- 1x MK8 drive gear (ID 5mm) - 1x Stepper (NEMA 17, bipolar, 400steps/revolution (0.9°), around 44Ncm holding torque or more (e.g.: sparkfun's ROB-10846)) - XH 4pol male connector (used at LiPo balancers), or the original cable (solder and use shrink tubes) - ball bearing from the original feeder - some screws and washers (normal, spring and rubber) --- for the damped version v3 you need additionally: - 3x 15x15mm M4 rubber buffers - 3x PH2 M4x10mm screws --- for the damped version v4 you need additionally: - 4x fan decoupling slics