Ferris Wheel Gets New Axle

I've been worrying about how I would power this wheel since I started construction, so today I bought a 4 foot long 1/4 inch steel rod and swapped the k'nex axle with the steel one. The wheel is now completely supported by this axle and the little rollers which previously supported the wheel's massive weight are obsolete. This means I will be able to stretch a chain around the 37 foot circumference and power it with the k'nex 9v motor extremely easily. This should greatly decrease the time it will take to finish the wheel.