This is a great upgrade for low-cost 3D printers like the Creality CR-10 and Ender. It will allow you to adjust the pressure you want to be applied to the filament when it is extruded by adjusting the spring pressure.

This extruder is completely made of aluminum and other high resistance materials, its design is for Bowden extruders with a right-handed clamp. Its accessories are compatible with 1.75mm filaments and 4mm PTFE tubing. Additionally, this kit includes an L-mount bracket for NEMA17 stepper motors (motor is not included) which are commonly used as extrusion motors on reprap machines.