Cooling Block Set Screw Inspection

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


This procedure gives the instructions on how to tighten the cooling block set-screw on your machine. A tight set screw prevents:

  • First layer not sticking properly.
  • Inconsistent layers.
  • Cooling block falling out.


Qty Description Specification
1 Hex Key 3 mm

Personal Protective Equipment

Qty Description Specification
1 Safety Glasses N/A

Prepare the Machine

  1. Home XYZ.
  2. Lower the Z-axis by 200 mm.
  3. Push the E-stop button.
  4. Wait until the build chamber, build plate and hot ends are at room temperature.

Tighten the Cooling Block Set-Screw

Do not over-tighten the set screw. This can cause damage to the tool head, cooling block and fastener. Only tighten the screw until it is not loose.

  1. With the 3 mm hex key, tighten the T1 cooling block set screw (1). Cooling Block Set Screw
  2. Do step 1. again with the T0 cooling block set screw.

Test and Return to Service

  1. Release the E-stop button.
  2. Home XYZ.

Last modified: March 12, 2021