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My robot scoops things up by just rolling over it as it sucks it up like a vacuum. My robot can carry a lot of luner dust at one time, because after it gets sucked up, it goes straight to the inside of his body, but after about 30 minutes it will get full, so it will drop it off somewhere then continue collecting more dust. If it is hard for my robot to get luner dust it will use extra force, that's what the oval things are on the side of my robot, it gives the vacuum part extra power to get the harder pieces of luner dust. I added an antenna to my robot, so humans can communicate with the robot and tell it what to do, and also track it so it doesn't go anywhere it isn't supposed to.