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New Calibration Rods for the Filament Maker TWO

Part of the 2025 Q3 Optimization Kit, the new calibration kit delivers a simpler procedure, more accurate calibration rods, and an improved UI.

Why should I use the new calibration rods? 

  • Accuracy
    The new calibration procedure eliminates some previous inconsistencies. 
  • Simplicity
    It is a simplified and streamlined procedure, limiting potential user or operating errors.
  • 2 new rods
    The two rods are custom made with incredible accuracy.
    Rod A is 1.5 mm
    Rod B is 3 mm
  • Better UI
    This calibration procedure comes with a firmware update and has a more user friendly and informative UI. 
 DSCF5808

 

Warning!

The calibration kit is required before updating to the firmware version 0.3.0, to be released October 2025! After updating the firmware, the machine has to be calibrated with the new calibration kit.

 

Important!

This is a NEW calibration procedure that is carried out with the Optimization Kit, and the new firmware update 0.3.0.

For the previous calibration process, head to this article. Naturally, please ensure you carry out the correct calibration procedure with the correct rods and firmware version. 

Calibration Guide 

The step by step instructions can be found on the new senser view landing page. Below are additional pictures to help illustrate the procedure. 

1. Ensure the machine is turned on, but NOT extruding. We we need to access the extrusion area safely, and without risk of burns.  DSCF5806
2. Open the calibration process panel by entering the IP address of your FM TWO  in your web browser, and add :8000 at the end.

More details here. 		 DSCF5821

3. Follow the steps shown in the Calibration process:

  

 

Step 1: Calibrate Background

  Screenshot 2025-10-07 141822

Step 2: Calibrate with the 2 Rods

As mentioned before, the two rods have incredibly accurate thickness:

Rod A: 1.5

Rod B: 3.0

  DSCF5816

 

 DSCF5815

Step 3: Save Calibration

  Screenshot 2025-10-07 142001

If any of the calibrations fail, the UI will let you know.
It is most likely due to one of the following reasons:

  • the calibrate background was pressed while there is something present in the sensor
  • the calibration A/B button was pressed without the correct rod present
  • the rod was moving around too fast
  • the rod left the range of the camera during movement
  Screenshot 2025-10-07 142107

Continue Reading

This operation is part of the optimization kit for the Filament Maker TWO.