For those of you with an H2D/H2C struggling with the stock external spool holder throwing a “tangled filament” error using the left extruder, I made this spacer that can be installed as shown in the picture into the yellow buffer sensor by pulling the yellow part all the way to the right, then sliding the spacer on. It should not prevent the sensor from working, it just mechanically increases the trigger threshold pressure. This print is designed for ABS/ASA with a .2mm nozzle for best results