This part allows you to mount the SV04 filament sensor at an angle and a little better aligned with the filament roll and just snap it into place. Perhaps a little easier to use than the model I used for the remix, no need to remove the filament roll holders or other parts of the frame.
Just one piece included, mirror it for the other side.
The author remixed this model.
Fused two models and added a lip for a tighter fit. I didn't want feel like disassembling any of the frame so this is one way to reposition the sensors. Seems to be a pretty tight fit on the 2020 extrusion.