Feature

●All Metal Dual Gear Extruder - Instantly provide improved print quality and reduce filament slipping by firmly grasping the filament between two gear locked together. high extrusion force, ensuring smooth feeding.Manually change the e steps/mm in the Marlin firmware to 139 steps/mm.
●Aluminum Hand Twist Level Nut-Made by high quality aluminum,last much longer than plastic nuts.The torque of these nuts is large, making it easier to fine tune the hot bed.Metal nut is more powerful and will twist more tightly than plastic nuts.
●Hot bed Die Spring:The 3D printer spring made of spring steel is harder, more durable, has a longer service life and can be reused.(4PCS 25mm springs+4PCS 20mm springs) Suitable for different types of 3D printers.
●Teflon Tube（High Quality）-ID 1.9mm OD 4mm，Material: PTFE，The tight tolerances make sure that the filament is lead directly to the hotend with as little room for error as possible between the extruder and the hotend,Low friction,more accurate prints, less slippage.For 1.75mm filament.
●Compatible - CR-10/ CR-10S / CR-10S Pro/ CR-10 V2/CR-10 V3/CR-10 Max/ CR-10 Mini / Ender 3 / Ender 3 V2/ Ender 3 pro /Ender 3 max/ Ender 5 / Ender 5 Pro/5 Plus/Tornado 3D Printers etc.Note:ONLY suit for 3d printers with motor shaft over 20mm,please measure the shaft length before placing the order.

[Type 2]

[Type 3]

[Type 4]

[Type 1]

Description

Note: If you want to use 25mm spring on ender 3, ender 3 pro and ender 3 v2. you can use a tool to cut it to be shorter or adjust the hot bed to be higher to fit the springs. After-sales : each defective item can be replacement for free or refund. If any question, please feel free to contact or QA us, BZ 3D is committed to providing you with the best service! Package Included: Dual Gear Extruder. X1 Aluminum Hand Twist Level Nut.X4 20mm Heatbed Springs.X4 25mm Heatbed Springs.X4 M4x40 Hot Bed Screws.X4 Teflon Tube 1.2m.X1