Specification Brand : GBA-SZC BulletPoint1 : 1.Dual gear Single pneumatic extruder,high extrusion force, enhancing the feed strength , ensuring smooth feeding, better pressure pushes the filament into the printer, not easy to lose steps. BulletPoint2 : 2.This all metal dual gear extruder is compatible with Ender 3 V2,Ender 3 Pro,Ender 3,Ender 3 Neo,Ender 3 V2 Neo,Ender 3 Max Neo,Ender 5, Ender 5 Pro,CR-6 SE,CR10 S series/Chiron/Vyper/Mega series/Tornado 3D printer etc.ONLY suit for 3d printers with motor shaft over 20mm,please measure the shaft length before placing the order. BulletPoint3 : 3.The Extruder Upgraded 1: This idler gear is upgraded with washers on both sides to prevent the extruder base from wearing out as quickly (prevents it from no longer lining up with the gears on the stepper motor). BulletPoint4 : 4.Upgrade 2: This idler gear uses black half-threaded screws (to prevent premature wear of the bearings inside the gear) to increase the life of the extruder. BulletPoint5 : 5.Please calibrate the E-steps from 100 to 139.Need to be assembled by itself.Note:For Vyper users,please swap the motor wire sequence to make it turn forward instead of reverse. ExternallyAssignedProductIdentifier1 : 792288778022 ExternallyAssignedProductIdentifier2 : 0792288778022 IncludedComponents : 2gt 6mm open timing belt with copper buckles ItemName : GBA-SZC Ender 3 Dual Gear Extruder,Dual Drive Metal Extruder for Ender 3 V2/Pro/Ender 5/Plus/CR-6 SE/Ender 3 Neo/Max Neo/CR10/10S/CR10S Pro/Chiron/Vyper/i3 Mega 3D Printer. ItemPackageDimensions_Height : 13.6 centimeters ItemPackageDimensions_Length : 3.1 centimeters ItemPackageDimensions_Width : 10.7 centimeters ItemTypeKeyword : 3d-printer-accessories Manufacturer : GBA-SZC ModelNumber : 1 NumberOfBoxes : 1 NumberOfItems : 1 PackageLevel : unit PartNumber : 1 ProductDescription : 1:Dual gear extruder mechanism, high extrusion force, ensuring smooth feeding. 2:Can be used for nder 3 V2,Ender 3 Pro,Ender 3,Ender 3 Neo,Ender 3 V2 Neo,Ender 3 Max Neo,Ender 5, Ender 5 Pro,CR-6 SE,CR10 S series,Chiron/Vyper/Mega series/Tornado 3D printer etc 3: Note:For Vyper users,please swap the motor wire sequence to make it turn forward instead of reverse. 4:Please calibrate the E-steps from 100 to 139.ONLY suit for 3d printers with motor shaft over 20mm,please measure the shaft length before placing the order. 5:All-metal aluminum alloy, diy aluminum block, need to be assembled by itself. 6:High quality. Stable and durable. 7:Better pressure pushes the filament into the printer nozzle. Package Included: Dual Gear Extruder Single Pneumatic × 1 ProductSiteLaunchDate : 2021-09-08T11:16:49.528Z Size : Extruder Style : Single pneumatic SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1