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    IR height sensor seems to work ok but when printing all goes wrong

    Scheduled Pinned Locked Moved
    Tuning and tweaking
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    • dmkmediaundefined
      dmkmedia
      last edited by

      i have a 400X400 Bed and i mesh then save and even load before a print but the right-hand side always seems to be too low and the left-hand side seems to high. i can never get a good first layer

      my mesh grid is
      M557 X20:360 Y0:360 S30

      https://dmkitservices.com

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      • dc42undefined
        dc42 administrators
        last edited by

        Please post a screenshot of your height map.

        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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        • dmkmediaundefined
          dmkmedia
          last edited by

          i know its no great but its a fixed bed and cant adjust it

          https://dmkitservices.com

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          • AlexLinundefined
            AlexLin
            last edited by

            No bed level can adjust so much… What is your setup? There must be some serious mechanical issues... Causing this extreme tilt

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            • norbs12undefined
              norbs12
              last edited by

              What surface is your bed? Heard some light sources can affect your IR bed level sensor too.

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              • dmkmediaundefined
                dmkmedia
                last edited by

                its a homemade setup but when i bought the aluminum plate i didn't plan for the heated bed silicon sheet to be the same size exactly.

                so now i cant drill holes in the aluminum sheet.

                so i have to clip it to the Y axis until i work it out

                https://dmkitservices.com

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                • dmkmediaundefined
                  dmkmedia
                  last edited by

                  @norbs12:

                  What surface is your bed? Heard some light sources can affect your IR bed level sensor too.

                  heated aluminum with blue tape

                  https://dmkitservices.com

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                  • dc42undefined
                    dc42 administrators
                    last edited by

                    The IR sensor works very well with blue tape; so as long as there is blue tape over the whole bed, or at least over all the points that you probe, it should work well.

                    From the height map, it looks like the bed isn't parallel to either the X or Y axes. You need to fix that.

                    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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                    • dmkmediaundefined
                      dmkmedia
                      last edited by

                      hows this

                      https://dmkitservices.com

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                      • dmkmediaundefined
                        dmkmedia
                        last edited by

                        this took some time but here also is the full scan

                        https://dmkitservices.com

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                        • dc42undefined
                          dc42 administrators
                          last edited by

                          Those are a lot better. You have mostly sorted out the X axis because it is just slightly low on the right hand side. However, the bed and the Y axis are still not parallel to each other

                          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

                          1 Reply Last reply Reply Quote 0
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