The inspiration for this creation comes from the work Finger Treads Fidget Track of MottN. I would like to express my gratitude here. This universal Tracked Vehicle Chassis No Support No Assembly Required. Driven by N20 reduction gear motor（The specifications of the motor are shown in the picture）， I use M3*8 specification cup head internal hexagonal screws.

You can expand it with a connecting bracket to connect the left and right track devices. It can serve as a walking mechanism for remote control toys or smart cars as needed.

Notice：After printing, be careful when separating the track links and sprockets to avoid damage. Then apply WD40 for lubrication to ensure smooth operation. With a 4V voltage, the idle current is only 40 mA.