Misha Larkin from Russia published his version of 3d printable Mars rover robot. It looks great. It was printed on XYZ daVinci.
All files and instructions can be found at:
https://www.thingiverse.com/thing:1318414
You can see a different version here:
http://diy3dprinting.blogspot.com/2015/03/3d-printed-rc-mars-rover-robot.html