In this article we'll go over how to upgrade the existing plastic extruder assembly to the all metal extruder assembly. The upgrade is quick and easy and provides improved filament feed and print quality

Required Materials

Upgraded Creality All Metal Aluminium Extruder Kit

Step 1

Unload any leftover filament from the extruder and turn the printer off. Also make a note of disconnecting the printer from mains power as an added safety precaution

Unscrew the retention coupling which connects the bowden tube onto the extruder assembly

Step 2

Take the 2.5mm allen wrench supplied with your 3D printer and remove the screw attaching the lever arm to the assembly while applying compression to the arm

Remove the arm and spring from the assembly

Step 3

Remove the spring retaining the spring from the assembly with your printers provided 2.5mm Allen key

Step 4

Remove the 3 screws that connect the extruder assembly to the sterpper motor with the 2.5mm allen key

Note that these screws are holding up the motor so be sure to support the motor when unscrewing to avoid damaging it

Step 5

The next step is optional although we provide a replacement motor gear and recommend you change it

To do this, Remove the two black grub screws using your printers smallest Allen wrench and then pull the gear off the motor

Now, attach the new gear thats provided in the kit and tighten the two black grub screws

Note: You may need to loosen the grub screws on the new gear before it will git onto the motor

Step 6

Attach the new metal extruder housing from the kit onto the motor and secure it using the three new screws provided

Ensure you use the conical head screw in the bottom right countersunk hole

Step 7

Install bearing onto the compression arm using the provided washer and screw

Attach the samllest round head screw onto the side of the extruder arm

Step 8

Attach the assembled arm onto the extruder base and secure it in place

Insert the spring between the arm and extruder end stop

Step 9

Insert the long screw into the extruder end stop and apply a medium tension on the spring and arm assembly

Step 10

Lastly, screw the bowden coupler into the extruder assembly and reinsert the bowden tube into the coupler

Testing

You're all done! Now time for a quick test

firstly check if the extruder gear is lined up with the filament path. If its too low, loosen the grub screw slightly and move the gear upwards while compressing the lever arm

Lastly, rotate the motor to ensure that its able to push filament though. Also pull on the filament slightly to ensure it cant just slip through freely. If it does, untighten the screw holding the lever arm to increase the tension on the filament