WalkingTreadMill

@Paul @Alon

Aim: Have a walking treatmill like http://store.steelcase.com/products/treadmill-desks-walkstation/ or http://www.treaddesk.com/

Todo:
 * What motor do we need? where do we get it from? plenty of places near by.
 * Dimensions - copy from treaddesk.com, they have one published.
 * Spec: again can start by copy of treaddesk.com - 0.5-4.0 mph
 * Frame design. Do we need a spring? or just screws to keep tightness?
 * Tread - where can we source it?
 * Control is the easy part, but still needs to be designed.

= Buying =
 * http://www.fitlife.co.il/archives/439