- PLA or other wear resistant plastic. - 1x 105 Bearing - [Source: HobbyKing](http://www.hobbyking.com/hobbyking/store/__21549__Ball_Bearing_5x10x4mm_2pcs_bag_Turnigy_Trailblazer_1_8_XB_and_XT_1_5_.html) (Comes with a spare, which will be used in the extruder.) - 1x 10T/5MM M1 Pinion - [Source: HobbyKing](http://www.hobbyking.com/hobbyking/store/__45522__10T_5mm_M1_Hardened_Steel_Pinion_Gear_1pc_.html) (Optional, see description) - 3x M3x10 bolt - 6x M3 Nylock nut - 4x M3x30 bolt - 1x M5x30 bolt - 1x M5 Nylock nut