Auto Bed Level Enhancement - Ender 3 V3 SE

This is an adjustment to the stock firmware for the Ender 3 V3 SE which aims to increase accuracy for Auto Bed Leveling.
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updated January 15, 2025

Description

PDF

Caution - Use at your own risk. If not done carefully, you can brick your machine. 

BEFORE ATTEMPTING TO USE - Ensure you are already running the stock 1.0.6 firmware before installation. After downloading your zip file, check the zip file's MD5 hash against the MD5 hashes I posted below to ensure that you don't have a corrupted file:

4x4 - 4 Probe Firmware: bf9644e18d6dbdde567c8e1a91b1a61b

4x4 - 6 Probe Firmware: 9f902fbe1c41fdad19182dca6cab6cdb

4x4 - 8 Probe Firmware: 753d51577af12e1a6bff6600547b290f

7x7 - 4 Probe Firmware: 72ef22f5beba7728efe6edd0e3f6ce7c


 

This is a small configuration change for the stock Ender 3 V3 SE firmware v1.0.6.

  • This change increases the amount of probes done per zone (v1.0.6 default is 2) when Auto Bed Leveling which increases overall accuracy. No other adjustments have been made to the v1.0.6 firmware.
  • There are three versions available for download. Each uses a different number of probe touches during Auto Bed Leveling. The number is indicated in the name of the .zip file for that particular firmware version.

 

Personally, I use the 8 Probe version as I've found the most reliability with this one but feel free to try the other two as well.

Installation is very easy and quick. Instructions are included in the .zip files but feel free to use the official Creality instructions at https://www.creality.com/pages/download-ender-3-v3-se

 

UPDATE (10/23/24):

  • You can now increase your grid size to 7x7 with a 4Probe count. (Probe count greater than this causes loop error)
  • This is a modification on the work of aschmitt1909 which also implements Linear Advance.

 

Required Hardware - SD Card or Micro SD with adapter.

 

TROUBLESHOOTING TIP - if the machine is not taking to the re-format and you’ve already tried renaming the file, you may need to reformat the SD card and then try again. The card format should be Fat32 with 4096 allocation. 

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