BIQU B1 Smart Filament Sensor Bracket (parametric height)

Almost 1:1 remake of PJRAWs design in OpenScad. I didn't bother to model the threads, M3 can tap itself just fine and it will print better on less ideally calibrated printers.
The scad file has parameters for the M3 diameter and a height offset relative to the PJRAW version. With my extruder 3mm lower was spot-on.