3d printed bevel gear-strength tests

Looking to make some 90deg gear trains, and wanted to know how much force 3d printed heard could resist.
After printing some gears, a holding block and some shafts, the testing began.

First few tries, the shaft to gear attachment kept falling. It was failing around 44 in.lbs of torque yet the gear teeth remained intact.

After redesigning the shaft to gear attachment, I was able to break some teeth at around 57 in.lbs of torque.

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