CR-6 Max filament runout sensor adaptor for Micro Swiss extruder, there is enough clearance between the runout sensor adaptor case and the printer frame at full height, the axle for the roller and knob is just 5mm wooden dowel, the two holes are sized for the 3mm threaded brass inserts in the filament run out sensor case, there is a 5deg offset with the two different top spool holder and filament run out sensor case that keeps the bowden tube straight between the two.