This is a bracket to hold the X axis motor, the X limit switch and the filament run-out sensor for the Creality CR10S, CR10 and the Ender 3. It was made to accommodate a direct drive modification.
To complete the assembly you will need four M3x40 screws, two M3x12, one 7 mm ball, one PTFE 1.75 quick connector.
This design is built upon the X limit bracket shared on Creality GitHub page.
I have made this mod for the Bondech DIrect Drive Extruder & Hotend upgrade kit. Recent CR10S batches seem to be delivered with the Ender 3 bracket, in the past spacer screws were used. This mod can replace either one or the other.
New iteration V3 provides better loading and unloading filament guide.
There is a new iteration called V2 which add a fillet to enter the filament more easily.
Both pieces work well in my experience however the V2 should be an improvement.