I just thought of an amazing alternative to the RepRap motherboard that
doesn't need a computer to drive it: the
BeagleBoard! This way, you could have it
interpret the G-code directly and quickly (as opposed to MakerBot's way
of doing that work on the computer and then sending different, simpler
commands over the serial lines, keeping the heavy-lifting off of the
µController). In my hypothetical setup, the stepper drivers would be run
directly from the computer, like how most CNC machines are run (over the
parallel port). This also, in the case of the MakerBot, could allow the
BeagleBoard to be integrated into the MakerBot with the
screen from Liquidware. This way, you could
download, Skein, and print an object all from the MakerBot. Mmmmmm...
Standalone MakerBot. Of course, with the RepRap motherboard
at $59.00, the
at $149.00, and the
$258.33, this becomes a bit unfeasible.