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This machine is controlled by a PicAxe Microcontroller. A servo (used for steering in R/C cars) is used to tilt the track for a ball to roll round. The degree of the tilt can be controlled by a potentiometer in manual mode or in automatic mode preset instructions on the microcontroller tell the servo how to move. I struggled to find a name for this. I eventually settled on Perpetual Ball Roller. I like the "perpetual" part because it gives an idea that the ball will just keep going ...
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/perpetual-ball-roller