Item Name: BIQU Orbiter Extruder V1.5 Direct Drive Extruder With Motor For Voron 2.4 Ender3. Product Description1. Name: Orbiter extruder V1.5 (left hand)2. Applicable models:Direct plug-in models: Ender3, Ender3S, Ender3 pro, Ender3 V2, Ender5.Need to change the motor wire terminal models by yourself: CR10, CR10 S4, CR10 S5, VORON and other models, as long as there is a mounting bracket for this extruder, any step value can be used.3. DescriptionShell printing process: SLSMaterial: PA12Colour: BlackMotor: 36STH17-1004AHG motor4. Model download linkhttps://www.thingiverse.com/thing:47258975. Matters needing attention:1) The drive current of the extruder needs to be adjusted to 0.35A (Method: adjust the voltage to about 0.28-0.3V or adjust the E-axis drive current by firmware)Adjust the current reason: prevent the motor from overheating2) Modify the extruder pulse methodMethod 1: Modify the extruder pulse by firmware:#define DEFAULT_AXIS_STEPS_PER_UNIT {80, 80, 400, 655}Method 2: Send G code (can be sent by slicing software command):M92 E655M500package include:Extruder Kit*1