Homebrew PCBs

"designer_craig" <cs6061@...> writes:
> Can you describe your LED array? What sort of spacing do you have on
> the LED array and distance do you run between the board and the
> LEDs?

I use a triangular grid, spacing about 1", about 5" from the board.
Total 99 LEDs, in 11 strings of 9 on a 37 volt power supply:

        http://www.delorie.com/pcb/uvled/

These are low-angle (8-10 degrees) and the spacings are designed to
give approximately uniform coverage, assuming I can aim the things
accurately.  Been thinking about redoing it with a PCB instead of a
chunk of plywood so I can solder them in securely, and at the same
time increase the LED density and add the second side.