In this log, I show how to make the "Tray Push Module." This module screws onto the "bin base." When the tray is filled with robot bodies, the pusher at the rear of the module can be pulled back and pushed forward to release a new body in the front landing tray.

Print the tray tower.

Attach the tower to the tray base. I melt them together using a soldering iron.

Screw this to a "bin base," insert the pusher in the rear slot and you are ready to load the tray with robot bodies (another log--coming soon!).