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    Z Stop -vs- Z Probe

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    • josephsaanundefined
      josephsaan
      last edited by

      I'm new at this when I say new I mean "like yesterday new". I have a question that might seem really dumb, but here goes. I have a Mini Differential IR Height Sensor and I'm wondering why does it have to be connected to the Z Probe pins on the Duet 2 wifi and not the Z Stop?

      dc42undefined 1 Reply Last reply Reply Quote 0
      • Phaedruxundefined
        Phaedrux Moderator
        last edited by

        Because it's a probe?

        Actually I think you can connect it to and endstop if you just wanted to use it as a simple endstop switch. But when it's working as an analogue probe to measure the distance to the bed I think there's something special about the probe sense pin that the endstop pin lacks.

        Z-Bot CoreXY Build | Thingiverse Profile

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        • dc42undefined
          dc42 administrators @josephsaan
          last edited by

          @josephsaan said in Z Stop -vs- Z Probe:

          I'm new at this when I say new I mean "like yesterday new". I have a question that might seem really dumb, but here goes. I have a Mini Differential IR Height Sensor and I'm wondering why does it have to be connected to the Z Probe pins on the Duet 2 wifi and not the Z Stop?

          Mainly because RepRapFirmware treats a Z-probe (which is a device that can probe the bed at different XY positions) differently from a Z endstop (which is insensitive to the XY position of the print head). It's possible to have both.

          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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          • Phaedruxundefined
            Phaedrux Moderator
            last edited by

            Here's a recent thread discussing using the IR Probe as an endstop: https://forum.duet3d.com/topic/10634/ir-probe-question

            Z-Bot CoreXY Build | Thingiverse Profile

            josephsaanundefined 1 Reply Last reply Reply Quote 0
            • josephsaanundefined
              josephsaan
              last edited by

              I would like to say "thanks" to both of you's (dc42 and Phaedrux) for sharing your vast wealth of knowledge on this subject. It's members like you two that makes this hobby possible for the rest us(newbies). Thanks again for your help.

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              • josephsaanundefined
                josephsaan @Phaedrux
                last edited by

                @phaedrux Thanks it's answered a lot of my questions and then some.

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