eggspresso

@eggspresso@sh.itjust.works

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⁨Comment⁩ on ⁨I should have checked this a long time ago...⁩ ⁨⁨1⁩ ⁨year⁩ ago⁩:
Keep in mind IR thermometers are sensitive to the reflectivity/emissivity of the materials they are used on, and the shiny PEI surface can be a bit tricky. Try measuring the temperature of a mirror that your warmed up with your hand and you’ll see a similar problem.

If you want to test more accurately, put some matte tape on the bed and then measure the temperature then.

That said there is also a chance for the heat bed to be a bit lower than target temperature, since the temperature control and feedback occurs at the bottom of the bed where the thermistor is, not at the top, and is separated by a layer of magnetic adhesive and coated metal.