Not yet tested
it took me a while to write this review. that's because I had to go through Marlin configuration and then extruder steps calibration to compensate the under extrusion caused by the drag of the filament inside the smart filament sensor. and now I found out that the best position for this sensor is to have it right next to the filament, and add some rollers to the filament to reduce the drag (just like in the picture), and now the printer is a KING!. I tested it with different scenarios and it worked pretty well!