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    Stall detection for extruders?

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    • sungod3kundefined
      sungod3k
      last edited by

      Hi, im playing with some new materials and since im usually printing with higher than normal print speeds/ volumes I encountered some nozzle blockages. My bondtec usually chews through the filament rather quickly so its not a big issue, but I was wondering if I could configure stall detection for the extruder.

      The wiki article mentions that stall detection doesnt work well on low speeds, so I wonder does a 5:1 geared down extruder motor count as low speed?
      Also stall detection can already be implemented for filament loading, so using it during print seems like the next step.

      This could replace the need for an external filament sensor..

      http://www.42dimensions.de/
      https://printnewworlds.blogspot.com/

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      • dc42undefined
        dc42 administrators
        last edited by

        According to Trinamic, the minimum motor speed for stall detection to work is about 1 rev/sec. So I don't think extruder stall detection would work even with 5:1 reduction.

        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

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

          @dc42 said in Stall detection for extruders?:

          According to Trinamic, the minimum motor speed for stall detection to work is about 1 rev/sec. So I don't think extruder stall detection would work even with 5:1 reduction.

          What about with a 30:1 with something like a Zesty Nimble?

          dc42undefined 1 Reply Last reply Reply Quote 0
          • dc42undefined
            dc42 administrators @PastThePoint
            last edited by

            @PastThePoint said in Stall detection for extruders?:

            @dc42 said in Stall detection for extruders?:

            According to Trinamic, the minimum motor speed for stall detection to work is about 1 rev/sec. So I don't think extruder stall detection would work even with 5:1 reduction.

            What about with a 30:1 with something like a Zesty Nimble?

            You will need to do the sums. Trinamic suggests the minimum speed for stall detection to work reliably is about 1 rev/second.

            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

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