Perhaps my offerings today will be meager, but I had a very busy week. Still, I have to say one thing: Revolve and Array functions are God's gift to mankind! After learning, how actual tank wheels are made (usually by means of massive presses, bending sheet metal en masse or, failing that, huge casting machines and CNC mills), I've managed to make a good looking road wheel rim WITHOUT abusing the Extrude command. Files are attached. Pretty simple thing, but damn gratifying. Next stop, tires, axles and swing arms.

Damn, I'm having fun.