I made this piece because I needed it for my other project which I will publish soon.
Just thought it would be useful in case someone broke or lost the original one.
It's a plastic part that used as stopper for X axis end switch.
I printed mine in PETG, but PLA should be fine. Make sure to add at least 3 perimeters and 25-30% infill for sturdiness.
Should be printed like shown on one of the photos - with support on build plate enabled.
The author marked this model as their own original creation.