4. Z axis

13/17mm spanners

3.6mm flathead screwdriver

Needle-nose pliers

2.5 and 1.5mm hex spanner

Z-endstop-holder

Z-axis-top-left

Z-axis-top-right

Z-axis-bottom-left

Z-axis-bottom-right

Place parts on the frame as shown in the picture

Use 2.5mm hex spanner to tighten the parts to the frame

Place the Z motors on the frame

Z-motor 1 (shortest motor with shortest cables)

Z-motor 2 (shortest motor with second shortest cables)

Use 2.5mm hex spanner to tighten the motor to the printed part

Insert the zipties in the holes at the bottom of the frame

Tie the cables to the frame as shown in the picture

Note that the Z-motor 2 cables aree tied with the last ziptie

Use pliers and cut the excess ziptie

Grab Y-axis assembly in your hand and slide it into the frame. You should be able lift the construct as a whole

Tighten the M10n nuts to the frame

Insert Z-rods (shortest ones) inside the Z-endstop holders

Ensure the correct orientation of parts as shown in the picture

Z rod with Z-endstop holder

Z-endstop (the one with shortest cables)

M2x12 screws

Using 1.5mm hex spanner tighten the endstop to the holder

M5 threaded rods with preassembled hose coupling

Screw the threaded rods inside the nuts in X-axis assembly

Insert the smooth rods in the X-axis assembly

Insert the Z-axis assembly into the top parts of the frame

Insert the rod with attached endstop to the bottom left printed part

Slide the rod all the way down

Make sure that the rod is facing directly to the hole in bottom right printed part (If not, apply some pressure to adjust the pitch between X-ends)

Press the rod inside the part

Grab the end of the M5 threaded with hose coupling

Press the hose coupling all the way on the Z-motor shaft

Twist the Z-endstop-holder as shown in the picture

Slide it all the way down

Slide the heat shrink over the hose coupling

Repeat the step on the other side

M5nC Closed nut

M5n nut

Screw the M5n nut on the Z-axis threaded rods

Screw the M5nc closed nuts on the Z-axis threaded rods as far as you can

Tie the nuts against each other

Using flathead screwdriver, insert the X-GT2 belt (longer one) all the way down into the X-carriage

Guide the X-axis belt through the X-end-motor, around GT2-16 pulley and back

Guide the x-axis belt through X-end-idler, around the 623h bearing with the housing and back

Use pliers to tighten up the X-axis belt

Use a screwdriver to push the belt all the way down to the X-carriage

Congratulations! You've just assembled Z-axis

You can continue by assembling Extruder by clicking on following link

5. Extruder