If you need two drive two steppers on a single axis (useful for some of the newer RepRap derivatives and some other CNC setups), this board allows you to drive two stepper controllers from a single output. You can use it with controllers that use the standard MakerBot style 6 or 10 pin connectors, making it compatible with older RepRap drivers and all newer stepper controllers that are compatible with MakerBot hardware.These were made for a modular CNC setup that I'm currently developing. I've got a few spares if anybody's interested in grabbing a splitter or two.Just mill/etch/order some PCBs (it's one sided so it should be easy to make at home) and solder on the shrouded headers. You can use 6-pin female to female cables or make up some 6-pin to 10-pin F-F cables, as shown here.