04. Z motor mounts

Thread the Cap Head Screws M6x20 screws through the lead_screw_motor_cage_front part

Attach the 3030 M6 T-nuts

Repeat the same twice - in the case of those Z mounts the left and right assemblies are the same

Attach the NEMA17 stepper motor to the printed part through the pillow_block part with the Cap Head M3x18 screws

Apply a small amount of bearing grease to the thrust bearing. this will decrease wear and prolong the life of the bearing. Regular servicing should include cleaning and replacing grease.

Insert the thrust bearing into the pillow block

Attach the coupler

The coupler needs to rest on the thrust bearing for the bearing to take the load off the motor shaft. Use the coupler to press the bearing down into the printed part until you hear a "click".

Repeat this step for the other side of the printer

Be mindful about how the motor wires are aligned, rotate the motor if needed. Routing the wires to the back of the printer gives the opportunity for a clean build

Thread the two Cap Head M6x12 screws through the lead_screw_motor_cage_back printed part

Attach the 3030 M6 T-nuts on the back

Attach the NEMA17 stepper motor to the printed part through the pillow_block part with the Cap Head M3x18 screws

Apply a small amount of bearing grease to the thrust bearing. this will decrease wear and prolong the life of the bearing. Regular servicing should include cleaning and replacing grease.

Insert the thrust bearing into the pillow block

Attach the coupler

The coupler needs to rest on the thrust bearing for the bearing to take the load of the motor shaft

If you want to install a bottom panel: DO IT NOW, before you install Z motor mounts

Put the assembly in the bottom-front corner of the frame

Loosely bolt the assembly

You'll likely notice there's room for adjustment - this will be important later

Slide the back motor assembly onto the frame. Bolt it loosely

Slide the 3030 M6 T-nuts under the back side of the part

Loosely bolt the part from the top with the Cap Head M6x20 screws

In the final steps of the assembly the Z motor mounts will need to be adjusted in their XY positions to ensure the lead screws are parallel to the rails