Robot Idea

I have always had a love for robots and collect early Tomy Robots. I would love to have a butler type robot, who could carry drinks, grab things off the floor, chase the cats and answer my commands kind of like robbie the robot, but much smaller.
When I save up enough to get the LD Humanoid robot, i plan to slowly replace all the white plastic with colored 3d printed parts. I would love for him to walk around the main floor of our place, bug the cats, do roll overs etc.
Being able to easily change and modify your robot designs open up a whole new world to myself and having it easy to control makes it so much better
I WILL be buying one soon, just have to put together the $
Thank You