Print height is smaller than expected

  • Hey guyz !

    Prints on my Ender 3 Pro are smaller in height (Z axis) than expected. X and Y size however are accurate.

    I printed some calibration cubes to be sure.
    Difference is about 4%, the height is around 19.15mm instead of 20mm.

    I double checked:

    • E step : perfectly fine
    • Z step : same
    • Z binding : followed a tutorial on youtube, shouldn't be this, but I can't be sure
    • Z axis bar is perfectly flat, no curve or whatever

    What should I investigate on in order to solve this?

  • Anybody?

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