Pachinko Ball Lifter

I won't get my Printer for quite some time, but I'm trying to get a start on modelling some things I've been wanting to make.
This is a modular Pachinko Ball lifter. It is designed to take 11mm pachinko balls from the bottom catch bin of a pachinko machine, up to the top feed bin. It can be made taller by adding more "middle sections".
The Catch tray / Bottom unit directs pachinko balls toward the auger.
As the auger spins, it forces the packinko balls against the internal rib of the feed tube. at the top, a flap directs the balls out of the feed tube.

7-28-14: Added screw together augers as an alternative to the interlocking augers. I think these will work better, as long as the plastic is flexible enough to let the top of each joint snap past the bottom.