Rusa bowden extruder gear

MK7 gear use extruder
625 bearing x 2
624 bearing x 1

M5 50mm bolt x 1
M4 10mm bolt x 4
M3 20mm bolt x 1
M3 10mm bolt x 4

M4 NUT x 4
M5 NUT x 1

Do not drilling the spur gear
Spurs attached to the gear rotates the M5 bolts.
The shaft is fixed to the motor rotation.
Secure the Mk7 extrusion gear to the M5 bolts.
The gear ratio is 1/3.