H) Z Motors and Leadscrews
Tools
Parts
Step 1 — Thread Anti-Backlash Nuts on Leadscrews (x3)
- Compress the anti-backlash nut and thread it onto the leadscrew. Once the threads are fully through the nut, release the tension on the spring.
- Thread the nut half way up the leadscrew.
Step 2 — Install Z Motors (x3)
- Using (4) M3 x 10 socket head screws and (4) M3 washers attach the stepper motor to the base.
- Note For easy cable management later, point the cable plugs toward the rear of the machine.
- Caution If your Z towers are still loose, make sure they are centered over the mounting holes for the stepper motors before installing the motors.
Step 3 — Install Leadscrews (x3)
- Slide the small side of the coupler on the stepper shaft and tighten the set screw on the bottom half.
- Raise the Z yoke and slide the leadscrew up through the yoke.
- Set the leadscrew in the top half of the coupler and tighten the set screw.
- Slide the yoke half way down the Z tower so it is flush with the top of the anti-backlash nut.
Step 4 — Tighten Z Yokes to Anti-backlash Nuts (x3)
- Using (4) M3 x 10 socket head screws, attach the Z Yokes to the anti-backlash nuts.
- If your Z towers are still loose, or not aligned with the leadscrew, now is the time to align and tighten them.
- Note Turn the coupler by hand to make sure the yoke move freely.
- Caution Be careful when tightening the screw attaching the yokes to the anti-backlash nuts. POM will easily strip if you are not careful.
Originally at https://railcore.dozuki.com/Guide/H)+Z+Motors+and+Leadscrews/30