Re: [CAD_CAM_EDM_DRO] CNC Controller board less than $495 ?

I had a catastrophic computer burnout that also blew up a chip on my MaxNC15 CL controller board.  I'm told the cheapest route is replacement at $495.  I'm looking for other solutions.  Ideal would be a Raspberry Pi solution since it costs only $35 and has probably enough pins to run all axes and if not another $35 for each axis would be way cheaper.  

Another option is a Beagle Bone Black ($55) and a CRAMPS board ($79)
(which you would use as a breakout board to external stepper drives)
It runs the machinekit version of LinuxCNC.  it is a lot more capable
system than the Pi.

Jon