Bed leveling - Phil1988/FreeDi GitHub Wiki

To achieve the best print results, manual bed leveling is highly recommended.

Why Bed Leveling is Important

Out of the box, the print bed is often not perfectly level. An uneven bed can lead to poor and unreliable print results. If your bed is significantly tilted, this step is crucial to ensure high-quality and consistent prints.

Steps to Level the Bed

1. Measure the Bed and Calculate Screw Adjustments

To calculate the necessary adjustments for manual bed leveling, follow these steps:

  1. Make sure you have the print bed attached.

  2. (Optional) Do a bed mesh for a nice before and after comparison πŸ˜‰ Home: image Start the meshing: image Give it a name (eg "before_leveling"): image Save it: image

    1. Start the Bed Level Macro: image

      If you dont have that macro, open the CONSOLE in your Klipper interface.
      Enter the following commands:

      G28
SCREWS_TILT_CALCULATE

    2. Klipper will measure the bed and outputs the screw adjustment instructions: image

2. Interpret the Output

You will see output similar to this example:
image

Or in the Console:

rear left screw : x=36.0, y=292.0, z=1.59150 : adjust CW 02:07

Here’s what this means:

  • Screw location: rear left screw specifies which screw to adjust.
  • Adjustment direction: See the icon or read the console CW means "Clockwise", CCW means "Counterclockwise".
  • Adjustment amount: refers to a clock and 02:07 means "2 full turns and 7 minutes".
    • Example: "Minutes" represent divisions on a clock face. For example:
      • 02:00 = 2 full turns.
      • 02:15 = 2 full turns + 1/4 turn (15 minutes).
      • 02:07 = 2 full turns + 1/8 turn (7 minutes).

For detailed information, see the Klipper Bed Leveling Guide.

3. Adjust the Screws

Lower the bed manually to about half way down. Remove the print bed. You will see 4 screws for the bed - they need to be adjusted. They are countered with a nut from the bottom side, so losen it. Using the instructions from the previous step, adjust each screw manually. Turn the screws them precisely according to the specified number of full turns and minutes. One turn clockwise means: Pne turn clockwise looking "from your screwdriver" to the screw.

When finshed: Reattach the print bed.

4. Perform a Final Measurement

Once all screws have been adjusted, perform another measurement to verify the bed is level.

  1. Open the CONSOLE again and re-enter the commands:
    G28
    SCREWS_TILT_CALCULATE
  2. Check the new output.

Target Result:

  • A good result is achieved when all adjustment values are below 6 minutes.

Optional:

  • Do another mesh calibration and name it "after_leveling" for a nice comparison πŸ˜‰

By following these steps, your print bed should now be properly leveled, ensuring better and more reliable print results.