You should now have your assembled Z Axis
Bearing Plate mounted to your X Axis Bearing
Plate. This is the X & Z Axis Bearing Plate
Assembly. Before you go any further, check
the diagrams again. Did you get the
orientation right?
Congrats on the progress!
We will now route the Z Axis Belt. Fair warning:
Belt installation is one of the trickier parts of the
build for some people, so take your time, read
carefully, and relax.
See the diagram to the right which shows the Z
Plate in front of the X Plate with most of the
unrelated holes removed for clarity. The red
circles are the idler pulleys mounted on the Z
Axis Bearing plate. The blue circles are on the X
Axis Bearing Plate. The top left blue circle is the
top belt anchor point. The blue circle with the
“M” in the middle is the motor pulley. The
smaller blue circle at the bottom is the bottom
belt anchor. The blue circle marked with an “I”
in the middle is an idler pulley.
Install the pulley on the motor shaft. Look
down this assembly from the top so you can
position the motor pulley’s teeth in line with
the idler pulleys. One of the set screws must be
set against the flat of the motor.
The kit came with three sections of belt. Grab the
SHORTEST SECTION OF BELT (900mm) and anchor
it to the threads of the M6 bolt with a zip tie. Loop
it EXACTLY as shown in the diagram and make sure
the teeth of the belt are meshed together. If you
don’t loop it as shown here and zip it together
with the toothed side of the belt, the belt will get
routed backwards. You must zip tie it at a point
that is in line with the pulleys, or the belt will run
off the pulleys. Run the belt around the bottom Z
Axis Bearing Plate Idler Pulley (indicated
Page 17 of 35
