Step 8 — Attach Leadscrew to Z Motor
Secure your 1/4" acme coupler to the Z axis stepper shaft approximately 7mm up from
base plate with an M3 set screw.
TIP: You can use a couple of belt tensioner clips as a spacer for the coupler height.
Insert 1/4”-16 acme rod into the other end of coupler and secure into place with an M3 set
screw.
NOTE: If the coupler is too low on the motor shaft the set screws will not bite into the
acme rod. The set screw will seat itself into the threads on the acme rod as it is tightened.
Try lifting up on the threaded rod to make sure it has been secured by the set screw.
REMINDER: Use Threadlocker on your set screws once the coupler is in place.
Step 9 — Insert Z Smooth Rods
Gently tap 250mm 8mm smooth
rods (x2) into the pockets of the Z
axis bar ends (previously
installed).
NOTE: Make sure bars are seated
fully into the bar end pockets.
Click here for a video
demonstration of using a mallet to
insert the Z axis smooth rods into
the Z bar ends.
