Hello. Thank you very much for this board; I've ordered one from Geeetech. In the mean time, I've been porting my APrinter firmware to run on the Due. For testing, I've wired it manually with a RAMPS1.4 and my firmware is already working nicely in that setup. The pins in the default config should be the same as RAMPS-FD, except maybe for the heaters, since the firmware can't yet use the FET thatby ambrop7 - Controllers