[thefro526]

Originally Posted by AllenGregoryIV

Last week we used Rice University's 3D printer to make an adapter that fits nicely into the fins of the gearbox and adapts it to a 1/2" hex shaft like yours. I'll try to get some pictures of our winch assembly tonight.

I'm still slightly worried that the part won't be strong enough so we may try to make one like yours for backup.

Not to go off topic here, but I've made FP hubs in a 3D Printer (Dimension SST1200) and they tend to split in between layers. When printing, insure that your axle is not on the machines Z axis or they're extremely prone to splitting in between layers under torque. If your printer isn't a layer type then you should be fine.