Double Gear Extrusion : The filament is gripped by the dual drive much more firmly with less deformation, so it doesn't jam as much in the tube,
Dual Gear Extruder Grinding Itself Problem
3Dman Dual Gear Extruder Drive Feeder Upgrate for Ender 3 V2
3D Printer Extruders, Creality, E3D
CR10 PRO Upgraded Dual Gear Extruder Double Pulleys Direct
Replacement question : r/3Dprinting
SUNLU Dual Gear Metal Extruder For Ender 3/CR10 Aluminum Extruder
3D Printer Extruders, Creality, E3D
3Dman Dual Gear Extruder Drive Feeder Upgrate for
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Upgraded Replacement CR10S Pro Dual Gear Extruder Dual Drive Gear Aluminum MK8 Metal Extruder Kit for Creality 3D Printer Cr10, CR-10 S4, S5 Ender 3
Double-gear and double-pneumatic joint extrusion structure, high extrusion force, enhancing the feed strength , ensuring smooth feeding, better
3Dman Dual Gear Extruder Drive Feeder Upgrate for Ender 3 V2, Ender 3 Series, Ender 5 Pro, Ender 5 Plus, CR10 Series and Other 3D Printers