FlyingBear P902 E3D RAIL CORE XY conversion

Convert Flyingbear 902 to CORE XY on rails

details for converting the original kinematics of the printer to CORE XY:

3xrails MGN 12H 350 mm (https://aliexpress.ru/item/32806622073.html?spm=a2g0s.9042311.0.0.264d33edoPh37q)
2xbelt GT2 6 mm 1,5 m
2xPulley 16 Without Teeth bore 3 mm (https://aliexpress.ru/item/32930480416.html?spm=a2g0s.9042311.0.0.264d33edoPh37q)
6xPulley 16 With Teeth bore 3 mm (https://aliexpress.ru/item/32930480416.html?spm=a2g0s.9042311.0.0.264d33edoPh37q)
2x 16 teeth GT2 Timing Pulley Bore 5mm (from Flyingbear 902)
screws M3
nuts M5

Video demonstration of the work of this modification:
https://youtu.be/Jn6XiQTg8oM
https://youtu.be/li7Alk-q6T8
https://youtu.be/EDU3EeLroLI
https://youtu.be/XNFy1oGgP80