If you’re looking to improve your Ender 3’s print quality and speed, installing Klipper firmware with a BLTouch for auto bed leveling is a great choice. This guide walks you through the setup process step by step, ensuring a smooth installation.

Why Use Klipper with BLTouch on an Ender 3?

• Faster Print Speeds – Klipper leverages your printer’s hardware for improved performance.
• Better Precision – The BLTouch sensor enables automatic bed leveling, ensuring optimal first-layer adhesion.
• Enhanced Features – Advanced macro support, better motion control, and remote monitoring options.

Prerequisites

Before starting, ensure you have:

• A Creality Ender 3 with Klipper
• A Raspberry Pi (or another host device) with Klipper installed and Mainsail
• BLTouch Installed (genuine or clone)
• USB cable to connect the printer to the Pi
• Access to a terminal (SSH or Serial)

Step: 1 Configure BLTouch in Klipper

1. Import a default printer.cfg downloading it from GitHub
2. Update the printer.cfg file:
   • Include mainsail.cfg in printer.cfg
   • Open your printer.cfg in Mainsail or via SSH:

nano ~/printer_data/config/printer.cfg

1. Add this line at the top (if it’s missing):

[include mainsail.cfg]

3. Add the bltouch configuration:

• Under [stepper_z] replace the endstop_pin value to be like:

endstop_pin: probe:z_virtual_endstop

4. Add the BlTouch section

[bltouch]
sensor_pin: ^PA1 
control_pin: PA0 
x_offset: -45 
y_offset: -10 
z_offset: 2.5

5. Save the configuration and restart Klipper.

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1. Orange Pi Zero LTS board.
2. A microSD card (at least 8GB; a Class 10 or higher is recommended).
3. microSD card reader to connect the card to your computer.
4. A power supply compatible with the Orange Pi Zero LTS (5V/2A recommended).
5. Ethernet cable (optional, for headless setup).
6. A computer for downloading and flashing the Armbian OS.

Step 2: Download the Armbian OS

1. Go to the official Armbian website: https://www.armbian.com.
2. Search for Orange Pi Zero LTS in the supported devices list.
3. Download the recommended Armbian image (choose a version based on your preference: CLI-only or desktop).
   • Example: Armbian_XX_OrangePiZero_LTS_*.img.xz.

Step 3: Write the Armbian Image to the microSD Card

1. Insert the microSD card into your computer.
2. Download and install a disk imaging tool, such as:
   • balenaEtcher: https://www.balena.io/etcher/
   • Rufus (Windows): https://rufus.ie/
3. Flash the Armbian image:
   • Open the imaging tool.
   • Select the downloaded .img.xz file.
   • Choose your microSD card as the target.
   • Click Flash or Start to write the image.
4. Wait until the process completes, then safely eject the microSD card.

Step 4: Insert the microSD Card into the Orange Pi Zero LTS

1. Insert the prepared microSD card into the Orange Pi Zero LTS.
2. Connect the power supply to the board to power it on.

Step 5: Access the Orange Pi Zero LTS

Option 1: Via SSH (Headless Setup)

1. Connect the Orange Pi Zero LTS to your network using an Ethernet cable.
2. Discover its IP address using:
   • Your router’s admin panel.
   • Tools like Advanced IP Scanner or Fing (see the section in the previous guide).
3. Use an SSH client like PuTTY:
   • Hostname: The IP address of the Orange Pi.
   • Port: 22.
   • Username: root.
   • Password: 1234 (default).
4. Upon first login, you’ll be prompted to change the root password and create a new user.

Option 2: Connect via Serial Console (Optional)

1. Use the debug UART pins on the Orange Pi Zero LTS to connect via a USB-to-serial adapter.
2. Access the serial console using a terminal tool like minicom or PuTTY.
   • Baud rate: 115200.

Step 6: Initial Configuration

1. On first boot, complete the initial setup:
   • Set a new root password.
   • Create a non-root user.
   • Configure timezone, language, and other settings.
2. Update the system

sudo apt update && sudo apt upgrade -y

L'articolo How to Install Armbian OS on Orange Pi Zero LTS proviene da MagiForge.

1. Go to the official PuTTY website: https://www.putty.org.
2. Download the appropriate installer for your operating system (Windows/Linux/Mac).
3. Install PuTTY by following the installation instructions.

Step 2: Obtain the IP Address of Your Server

1. Check your server’s documentation or settings for its IP address.
2. If you can’t find the IP address, see IP Discovery Tools below:
   • Advanced IP Scanner (Windows)
     • A free tool to scan your network and list all connected devices with their IP addresses.
     • https://www.advanced-ip-scanner.com
   • Angry IP Scanner (Cross-Platform)

Step 3: Open PuTTY

1. Launch PuTTY from your applications or desktop shortcut.

Step 4: Configure the Connection

1. In the PuTTY Configuration window:
   • Host Name (or IP address): Enter the server’s IP address.
   • Port: Typically, SSH uses port 22 (unless your server uses a custom port).
   • Connection type: Ensure SSH is selected.
2. (Optional) Save the session:
   • Enter a name under Saved Sessions and click Save.

How to Connect via SSH Using PuTTY

Follow this guide to establish an SSH connection to a remote server:

Step 1: Download and Install PuTTY

1. Go to the official PuTTY website: https://www.putty.org.
2. Download the appropriate installer for your operating system (Windows/Linux/Mac).
3. Install PuTTY by following the installation instructions.

Step 2: Obtain the IP Address of Your Server

1. Check your server’s documentation or settings for its IP address.
2. If you can’t find the IP address, see IP Discovery Tools below.

Step 3: Open PuTTY

1. Launch PuTTY from your applications or desktop shortcut.

Step 4: Configure the Connection

1. In the PuTTY Configuration window:
   • Host Name (or IP address): Enter the server’s IP address.
   • Port: Typically, SSH uses port 22 (unless your server uses a custom port).
   • Connection type: Ensure SSH is selected.
2. (Optional) Save the session:
   • Enter a name under Saved Sessions and click Save.

Step 5: Connect to the Server

1. Click Open to initiate the connection.
2. If it’s your first time connecting to the server, PuTTY will display a security alert about the server’s host key. Click Yes to proceed.

Step 6: Log In to the Server

1. A terminal window will appear asking for a username. Enter the username provided by your server administrator.
2. Next, enter the password when prompted. (Note: The password field may not show anything as you type; this is normal for security reasons.)
3. Once authenticated, you’ll have access to the server via SSH.

L'articolo How to Connect via SSH Using PuTTY proviene da MagiForge.