I'm very new to RepRap and these forums so I have no idea if anyone has see this before, but I thought this community would really it. The tool is an open source cnc router. So rather than building things up it cuts them down. In anycase it seems like it would be very very easy to combine the two ideas to either be used a two seperate times, or with both extruder and router heads mounted at the same time.
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buildyourcnc.com]
Take a look!