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    Fiber Optic Extension?

    IR Height Sensor
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    • gtj0
      gtj0 last edited by

      So, I'm working through the process of designing a mount that gets as close to nozzle as possible without causing heat issues and blocking access to the nozzle and I thought "there has to be a better way". What I was thinking of was an arrangement where you could epoxy 3 strands of glass fiber (can't be plastic or it would melt) to the SMDs, then drill a hole straight down through the fins on the heat sink and down through the heater block as close to the filament path as possible, then routing the fibers through that so they come out at the bottom right next to the nozzle. Of course, the distance and angle of the 3 fibers would have to match the existing setup or some reprogramming would be needed and I'm sure there are other issues I haven't thought of.

      Thoughts?

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      • dc42
        dc42 administrators last edited by

        That's an interesting idea! What I don't know is whether you could couple enough of the light from the LED into a small fibre.

        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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        • gtj0
          gtj0 last edited by

          Yeah it might have to be a larger diameter multi-mode fiber. What is the sensor actually measuring?

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          • dc42
            dc42 administrators last edited by

            The sensor looks for the point where equal amounts of light are reflected into the phototransistor from each IR emitter.

            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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