Homebrew PCBs

I think it just does not matter that much. As noted earlier, I can SEE a 
difference on the exposed laminate, but this does not influence the 
result after etching. It seems to me that the resist ist quite forgiving 
here, well, at least with the Ordyl Alpha 900 I'm using this seesm to be 
the case.

The only reason why I would want to change something if at all is to 
have a bigger area (more leds I'm currently limitte to 160x100 cm sized 
boards) and a higher density (currently using a 20cm grid) to shorten 
the exposure time. However, the latter really is not important as I'm 
exposing only one minute with the current setup.

Markus

Myc Holmes schrieb:
>
> All of the designs so fr have used a rectangular grid. Since the output is
> circular in shape, why not take a clue form the honey bees and set up the
> LEDS in a hexagonal grid? This should result in more even coverage.
>
> Myc
>