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How to Change 3D Printer Nozzle

  • 5 min read

How to Change3D Printer Nozzle? (Step by Step)

3D printing, a transformative technology in manufacturing and design, is now a must-have tool for professionals and hobbyists alike. However, a common issue that arises is that 3D printer nozzles get dirty or clog over time. This requires nozzle replacements to ensure the best quality prints. So, how to replace 3D printer nozzle?

In this comprehensive guide, we will walk you through a step-by-step guide on how to change a 3D printer nozzle. Whether you're a 3D printing enthusiast or a newbie, changing a 3D printer nozzle will be a breeze.

Why Should You Change the3D Printer Nozzle?

Before learning how to change a nozzle, let’s first explore why this component's maintenance is essential, so you can decide when and how often to change 3D printer nozzle. Here are some key reasons:

Clogged and Damaged Nozzles

Nozzles can be damaged over time, especially when frequently dealing with high-temperature materials. For instance, brass and stainless steel nozzles tend to wear out when handling abrasive materials like glass fiber-reinforced plastics or those containing metal particles. This may lead to clogs and uneven extrusion flow, ultimately resulting in poor print quality, uneven print layers, and rough surface finishes. Therefore, regular nozzle replacement is crucial to ensure smooth filament flow and prevent print issues.

Increase Print Speed

Nozzle diameter significantly influences both print thickness and speed. Smaller nozzles create finer details but may slow down the printing speed due to thinner layers. Whereas larger nozzles let you print faster by extruding thicker layers and higher material flow, making them ideal for rapid printing, especially when intricate details are not so crucial. For faster prints, you can opt for a larger nozzle (e.g., 0.6mm), which is ideal for objects without intricate details.

High Material Compatibility

Different 3D printing filaments, such as PLA, ABS, and PETG, have different requirements in terms of temperature and nozzle size. Changing the nozzle allows you to select the nozzle that is compatible with the specific 3D printing filament you plan to use. This adaptability ensures a smooth flow of the material during printing and reduces the risk of clogs, filament jams, or uneven extrusion, which could reduce the quality of your prints.

We've now learned 3 reasons why you need to change the printer nozzle. Instead of frequently replacing the nozzle when it is clogged or your prints require a change, you can also pick a 3D printer with an excellent nozzle like the AnkerMake M5 3D Printer for various print speeds and precision requirements. With a brass 0.4mm nozzle, this exceptional 3D printer ensures perfect and quick prints with high precision down to 0.1 mm detail and a print speed up to 500 mm/s, ensuring swift project completion without compromising accuracy. Its built-in AI camera captures the entire printing process for your projects to reduce mistakes and print failures.

Tools for Changing3D Printer Nozzle

To ensure a smooth and successful process of changing the 3D printer nozzle, you'll need to prepare the right tools on hand. Here's the list of the essential tools for you:

Having the right tools on hand is essential, but it's equally vital to prioritize your own safety during the process. Printer components, especially the nozzles and heat blocks, can reach very high temperatures during operation and pose a risk of burns or injury if not handled carefully. Careful handling of tools and wearing appropriate safety equipment such as gloves can prevent such hazards.

How to Change3D Printer Nozzle?

In the following sections, we'll guide you through how to change a 3D printer nozzle with safety measures.

Step 1. Heat up Hotend

Start by powering on the 3D printer and preheating the hot end to the maximum temperature allowed by your printer. This step is critical to soften the internal material and to facilitate the removal of the old nozzle.

Step 2. Remove the Filament

Once the hotend reaches the correct temperature, remove the filament currently in use. You can do this by gently pulling the filament and waiting for it to cool down before removing it from the nozzle.

Step 3. Unscrew the Old Nozzle

Using an appropriate wrench or nozzle pliers, hold the heat block in place, and then gently unscrew and remove the old 3D printer nozzle. Wear safety gloves and handle them carefully to avoid burns or damage to the heating block. Be cautious as old nozzles can be hot.

Step 4. Install a New Nozzle

Align the new nozzle correctly and gently install it onto the heat block with a socket wrench. Ensure it is securely fastened but not overly tightened, as this can damage the new nozzle or the heat block.

 Step 5. Test the New Nozzle

Once the replacement is complete, run a test print to verify that the new nozzle works well. Load the filament and check whether it is extruded properly during the print. If there are clogs or filament leakage, it indicates that the new nozzle needs further tightening. In such a case, use a tool to tighten the nozzle until the issue is resolved.


Before testing your new nozzle, it's important to re-level the print bed since installing a new nozzle may impact the nozzle-to-bed distance. Instead of manually leveling the print bed, consider a 3D printer with automatic bed leveling like the AnkerMake M5C 3D Printer, with which you can enjoy the convenience of automatic bed leveling at the push of a button.

In addition, this printer comes with a host of remarkable features, including a high printing speed of up to 500 mm/s for swift project completion, high precision with 0.1 mm accuracy ensuring top-notch print quality, a robust full aluminum alloy structure for stability and durability, and easy multi-device control to simplify the management of multiple devices.


In conclusion, the ability to change your 3D printer nozzle effectively is a fundamental skill that can make a significant difference in the quality and versatility of your 3D printing projects. This article has covered the reasons for replacing a 3D printer nozzle, the necessary tools, and the detailed steps of how to replace a 3D printer nozzle. By understanding the necessity of nozzle changes and the precise steps involved in the process, you can take control of your 3D printing experience, adapting it to your specific needs and unleashing your creativity with confidence.


How often shouldyou change the3D printer nozzle?

3D printer nozzles are typically recommended for replacement every 3 to 6 months. However, the timing may vary depending on factors such as the type of filament used and the quality of the nozzle. Nozzles used for frequent printing with abrasive filaments or lower-quality nozzles may require more frequent replacements. Understanding these factors can help determine when to replace the 3D printer nozzle for optimal print quality.

Can I reuse the old nozzle?

Certainly, you can consider reusing the old 3D printer nozzle if the nozzle remains in good condition, without significant wear or damage, and your printing requirements are relatively modest.

Before reusing the old nozzle, you should first clean the nozzle thoroughly to remove any residual filament or debris. Proper cleaning can help restore its functionality and prevent potential clogs during printing. Then conduct a test print with the cleaned and inspected nozzle to ensure it meets your current printing needs.

Can I change the nozzle when the 3D printer is hot?

Changing the nozzle on a 3D printer when it is hot is not recommended. The high temperatures can lead to severe burns or other injuries. It also causes issues due to thermal expansion, and when parts cool down, they can be incorrectly secured and sealed, reducing print quality. Moreover, working with a hot printer can potentially damage the printer's delicate internal components, resulting in extra repairs. It's essential to let the printer cool down to a safe temperature before attempting any maintenance, including nozzle replacement.