The Red Box

My design is a robot that can collect moon dust. The red box is a place to hold all the dust. The tires are clearing the dust. The yellow part sucks up the dust. The green part moves so the yellow part sucks up the dust and wants it full. The green part turns the wheels to the gray tubes. The gray tubes suck up the dust into the red box. The wheels on the side make it move so you can collect dust everywhere. You can create tons of these so you can collect moon dust.