Installing BLTouch Auto-Leveling on the Creality Ender 5 Pro

Upgrading your Creality Ender 5 Pro with a BLTouch probe for auto-bed leveling will ensure your prints have perfect first layers every time and greatly reduce issues with bed adhesion. Additionally, the BLTouch probe allows better tolerances for slightly warped print beds by measuring and compensating for any inconsistencies. Many premium 3D printers include this feature standard, but fortunately it can also be installed on many lower cost 3D printers as an upgrade.

For more information on why we recommend the BL-touch sensor, refer to our Auto Bed Leveling Guide.

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Required Materials

• Creality Ender 5 Pro BLTouch Upgrade Kit (Amazon link).
  Includes:

  • BLTouch sensor

  • BLTouch cable

  • Ender 5 Pro mounting bracket

• Allen wrenches included with printer

How to Install the BLTouch Automatic Bed Leveling Kit on Your Ender 5 Pro

Mount the BLTouch sensor to the hot end carriage

First, you will need to mount the probe on the printer using the provided bracket:

1. Use the 2 screws included in the kit to mount the BLTouch sensor to the bracket.

2. Remove the two screws holding the hot end enclosure onto the carriage.

3. Place the mount above the enclosure so that the screw holes are aligned.

4. Use the screws you removed to attach the sensor bracket and the hot end enclosure to the carriage.

5. Connect the small white port on the cable to the BLTouch sensor. Make sure it is facing the correct direction (it will only fit one way).

6. Use the included zip ties to route the BLTouch cable along the hot end cable toward the mainboard.

Connect the BLTouch Sensor Cable to the 3D Printer Mainboard

Before the next steps, you’ll need to gain access to the mainboard of your Ender 5 Pro. The mainboard is accessible from the underside of the printer. Use the image below to find the four screws. Note that the cover piece you remove includes a fan that is attached to the mainboard. Unplug the fan so you can set the cover aside

Calibrate the Z offset for the BLTouch probe

The updated printer firmware will allow you to set the Z offset, which controls the position that the printer considers to be “0” directly on the print bed. Follow these steps to calibrate the offset:

1. Auto home the 3D printer.

2. Place a sheet of paper under the nozzle, then move the Z position (Prepare » Move Axis » Move Z) until you can feel resistance on the paper but you can still move it. Write down the ending value (it may be negative).

3. Navigate to Control » Motion » Z Offset. Adjust the value by the amount from the previous step (for example, if the recorded value is -.4, adjust the value to be .4 less than the current value).

4. Under Control, select Store Settings to save the offset. Note that some firmware versions store this on the SD card and not on the printer itself

5. Power the printer off and back on, then auto home the printer, and verify that the nozzle is positioned correctly.

6. In the same menu, select Disable Stepper to unlock the motors, and repeat the leveling process at each corner (just like standard leveling).

   1. Move the nozzle to a corner of the bed.

   2. Place your sheet of paper and adjust the leveling knob until you feel some resistance when moving the paper.

   3. Repeat on each corner.

7. Now that the bed is level, fine tune your Z offset by repeating steps 2-4.

8. Replace the Gcode command “G28” in your slicer’s starting script with “G28 G29” to run mesh bed leveling before each print.

You are now ready to run a test print! We recommend testing with a model that has a large footprint to make sure the leveling is correct. If you notice that the first layer is too high or too low, you can “live adjust” the Z offset in the Tune menu if you notice that the first layer of your test print is too high or too low. Any changes you make here will persist for future prints as well.