This mod corrects a filament path issue due to the bearing and the ~9mm gap for using that bearing.
Note: Creality uses this same sensor on other printers like the Ender 5 S1 and maybe others, so this should fix the same problem.
K1 Max users should use a filament that can withstand their chamber temp since the runout sensor is inside the chamber.
K1/K1C/Ender 5 S1 users should be able to use any filament since the runout sensor is on the exterior.
Try the (offset filament path) version first.
You will feel resistance when loading the filament; just push past it; it is the small roller on the sensor arm. You shouldn't have any more loading issues at the moded filament sensor.
The author marked this model as their own original creation.