yeah when i saw the name goliath i was immediately filled with imagery of steel rods and screw drives with really big steppers.
And what you got was a r2d2 with milling bits. 
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very nice idea for a CNC machine. not limited item size this way…
a new explaination of the Nazca Lines…
Everyone with an xcarve. What gen is it and can you mill aluminum well?
Goliath would be using bad ass servos. Steppers are for toys 