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    Calibrate bed temp

    Tuning and tweaking
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    • Exerqtor
      Exerqtor last edited by Exerqtor

      Is it any way to calibrate the temp reading from the printbed in RRF3?

      I have a PT100 on sensor on my hotend so i trust that reading more than the thermistor. The bed temp 1,9c lower than the reading from the PT100, so i would want to adjust for that.

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      • Veti
        Veti last edited by

        thermistors are inherently more inaccurate.
        normally the thermistors are just stuck to the underside of the bed with some kapton tape.
        just get a pt1000 (or even a pt100) like this https://de.aliexpress.com/item/32872179878.html and use for the bed.

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        • Exerqtor
          Exerqtor @Veti last edited by

          @Veti said in Calibrate bed temp:

          thermistors are inherently more inaccurate.
          normally the thermistors are just stuck to the underside of the bed with some kapton tape.
          just get a pt1000 (or even a pt100) like this https://de.aliexpress.com/item/32872179878.html and use for the bed.

          That's absolutely an alternative, which of those PT100's would do the trick? (Car mechanic here, so electronic's ain't my strong suit lol).

          Veti 1 Reply Last reply Reply Quote 0
          • Veti
            Veti @Exerqtor last edited by

            @Exerqtor

            the one with the lowest tolerance. PT100 Class A.
            I have not used a PT100 on the bed, so i dont know how it is in terms of interference.
            i use a pt1000 (you can connect them like normal thermistors)

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            • Exerqtor
              Exerqtor @Veti last edited by Exerqtor

              @Veti
              Hmm ok, meh might as well order one of both for the sake of experimenting 😅 thanks for the link 😘

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