E3D V6 Mod with belt tensioner for TwoTrees Sapphire Pro/Plus

The modification for sapphire pro/plus allow to: -ensure the proper tension of belts -mount an E3D V6 hotend, or other with a similar heatsink top -reduce stringing or print cooling problems with voron-inspired efficient fan ducts -avoid heat creep by using high efficient hotend cooling You need: Threaded inserts: 8x M2,5x3,6 6x M3x5 2x M4x5/ or longer Nuts: 2x Hexagonal M4 (DIN 934) Screws: Din 912: 2x M4x20 4x M3x25 8x M2.5x6 4x M3x8 Din 7991: 2x M4x10 Fans: 2x 40x40x10 (the same as the original) 1x 40x40x20