http://www.etotheipiplusone.net/?p=4688
Onyx is plenty strong enough for full-combat beetleweight robots, so will likely be good enough for MechWarfare as long as you use proper wall thicknesses and infill settings and maybe add fiber if it's really needed. Would even work for the gearboxes if the teeth are large enough. Which reminds me that I still need to get my compound epicyclic gearbox printed - got put on hold a few months ago because of funding issues and my BuildOne is still likely several months away from delivery.
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