How to Set Up BLTOUCH to Work Only as a Z Stop?

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In the world of 3D printing, BLTOUCH has emerged as a game-changer. This innovative technology offers enhanced precision and accuracy when it comes to the Z stop functionality of your printer. If you’re looking to optimize your 3D printing experience, this article will guide you through the process of setting up BLTOUCH exclusively as a Z stop.

Understanding the BLTOUCH Functionality

Before delving into the setup process, it’s essential to grasp how BLTOUCH operates as a Z stop. Unlike traditional Z stops that rely on mechanical switches, BLTOUCH utilizes a probe to measure the distance between the print bed and the nozzle. This allows for automatic bed leveling and eliminates the need for manual adjustments. The result? Improved print quality and consistency.

Preparing Your 3D Printer for BLTOUCH Installation

Before you can enjoy the benefits of BLTOUCH, you’ll need to prepare your 3D printer for installation. Gather the necessary tools and materials, including a compatible BLTOUCH probe, wiring, and firmware. Consult your printer’s user manual or manufacturer’s website for specific instructions on disassembling and accessing the control board.

Installing BLTOUCH and Configuring Z Stop Functionality

Now that your printer is ready, it’s time to install BLTOUCH and configure it to function solely as a Z stop. Follow these step-by-step instructions:

  1. Mount the BLTOUCH Probe: Carefully position the probe near the nozzle, ensuring it aligns with the print bed’s center. Secure it using the provided screws.

  2. Connect the Wiring: Connect the wires from the BLTOUCH probe to the designated pins on your printer’s control board. Refer to the documentation provided with BLTOUCH for the correct wiring configuration.

  3. Flash the Firmware: Depending on your printer model, you may need to update or modify the firmware to enable BLTOUCH functionality. Download the compatible firmware and follow the manufacturer’s instructions for flashing it onto your printer’s control board.

  4. Configure Z Offset: Once the firmware is updated, you’ll need to set the Z offset value. This value determines the distance between the probe’s trigger point and the nozzle. Calibrate the Z offset by utilizing your printer’s LCD screen or through software interfaces like OctoPrint or PrusaSlicer.

  5. Test and Fine-tune: Run a test print to ensure that BLTOUCH is functioning correctly as the Z stop. Make any necessary adjustments to the Z offset until you achieve optimal first-layer adhesion and precision.

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Troubleshooting and FAQ

As with any technological setup, you may encounter challenges along the way. Here are some common troubleshooting tips:

  • BLTOUCH not triggered: If the probe is not triggering properly, ensure all connections are secure and the wiring is correctly configured. Double-check the firmware settings and ensure the probe’s sensitivity is appropriately adjusted.

  • Inconsistent bed leveling: If you notice uneven prints or inconsistent bed leveling, recalibrate the Z offset. Ensure the print bed is clean and free from any debris that may interfere with the probe’s readings.

  • BLTOUCH not deploying: If the probe fails to deploy or retract, check the wiring connections and ensure the firmware is correctly installed. If the issue persists, consult the manufacturer’s troubleshooting guide or reach out to their support team.


  1. Can I use BLTOUCH with any 3D printer?
    While BLTOUCH is compatible with various 3D printers, it’s essential to check the compatibility with your specific model. Refer to the manufacturer’s documentation or reach out to their support team for guidance.

  2. Do I need any additional software to configure BLTOUCH?
    In most cases, the firmware update and configuration can be done through your printer’s existing software interface. However, some printers may require additional software like OctoPrint or PrusaSlicer for advanced configuration options.

  3. Is BLTOUCH worth the investment?
    BLTOUCH offers significant advantages in terms of print quality, convenience, and accuracy. If you value precise bed leveling and hassle-free printing, BLTOUCH is definitely worth considering.


By setting up BLTOUCH exclusively as your Z stop, you unlock a new level of precision and convenience in your 3D printing endeavors. With automatic bed leveling and improved print quality, BLTOUCH proves to be an invaluable addition to any 3D printer setup. Follow the steps outlined in this article to experience the benefits firsthand. Elevate your printing game with BLTOUCH and enjoy flawless prints every time.

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