 2013 at 12:05 AM, Slavko Kocjancic <eslavko@... 
> <mailto: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
>     >
>     >
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