This is the runout sensor separate mount for the Creality Ender 3 V3 KE. If you have relocated the spool holder, this will give you a cleaner look and you can remove factory spool holder leg. Also, this mount reuses the factory screws, you just have to force the M3 screw in to a little side hole, since its 2.5mm and the thread can not be printed.
I don't know if it fits the SE model.
I'm pretty new to 3D printing and modelling (Just about a week), i will be glad to take the comments and notes.
The author marked this model as their own original creation.