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It pics up dirt with a whole that deposits it on a funnel that then moves the dirt on a belt through the main arm under the motor that controls the arm into a bucket for collection. The upper half can be separated in 3 parts. The middle section that connects to the main body, The second section that holds the motor and the end of the dirt tube, and finally the wheel . The 2 towers that hold up the cable that lifts the wheal arm also has 2 flip out solar panels when needed main body has a low and wide profile body to stop it from falling over and treads for easy rotation and movement while the dirt cart attached by trailer hinge is on wheels. or treads themselves maybe acting as a second body but thats me just spitballing ideas i landed on wheels for simplicity.