【Features】a 5:1 gear design to provide torque while being virtually silent. You need to do your own tuning to achieve the best results.
【Upgrade replacement part kit】: very well made parts, compared to the old version, this accessory is more durable and stable.
【Material】Our gear material: made of hardened steel and nickel plated, others are made of stainless steel. Firmware modifies the extruder pulse: #define DEFAULT_AXIS_STEPS_PER_UNIT {80, 80, 400, 409}.