거중기(擧重器, geojunggi) - Korean traditional crane

thingiverse

[parts list] 1. hayuryang.stl x1 2. hayuryang-deungcheol.stl x4 3. hayuryang-neukcheol.stl x3 4. hoengryang.stl x1 5. hoengryang-deungcheol.stl x2 6. hoengryang-neukcheol.stl x4 7. hwallyun.stl x10 8. jeonhugang.stl x2 9. jungyuryang.stl x1 10. jungyuryang_neukcheol1.stl x4 11. jungyuryang_neukcheol2.stl x1 12. jungyuryang-deungcheol.stl x4 13. jwaugang.stl x2 14. seungryanggak1.stl x2 15. seungryanggak2.stl x2 16. big-hwallyun.stl x2 17. eolle.stl x2 18. eolle-stick.stl x24 19. jangde-and-hyeopgang.stl x2 20. mogang.stl x2 [Assembly guide] https://a360.co/2WPKGaL password: geojunggi [description] A device that lifts heavy objects using the pulley principle with minimal force is developed by Jeong Yak-yong, who refers to a book called "Gigidoseol" imported from China by King Jeongjo. Four pulleys are attached to the top and an object is attached under the bottom pulley. A cord that can be pulled on both sides of the back pulley is wound around the water-wheel so that the object can be lifted through the cord connected to the pulley as it turns the wheel. A complete picture of a fully assembled figure and a disassembled picture of each part are displayed on the gauge of the Hwaseong Fortress Station. The book lists the type and quantity of equipment made for the construction of Suwon Fortress (Hwasong), and one crane was used, which was made by the royal family and sent down to the construction site.