Clean and Lubricate Z-Axis

Model [X] AON-M2 [X] AON-M2 2020
Category [X] Preventive [ ] Corrective [ ] Troubleshooting

Summary

The procedure that follows explains how to clean and lubricate the Z-axis of the machine. A properly lubricated Z-axis will prevent:

  • Z-axis binding.
  • Sticky and hard to remove contaminants and debris on the Z-axis lead screws, rods, and/or lead nuts.
  • Loud squeaking and vibration while Z-axis is in motion.
  • Inconsistent print layers.

Tools

Qty Description Specification
1 Wide Flexible Scrub Brush N/A
1 Brass Brush N/A
1 One-Time-Use Brush N/A
A/R Degreaser Spray Nine®
A/R Rags Lint-free
A/R Isopropyl Alcohol 99%

Parts Information

Qty Part Number Description
1 375486CC SuperLube HT E.P. Grease with Syncolon® (PTFE) 400g/14.1oz
1 K-0999-015 Z-Axis Lubricant Field Kit

A Z-Axis Lubricant Field Kit (SKU K-0999-015) is available to purchase. This kit contains the AON3D-approved lubricant and brushes required to maintain the lead screws. Please reach out to our Customer Success team at help@aon3d.com for details.

Personal Protective Equipment

Qty Description Specification
1 Safety Eyewear N/A
A/R Gloves Nitrile

Preparation

  1. Home XYZ.
  2. Push the E-stop button.
  3. Wait until the build chamber, build plate and hot ends are at room temperature.

Identify Linear Bushings

Machines shipped after November 2020 are equipped with greaseless linear bushings.

  1. Identify if the machine is equipped with greased or greaseless linear bushings. Refer to illustration below. Z-Axis - Greased vs Greaseless Bushings

The greaseless linear bushings are identified by the white inner ring (8).

Clean Z-Axis, Underneath

Allow all machine components to reach room temperature prior to proceeding further. Failure to allow components to cool down may result in thermal injury (burns) to personnel.

Z-Axis If the machine is equipped with greased linear bushings, do the steps that follow:

  1. Spray the underside of the four greased linear bushings (1) and two lead nuts (2) with the degreaser.
  2. Let the degreaser soak for 10 minutes.
  3. Remove all grease and contaminants from the four greased linear bushings (1) and two lead nuts (2) with the flexible scrub brush (5), brass brush (6), and clean lint-free rags.
  4. Do steps 1 to 3 until all components are clean.
  5. Release the E-stop button.
  6. Home XYZ.
  7. Lower the Z-axis to the bottom of the build chamber.
  8. Push the E-stop button. Z-Axis - Use Brushes to Remove Grease

If the machine is equipped with greaseless linear bushings, do the steps that follow:

  1. Spray the underside of two lead nuts (2) with the degreaser. Let the degreaser soak for 10 minutes.
  2. Remove all the grease and contaminants from the two lead nuts (2) with the flexible scrub brush (5), brass brush (6), and clean lint-free rags.
  3. Spray the underside of the four greaseless linear bushings (1) with the isopropyl alcohol. Do not use degreaser.
  4. Remove all contaminants from the four greaseless linear bushings (1) with clean lint-free rags.
  5. Do steps 1 to 4 until all components are clean.
  6. Release the E-stop button.
  7. Home XYZ.
  8. Lower the Z-axis to the bottom of the build chamber.
  9. Push the E-stop button.

Clean Z-Axis, Top

If the machine is equipped with greased linear bushings, do the steps that follow:

  1. Spray the degreaser along the full length of the two lead screws (3) and the four linear shafts (4). Let the degreaser soak for 10 minutes.
  2. Spray the degreaser onto the four linear bushings (1) and two lead nuts (2). Let the degreaser soak for 10 minutes.
  3. Remove all grease and contaminants from the two lead screws (3), four linear shafts (4), two lead nuts (2), and four linear bushings (1) with the flexible scrub brush (5), brass brush (6), and clean lint-free rags.
  4. Do steps 1 to 3 until all components are clean.

If the machine is equipped with greaseless linear bushings, do the steps that follow:

  1. Spray the degreaser along the full length of the two lead screws (3) and onto the two lead nuts (2). Let the degreaser soak for 10 minutes.
  2. Remove all the grease and contaminants from the two lead screws (3) and two lead nuts (2) with the flexible scrub brush (5), brass brush (6), and clean lint-free rags.
  3. Spray isopropyl alcohol along the full length of the four linear shafts (4) and onto the four greaseless linear bushings (1). Do not use degreaser.
  4. Remove all contaminants from the four greaseless linear bushings (1) and four linear shafts (4) with clean lint-free rags.
  5. Do steps 1 to 4 until all components are clean. Z-Axis - Before and After Cleaning

Lubricate Z-Axis Components

The only lubricant approved by AON3D for Z-axis motion components is SuperLube HT E.P. Grease with Syncolon® (PTFE) grease. Failure to use SuperLube HT E.P. Grease with Syncolon® (PTFE) grease can cause Z-axis to bind, squeak, and/or vibrate. The use of improper lubricant will create sticky and hard to remove contaminants and debris on the Z-axis lead screws, rods, and/or lead nuts, that will result in inconsistent print layers.

Do not operate the Z-axis bed assembly when the lead screws, lead nuts, and/or greaseable linear bushings are not lubricated.

Do not apply grease to greaseless linear surfaces and/or components. Greaseless linear bushings are designed to travel only on surfaces without grease. If the machine is equipped with four greaseless linear bushings (1), do not apply grease to the four linear shafts (4).

  1. Apply a thin layer of grease along the full length of the four linear shafts (4) and two lead screws (3) with the one-time-use brush (7). Z-Axis - Use Brush to Apply Grease
  2. Release the E-stop button.
  3. Home XYZ.
  4. Lower the Z-axis by 300 mm.
  5. Push the E-stop button.
  6. Remove excess grease from the top and at the bottom of all four greaseable linear bushings (1) and the two lead nuts (2) with a clean lint-free rag. Z-Axis - Remove Accumulated Grease
  7. Inspect greased components and make sure there is a thin layer of grease where necessary. Apply a thin layer of grease where necessary.
  8. Release the E-stop button.
  9. Do the steps that follow:
    1. Lower the Z-axis to the bottom of the build chamber.
    2. Home XYZ.
  10. Lower the Z-axis by 300 mm.
  11. Push the E-stop button.
  12. Remove excess grease from the top and at the bottom of all four greaseable linear bushings (1) and the two lead nuts (2) with a clean lint-free rag.

Test and Return to Service

  1. Release the E-stop button.
  2. Home XYZ.
  3. Check Z-Axis Lubricant.

Last modified: June 18, 2021