Korean traditional distance measuring carriage

cults3d

The part list includes: 1. axis_hitrod_bell.stl x1 2. axis_hitrod_drum.stl x1 3. axis1.stl x1 4. axis2.stl x1 5. axis3.stl x1 6. axis4.stl x1 7. axis5.stl x1 8. axis2support.stl x1 9. axis3support.stl x1 10. axis4support.stl x1 11. axis23support.stl x1 12. axis45support.stl x1 13. bell.stl x1 14. bell_stand.stl x1 15. hitrod_bell.stl x1 16. drum.stl x1 17. drum_stand.stl x1 18. hitrod_drum.stl x1 19. gear1.stl x1 20. gear2.stl x1 21. gear3.stl x1 22. gear4.stl x1 23. gear5.stl x1 24. gearbox_top.stl x1 25. gearbox_wall1.stl x2 26. gearbox_wall2.stl x2 27. handrail_gearbox1.stl x2 28. handrail_gearbox2.stl x2 29. handrail_rater_seat1.stl x2 30. handrail_rater_seat2.stl x2 31. rater_seat.stl x1 32. bottom_plate.stl x1 33. driver_seat.stl x1 34. washer.stl x2 35. wheel.stl x2 In our country, we have measured the distance between regions since ancient times by expressing it as the number of islands. The method of measuring the distance may differ depending on the age, but using a long tape measure is the most accurate method in modernity. These measurements are primitive because they require a lot of manpower. On March 17, 1441, during the reign of King Sejong, the first cart was used for hunting in Gama Valley, and it was a distance-measuring cart called Gi-ri-go-cha. The cart automatically measured the distance by having a wooden figure hit a drum whenever it traveled one ri. This kind of cart had been used in China since the Jin Dynasty. When it traveled one ri, the wooden figure would hit a drum, and when it traveled 10 ri, it would ring a bell. Although its structure has not been revealed, the production equipment is recorded in detail in the Song History. It was designed so that when the wheel with a circumference of 18 chuk (a unit of length) rotated, it would rotate the gear and count the number of rotations, making the wooden figure hit the drum 100 times to indicate one ri. During King Sejong's reign, Jang Yeong-sil studied technology in China and returned to Korea, completing the self-striking clock in 1434 and the jade clock in 1438. If such mechanical devices had been made, it would have been easy to create the mechanism of the Gi-ri-go-cha cart. Therefore, it is also assumed that Jang Yeong-sil created this device. It is estimated that the wheel circumference of the Gi-ri-go-cha cart during King Sejong's reign was 119.15 cm, or one ri in the Sejong unit system, and when the wheel rotated 100 times, a wooden figure would hit the drum to indicate one ri. The number of rotations of the wheel was automatically calculated by the gear.