Project Dashboard Maintenance and Repairs Replacing a LulzBot TAZ Y Axis Motor Workflow

1 Getting Started


At Aleph Objects, Inc. we respect your freedom to modify your LulzBotā„¢ 3D printer. Any modifications or attempted repairs that cause damage are not covered under the Warranty.

Questions? Contact Technical Support by emailing, or by calling +1-970-377-1111.

2 Required Tools

  • Terminated TAZ X Axis Nema 17 Stepper Motor.
  • 2.5mm driver.
  • 1.5mm driver.
  • 1.27mm driver.
  • Zip Tie.
  • Flat Head Screwdriver.
  • Pliers.
Required Tools

3 Power off your 3d Printer

  • Power down your 3D Printer.
  • Unplug the USB Connection, Off Switch and the Power Cable.
Power off

4 Position Printer

  • Position your LulzBot TAZ as shown.
  • You will be working through the base of the printer.
Position Printer
Position Printer

5 Release Y Axis Belt

  • Using your 2.5mm driver remove the belt clamp screw.
  • Remove belt from clamp.
Release Belt
Release Belt

6 Cut Zip Tie

  • Cut the zip tie for the Y axis motor.
Cut Zip Tie

7 Unplug Connector

  • Unplug motor connector.
Unplug Connector

8 Remove Motor

  • Using your 2.5mm Driver remove the 4 screws securing the motor.
  • Lift the TAZ and remove the motor.
Remove Motor
Remove Motor

9 Remove Pulley

  • Using your 1.27mm Driver loosen the two set screws on the pulley.
  • Remove the pulley.
Remove Pulley
Remove Pulley

10 Install Pulley

  • Using the 1.27mm Driver install the pulley onto the new motor.
  • Ensure one set screw is on the flat of the shaft, and that both are tight.
Install Pulley
Install Pulley

11 Install Motor

  • Position motor, wiring to the right.
  • Using your 2mm Driver install the 4 screws removed in step 8.
Install Motor
Install Motor

12 Plug In Connector

  • Plug in motor connector.
Plug In Connector

13 Install Zip Tie

*Secure motor wires using a zip tie.

Secure Wires

14 Route Y Axis Belt

*Route belt around X axis pulley.

Route Y Axis Belt

15 Install Y Axis Belt

  • Using a flat head screwdriver, route and install the belt into the clamp.
  • We want the belt to be slack right now, leave as little excess belt extending from the clamp as possible.
  • Replace the belt clamp screw.
Install Belt
Install Belt
Install Belt
Install Belt

16 Tighten Belt

  • Loosen the left belt clamp.
  • Using pliers, grab the excess belt from the clamp and twist the pliers counterclockwise.
  • While maintaining tension with the pliers, tighten the belt clamp.
Tighten Belt
Tighten Belt
Tighten Belt

17 You're Done!

Verify everything is working properly:

  • Does your Y axis move freely back and forth?

  • Do you feel any rubbing of the belt during movement?

  • Print your favorite test object to verify functionality.

Done! Take me home