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How does the Laser Filament Data Processing work?

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Filament Monitor
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  • undefined
    Hornetrider
    last edited by 27 Jun 2019, 08:32

    Hi

    I have been using the laser filament sensor for a while now, and must say, I am quite happy. Even without changing values due to filament properties...
    Especially as it reacts as a "run out" and different extrusion situations.

    But...
    As I understand the sensor sends the data and the DUET does the math, right?
    I would really like to learn how the DUET2 evaluates and calculates the signals from the sensor.

    So, what is the math behind it?
    Is there a time constant for vallues, so the reaction is a bit delayed?
    Is there any way to compensate for high fluctuating valuees during print?

    From my perpective the most crucial function ist to detect a fliament run out.
    Under or over extrusion are secondary.

    Is there a way to have the filament run-out solved by FW regardless of the values, or do we really need to integrate a switch?

    Looking forward for your inputs.

    Cheers

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    • ?
      A Former User
      last edited by 27 Jun 2019, 09:08

      its all open source ..

      https://github.com/T3P3/FilamentMonitors/tree/master/Filament_Monitor_Laser_v1.7
      and
      https://github.com/dc42/RepRapFirmware

      i believe

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