Marble Explorer 3D Puzzle Kit WD04-08 Overall File Length (approximate): 12-1/2"

Overall File Length (approximate): 12-1/2"

Compatibility: For use with Sjöbergs Elite 1500

Built to outlast traditional carbon steel by a wide margin

A list of materials and an exploded diagram are given for each piece individually so that any one or all three can be made

Marble Explorer 3D Puzzle Kit WD04-08 Overall File Length (approximate): 12-1/2"Assembling the Marble Explorer Kit from Robotime offers an opportunity to understand STEM principles better, learn the basics of engineering and structures of machines, improve motor skills, and develop visual spatial abilities. Once marble race system is complete, the maker can appreciate the precise gear style and sleek transmission speed, while watching the elaborate mechanisms that keep the marbles racing along the track. A hand crank is used to