Ugears "Tractor Kit" I DIY Self-Assembly Mechanical Kits For Teens and Adults coder rotating wheels and a rotating

rotating wheels and a rotating door mechanism

The rubber band motor drives the sails by means of a screw conveyor (worm feeder) and gear transmission

Once the motor is removed

6 in (10*7

Ugears "Tractor Kit" I DIY Self-Assembly Mechanical Kits For Teens and Adults coder rotating wheels and a rotatingThe Tractor from UGEARS is a rattling greeting from the past century. No electronics, just plywood, rubber band motor, and tons of fun! The motor has a transmission switch that provides three options: park, drive, and sport. The drive mode will get it going slowly, covering about 5 cm per second. Switch the model to sport to see your Tractor speeding up ahead! Model size: 7. 9*3. 4*5. 4 in (20. 1*8. 7*13. 7 cm) Package size: 14. 6*6. 7*1. 2 in