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    Maximize heater sampling rate for troubleshooting

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    • Yonkiman
      Yonkiman last edited by

      I just had a heater fault stop my print about 18 hours into the print. It's clearly something that fails very infrequently. I've been moving/tapping wires and couplers to try to catch the temperature jumping but haven't been able to.

      I was thinking that it would be great to have a test mode where the temp for a chosen heater could be sampled as fast as possible and displayed on the temp graph. That way (hopefully) I could tap/wiggle things around, and a disconnect as short as a few ms would be captured, narrowing down what part of the wiring I need to rewire.

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      • dc42
        dc42 administrators last edited by

        You an use M135 to adjust the temperature sampling interval, see https://duet3d.dozuki.com/Wiki/Gcode?revisionid=HEAD#Section_M135_Set_PID_sample_interval. Odd things may happen if you set it too low.

        Duet WiFi hardware designer and firmware engineer
        Please do not ask me for Duet support via PM or email, use the forum
        http://www.escher3d.com, https://miscsolutions.wordpress.com

        Yonkiman 1 Reply Last reply Reply Quote 0
        • Yonkiman
          Yonkiman @dc42 last edited by

          @dc42 Thanks - that should help debug.

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