유형거(遊衡車, yuhyeonggeo) - Korean traditional wagon

thingiverse

[parts list] 1. axis.stl x 1 2. bokto.stl x 2 3. wheel_flesh1.stl x 2 4. wheel_flesh2.stl x 2 5. wheel_frame.stl x 1 6. wheel_iron x 1 7. go.stl x 2 8. vertical_sal.stl x 4 9. horizontal_sal.stl x 2 [Assembly guide] https://a360.co/2YAexth password: yuhyeonggeo [description] This cart was designed and built to construct the Suwon Hwaseong Fortress. Jeong Yak-yong created a new wagon that fixed the weakness of oversized and brittle wheels, as well as the difficulty of using a sled. The bokto maintains balance in the cart's center of gravity by applying the principle of scales, allowing it to move quickly and lightly on slopes. One can estimate the performance based on a record that 100 ordinary carts carried 70 types of luggage in 154 days.