On Fri, Sep 2, 2011 at 10:54 PM, Tom Pope <introcept@xxxxxxxxx> wrote: > Why not make one? Seeedstudio's PCB manufacturing service will give > you (10x)100cm^2 boards for ~$25. > http://www.seeedstudio.com/depot/fusion-pcb-service-p-835.html?cPath=185 I've done this before, but different PCB fab and different hole pitch - mine had a standard 100 mil square grid of holes and a second 100 mil square grid of holes in quadrature locations to the first. The PCB fabs hate this sort of board, it plays havoc with their drilling machines - excessive drilling time and bit consumption. The first fab I approached quoted a 60% overhead because of the high hole density. I still have one or two fabbed boards and the (hastily cobbled together) C code for generating .PCB files for these if anyone's interested. An example PCB file is attached - it's zipped because ~3000 vias makes for a large .pcb file :) Stephen Ecob Silicon On Inspiration Sydney Australia www.sioi.com.au $39 Spartan 6 board with 32MB DDR DRAM ? http://www.sioi.com.au/shop/product_info.php/products_id/47
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