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Bed level

Bed Level

For this panel to appear in the menu [bed_screws] or [screws_tilt_adjust] need to be defined in Klipper config (printer.cfg)

Important

The corner buttons in KlipperScreen place the nozzle above the screw to do the "paper test".

When [screws_tilt_adjust] is defined a couple of things happen:

  • A button named "Screws adjust" appears, it runs SCREWS_TILT_CALCULATE when is pressed, and reports the amount to be adjusted into the labels of the corner buttons.
  • [bed_screws] is now ignored by KlipperScreen. (explained below)
  • The corner buttons are now [screws_tilt_adjust] coordinates with the probe offset applied. (explained below)

Why [bed_screws] are ignored/not used?

[screws_tilt_adjust] positions with offset will be used over [bed_screws], because if the probe offset is changed or the difference between [bed_screws] and [screws_tilt_adjust] wasn't calculated correctly, the "Screws adjust" button stops working correctly.

Why the probe offset is applied to [screws_tilt_adjust]?

Because the corner buttons in KlipperScreen should place the nozzle above the screw to do the "paper test". It doesn't affect the function of SCREWS_TILT_CALCULATE, which will go to the defined positions.

Is BED_SCREWS_ADJUST supported?

No, but you can achieve the same thing by using the corner buttons and going in a circle pattern adjusting until desired. BED_SCREWS_ADJUST is just a helper that moves to the screws in sequence

Limitations

The panel doesn't support more than 9 screws or grids bigger than 3x3.

Rotation

The layout can be rotated if the screen is not directly in front of the machine. in the printer configuration you would add screw_rotation: 90 Valid values are 0 90 180 270

Inversion

The layout will be inverted if an axis is inverted in the move panel

Is there an alternative?

If you have a reliable probe, define [bed_mesh] in Klipper config, remove the springs and use some thread-locker or locking nuts to fix the bed to the gantry, let the probe do a mesh save it and forget about this.