Updated Dual Gear Ender 3 Extruder, Dual Hardened Steel Drive Gear CR10S Pro Extruder Blue Compatible for Ender 3 V2, Ender 3 Pro,Ender 3 Max,Ender 5/CR10,3D Printer 1.75mm Filament Extruder,

Product description 5Aplusreprap Upgrade 3D Printer Ender 3 Dual Gear Extruder Blue, 1.75mm Filament Extruder, Upgrade CR-10S Pro Extruder All-metal aluminum alloy, diy aluminum block, you need to be assembled it by yourself.After installation,suggested E-steps setting at 139,then increase or decrease the unit value according to the actual printing effect.The dual drive gears that grip both sides of the filament, so it doesn’t have to dig in as deep as a single drive extruder.There’s a tension adjustment on the high-quality yellow spring that holds the gears against the filament.