diff --git a/creality-ender3/README.md b/creality-ender3/README.md
index 31843e8..140ea55 100644
--- a/creality-ender3/README.md
+++ b/creality-ender3/README.md
@@ -6,6 +6,7 @@
 4. [Filament set up](#filament-set-up)
 5. [Marlin custom firmware](#marlin-custom-firmware)
 6. [3D printed custom parts](#3d-printed-custom-parts)
+7. [Printer calibration](#printer-calibration)
 
 # Octoprint backup archive
 
@@ -203,4 +204,13 @@ Proceed with the different calibrations in the above order:
 | Aukey LM1 WebCam holder | N/A | ![show off](images/mods/aukey-LM1-webcam-holder.jpg) |
 | PSU exhaust fan silencer | [Printable](https://www.printables.com/model/84197-60mm-exhaust-fan-silencer-flowmaster-psu-ender3nep/comments#preview.file.GpvjC) | ![show off](images/mods/psu-exhaust-fan-silencer.jpg) |
 | Tool holder | [Local](local-stl/Tools_Holder_v3.stl) | ![show off](images/mods/tool-holder.jpg) |
-| SATSANA Ender 3 - BLTouch (Z-Offset: X-51 ; Y-12) | [Printable](https://www.printables.com/model/58601-satsana-ender3-bltouch-fixed) | ![show off](images/mods/satsana-bltouch-for-hotend.webp) |
\ No newline at end of file
+| SATSANA Ender 3 - BLTouch (Z-Offset: X-51 ; Y-12) | [Printable](https://www.printables.com/model/58601-satsana-ender3-bltouch-fixed) | ![show off](images/mods/satsana-bltouch-for-hotend.webp) |
+
+# Printer calibration
+
+## Bed leveling
+
+To have a printer bed properly leveled when you make changes to the printer, here the list of operations to be done in that exact order:
+1. **Calibrate the Z-Offset**. On Ender 3 screen menu, select : `Motion > Z Probe Wizard`.
+2. **Do a bed tramming** (a.k.a manual bed leveling). On Ender 3 screen menu, select: `Motion > Tramming Wizard`.
+3. **Do an automatic bed leveling (ABL)**. In Octoprint, go to `Bed Visualizer` plugin UI and click `Update Mesh Now` button.
\ No newline at end of file
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