pls help: about PCB design files for Arduino Robot

if is it possible for me to get PCB design files for Arduino Robot? i could find only schematic design files in arduino-robot-reference-design_3b1.zip
as following:

control_board_v006_Rev5.1.sch
Motor_Board-Rev5.2.b.1.sch

who could tell me where I could download PCB reference design files?

Any suggestions?

Why would you want them?