i rebuilt the bmg housing to use a steel ball and inductive sensor to monitor the filament in the extruder. this was important for my mmu2s. i use the whole setup on the eva hotend.

needed is:

1x magnet D6x2mm

1x melt insert M3

1x D7mm steel ball

1x M3 grub screw

1x 8mm inductive sensor (best the short variant)

and 1 bmg clone or original bmg for the inner life

Category: 3D Printer Extruders