Troubleshooting
      Back to home
      1. Support home
      2. Filament Maker ONE
      3. Troubleshooting

      Filament Sensor Shows "0" (zero)

      The filament sensor measures the diameter of the extruded filament, however if the reading shows "0" (zero) on either the machine display or DevoVision, there is some troubleshooting to be done.

      Sensor

      This could happen for a number of reasons. Let's go through the possibilities systematically. 

      Note:

      Please note that for the last 3 options, you will need to remove the back panel. 

      Options:

      Waving filament

      Light interference

      Remove back panel

      Loose cable

      Dirty Sensor

      Faulty Sensor

      Waving filament

      At the beginning of the extrusion process, there is a period of finetuning your filament before you can spool it. During this process the imperfect filament might not flow straight down, or might even wave and wind, causing it to miss the sensor completely. This will show up as "0" on both DevoVision graph and the machine interface.

      		 WavingCurling filament_01

       

      Light interference

      The filament sensor, though hidden, can still be quite sensitive to bright, direct light. There is an easy way to check if this is what is causing the faulty sensor reading.

      • Cover the top and front slit of the sensor with some opaque tape, while still allowing the filament to pass through. 

      If this solves the reading issue, then go ahead and use it, but also consider adjusting the lighting in your workspace. 

      Remove back panel

      To continue with the following troubleshooting steps, you will need to remove the back panel.

      Note

      If you are not able to, or are not comfortable doing this, please ask for assistance or Contact Support!

      Loose cable

      Open up the machine casing to gain access to the DevoBoard (main circuit board).

      replacing the winder 11

      Once you have access, trace the cable from the sensor to the DevoBoard.

      •  Unplug it and plug it back in again.

      If this solves the reading issue, great.

      If not, then we can cross out this option, and continue.

      Dirty sensor

      Throughout the machine's use, there is a possibility that some dirt, dust or even polymer residue is caught in between the two glass panels of the sensor. In such a case, you can clean the glass panels of the sensor with a cloth and solvent.

      warning-iso_V2 Caution!

      The sensor is very fragile. This includes subparts like the glass panels. 

      Please be extremely careful to not use too much force when handling the system! Perform the operation above a table and cloth to prevent parts from falling and being damaged. 

      Please find the detailed instructions on how to clean the sensor glass panels.

      If this solves the reading issue, great.

      If not, then we can cross out this option, and continue.

      Faulty sensor

      If all previous options are crossed out and the sensor reading still shows zero, then the sensor is broken. Contact Support and we can send our newest version of the filament sensor. 

      Please follow some of the steps and information found in the sensor glass panel cleaning guide, to remove the old sensor, and install the new one.