Aibecy 3D Printer Parts Upgraded Dual Drive BMG Extruder

Features:
BMG extruder is designed to suit most DIY 3D printers like ender 3 whether it's proximal extrusion or distal extrusion, good product for 3D printer upgrading. Suitable for 1.75mm PLA, PCL, PTEG, ABS, etc, especially for flexible filament such as TPU.
The filament control gears are made of German CNC which are perfectly matched to each other with little gap. It helps avoid filament slipping especially for soft filament like TPU.
Adjusting the tensioner to find suitable tightness. You can use any FDM filament with it. The shell is made of high hardness ABS which is more durable.
Compared to normal extruder(1 gear with 1 idler pulley) , BMG double gears provide high precision controlling of filament extrusion to prevent extruder from step losing.
With 3:1 deceleration torque, users can control the extruder with high precision. And it's easier to adjust manually.