[mrnoble]

you're all going to react in horror, but we made our hubs out of quartersawn white oak, turned on the lathe and broached for the hex axle using chisels. Most of our bots for the last several years have been made of wood to some degree or other, as woodworking is the program our robotics team grew out of. We've had great results (by our standards), because wood is tough, durable, and easy to manufacture. So far they look like they will hold up well, but as has been said already, the weight may make us change our minds later. We'll see!