How to Home a 3D Printer and What does it mean?

In the world of 3D printing, there’s a term called “homing,” and sometimes people who are getting into 3D printing find this term confusing. In this article, we will delve deeply into what homing means?, how you can home your 3D printer? Etc.

How to home a 3D printer and What does it mean?

Homing is the initial process in which X, Y, and Z Components like Hotend and heatbed move to the end of each axis until they hit the endstop button. This allows the 3D printer to determine the position of the extruder’s coordinates in the XYZ axis. Homing is initiated by running the G28 G-code command before every print. Every 3D printer has a “homing option” in the firmware which you can access from the control display

What does Homing Means

In 3D printing, homing is the starting step where X, Y, and Z Components like Hotend and heatbed move to the end of each axis until they hit the endstop button. This helps the 3D printer to know exactly where its components are in the XYZ axis. 

Before each print, the 3D printer does this homing process, using a command called G28 in its code which is already a preset in most slicing software. This way, the 3D printer begins each job from a known, precise position, priting accurately.

How to home a 3D printer

There are two ways to home your 3D printer: either by using the control interface from the 3D printer’s TFT display or by using Pronterface. Each way has its advantages. Using the control interface from the 3D printer’s TFT display is quick and easy. But let’s say you have built your own DIY 3D printer without a display to control it. In that case, you can use Pronterface for homing or checking if the axes or any other components of your DIY 3D printer are working or not.


Connect Your 3D Printer:

  • Connect your 3D printer to your computer using a USB cable.
  • Open Pronterface on your computer.

Select the Correct COM Port and Baud Rate:

  • In Pronterface, click on the “Connect” button.
  • Select the correct COM port your 3D printer is connected to. You can find this right com port in your computer’s Device Manager (for Windows) or by using terminal commands (for Linux/macOS).
  • Select the correct Baud Rate. Most printers use either 115200 or 250000.

Check Connection:

  • Once you’ve selected the COM port and Baud Rate, click on the “Connect” button in Pronterface.
  • Look for the message that shows a successful connection in the log window. This will confirm your 3D printer is connected.

Home Your Printer:

You have two options to home your 3D printer, 

1. Using Interface:

  • In Pronterface, there should be an option to home your printer in the interface. Look for buttons like “Home All,” “Home X,” “Home Y,” or “Home Z”. It depends upon which axis you want to home.
  • Click the home button to start the homing process. The printer will move the specific axis to its home position.

2. Running G-code:

  • Alternatively, you can home your printer using G-code commands. In the command input box, type “G28” for homing all axes or specific commands like “G28 X” for homing the X-axis.
  • Press Enter to send the G-code command. The printer will start Homing.

3D printer’s TFT control

Homing your 3D printer using its own control interface from the TFT display is pretty straightforward, and there is no additional process. Below is the homing process for the Ender 3, and it’s almost the same in every 3D printer. The only difference is in the phrasing like some 3D printers use “Home,” and some use “Auto Home,” and so on. Every 3D printer comes with a user manual, so you can see into it if you find homing your specific model of 3D printer hard.

Ender 3:

  • Power On: Start your Ender 3 3D printer.
  • Control Interface: Use the printer’s TFT display and control knob.
  • Prepare Menu: Go to the “Prepare” menu on the TFT display.
  • Auto Home Option: Inside the “Prepare” menu, you’ll find the “Auto Home” option.
  • Select Auto Home: Choose “Auto Home” from the menu. The printer will start the homing process, moving the print head and bed to their home positions.


Homing is basically a default thing in all modern days 3d Printers. Every 3D printer manufacturer provides a user manual, which can be very helpful, especially if you find any difficulties in homing your 3d print. By following the instructions given in the manual, you can easily do the homing.


What is Homing in a 3D printer?

  • Homing is the initial process in which X, Y, and Z components, such as the hotend and heatbed, move to the end of each axis until they hit the endstop button. This process helps determine the hotend and heatbed’s location before starting the printing.

Why is Homing important in a 3D printer?

  • Homing is important because without the homing process, the 3D printer is unable to determine the location of the hotend and heatbed. Without this information, the 3D printer cannot start printing. Attempting to print without homing might lead to the printer crashing into the axis ends, causing serious damage to your 3D printer.

What is pronterface?

  • Pronterface is a popular open-source graphical user interface (GUI) software used for controlling 3D printers. It serves as a host software that communicates with the printer’s firmware through USB connection. With pronterface you can control your 3D printer like homing the printer, preheating the hotend and heatbed, and moving the hotend on the X, Y, and Z axes.

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