Before you enter this length into the filament tracker, you need to first load the filament through the
filament tracker sensor and into the printer. This is easily done by holding the sensor in one hand and
feeding the filament though the guide hole and in between the two rubber wheels and out the guide
hole. From there the filament goes into the printer as normal for that printer. Unloading is the reverse
of this.
To turn off the BB023, unplug the power cable.