Filament Guide w/ Runout Sensor for Ender 3 with Direct Drive

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This is a Filament Guide with Runout Sensor for Ender 3 with Direct Drive. Additional parts: 1x 608 Bearing 1x M3x20 (if not available, instead you can use bearingSub_pin) Print: 2x Spacer 1x RunoutSensor 1x Ring (if no screw M3 available: print bearingSub_pin) Put the ring and the two spacers on a 608 bearing. Mount it to the arm with a M3x20 screw or the pin. Add a microswitch (19.7 x 10.6 mm) to the sensor mount.