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How to Change Ender 3 (Pro/V2) Nozzle in 5 Easy Steps

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Featured image with a nozzle of Ender 3 printer in the back.
Anker Maker 3D Pinter.

Ender 3 users, are you looking for a personalized guide on how to change your nozzle?

Look no further!

This guide will give you all the information you need to know about changing your nozzle, including the different types of nozzle available and the different factors to consider before upgrading. 

So, let us get started!

To shortly describe how to change the nozzle on your Ender 3 (Pro/V2), follow these steps:

  1. Heating Up the Hotend
  2. Replacing the Nozzle
  3. Screwing in the New Nozzle
  4. Replacing the Hotend Cooling Fan
  5. Checking for Leaks and Testing

How to Change Nozzle on An Ender 3 (Pro/V2)

Ender 3 Pro has become a name under 3D printing beginners.

It is a solid, low-cost machine which do not compromise the quality of your prints.

Practical and simple design with LCD monitor is something I really appreciate.

This printer could compete with any printer from a higher price class. So you can implement many of your 3D printing idea with Ender 3 Pro.

In this article, I will walk you through the process of changing the nozzle on your Ender 3 (Pro/V2) step by step.

I’ll also cover some important considerations to keep in mind before upgrading your nozzle, as well as some common issues you may encounter after changing your nozzle.

Tools Required

Before I begin, there are a few tools you will need:

  • A set of Allen keys
  • A set of pliers
  • A wrench 
  • A new nozzle (I recommend brass or hardened steel)

Now that you have everything you need let’s get started!

The process is fairly straightforward and can be completed in just a few steps.

Step 1: Heating Up the Hotend

Heat up the hotend of the printer using the heating element.

This will expand the threads on the nozzle, making it easier to screw in the new nozzle.

To do this, go to Control, then temperature, select nozzle, and adjust the temperature.

Be careful not to touch the nozzle with your bare hands as it will be very hot.

Step 2: Replacing the Nozzle

Once the hotend is heated up, remove the old nozzle from the hotend assembly.

You will also need to remove the fan shroud and the silicon sock.

To do this, use the Allen keys to unscrew the two bolts that attach the fan shroud to the print head.

First, remove the screw that secures the hotend cooling fan to the hotend assembly.

Then, remove the silicon sock. Then, use the pair of pliers to grip onto the heater block and unscrew the nozzle clockwise. 

Step 3: Screwing in the New Nozzle

Use the wrench to screw in the new nozzle.

Be careful not to over-tighten it, as this could damage the hotend.

Once the new nozzle is screwed in, heat up the hotend again.

This will ensure that the nozzle is appropriately aligned and won’t come loose. Tighten the nozzle with the wrench. 

Step 4: Replacing the Hotend Cooling Fan

Once the new nozzle is securely in place, replace the screw that secures the hotend cooling fan.

Step 5: Checking for Leaks and Testing

Lastly, check that all connections are secure and there are no leaks.

Once you’ve done this, you’re ready to start printing. Now, test the new nozzle by printing a small object.

Important Considerations Before Upgrading Nozzle

Before upgrading your nozzle, there are a few essential things to keep in mind:

Supported Nozzle Sizes

Ender 3 (Pro/V2) supports nozzle sizes of 0.4 mm, 0.5 mm, 0.6 mm, 0.8 mm, and 1.0 mm.

The Ender 3 (Pro/V2) printers come with a 0.4 mm nozzle as standard, but you can upgrade to a 0.6 mm or 0.8 mm nozzle if you want.

The size you choose will depend on the type of printing you are doing.

A smaller nozzle size will be fine if you are mostly printing small objects.

But if you’re planning on doing a lot of large prints, you’ll need a larger nozzle.

Just be cautious of using a 1.0 mm nozzle, as the stock Ender 3 hotend may have difficulty pushing that much plastic.

Durability of Material

The durability of your nozzle will depend on its material composition.

Brass and hardened steel are popular materials for nozzles because they offer good durability and resistance to wear and tear.

Brass, for example, is durable but can sometimes cause prints to have a “brassy” appearance.

Hardened steel is also very durable, but it can be more challenging to work with than other materials.

However, other materials, such as ceramic or titanium, can also be used depending on your specific needs and requirements.

Ceramics is an excellent middle ground between the two, it is durable.

It produces high-quality prints, but it can be more expensive than other options.

Hotend Material

Finally, you’ll need to decide whether you want an all-metal hotend or not.

All-metal hotends can print at higher temperatures than plastic hotends, so they are great for printing with materials like ABS and nylon.

But they are also more expensive, so it is crucial to weigh your options before deciding.

4. When to Replace Ender 3 Nozzle?

Several signs indicate that it is time to replace the ender 3 nozzle (Pro/V2): 

Damaged Nozzle Diameter

If you notice that the diameter of your prints is beginning to decrease, it’s probably time to replace your nozzle.

This is usually caused by wear and tear inside the nozzle opening over time.

Nozzle Chamber has Marks 

Another sign that it’s time for a new nozzle is if you see marks or scratches on the inside of the hotend chamber where your old nozzle was installed.

These marks can cause printing issues such as poor layer adhesion or uneven extrusion rates.

Shortened Nozzle Tip

Over time, repeated heating and cooling cycles can cause the tip of your nozzle to become shortened or deformed.

This can lead to poor print quality and increased stringing. It is also worth noting that different materials will wear down your nozzle at different rates.

For example, printing with ABS plastic will cause more wear and tear than printing with PLA plastic.

As such, if you frequently print with ABS plastic, you may need to change your nozzle more often than someone who only prints with PLA.

Declining Print Quality

One of the most common signs that it’s time to change your 3D printer nozzle is declining print quality.

If you notice that your prints are coming out less crisp and detailed than they used to, your nozzle is likely the culprit.

It could be due to several factors, including an obstructed or damaged nozzle. In this case, replacing your nozzle is likely to improve print quality. 

Commonly Encountered Issues with New Nozzle

When you upgrade or replace the nozzle on your 3D printer, you may encounter one or more of the following common issues.

By being aware of them, you can avoid any problems and ensure that your prints come out just the way you want them to.


One common issue that can occur is called “stringing”.

This happens when the 3D printer nozzle is not adequately calibrated, improperly installed or configured a new nozzle, or when there’s a build-up of filament on the nozzle.

You can identify stringing when small strings of filament are left behind between objects in your print.

This can cause stringy lines or blobs on your print.

Stringing can be avoided by properly calibrating the 3D printer nozzle and by keeping the nozzle clean. 

Wrong Settings

Another common issue is wrong settings.

This can happen when you change the nozzle on your 3D printer.

If the settings are wrong, it can cause the prints to come out wrong or have poor quality.

Incorrect settings can also lead to stringing as well as other printing issues, such as poor layer adhesion or uneven extrusion rates.

Make sure to check your settings before printing with your new nozzle. 

New Nozzle Not Heating Up

Another thing to consider is whether the new nozzle is heating up properly.

If not, it can cause the prints to come out wrong or have poor quality.

This can be caused by various factors, such as a lousy thermistor or wiring issue.

Be sure to check all connections before starting a print job. 

Frequently Asked Questions

Below are some frequently asked questions about changing nozzles on 3D printers: 

How often should you clean the 3D printer nozzle?

It’s generally recommended that you clean your printer’s nozzle every 10 – 20 hours of printing time, depending on usage conditions.

More frequent cleaning may be necessary if you notice build-up around the tip of the nozzle.

Typically, the answer to this question depends on many factors, including the type of filament you are using and the quality of your prints.

In general, it’s recommended that you clean your 3D printer nozzle every time you change your filament.

This will help to prevent any build-up of material in the nozzle, which can cause problems with printing.

What are some ways of cleaning your 3D printer nozzle?

There are several ways to clean your 3D printer nozzle, including manual cleaning with a wire brush or ultrasonic cleaning.

The method you choose will depend on your personal preferences and the severity of the build-up.

What nozzles do 3D printer users use the most?

When it comes to choosing a nozzle for your 3D printer, there is no definitive answer.

Different users have different preferences, and the best nozzle for you will depend on your specific needs.

Some common types of nozzles used in 3D printing include brass, hardened steel, and ceramic.

Ultimately, it is up to you to experiment with different materials and find the best one.

What size should I choose for my printer’s nozzle?

The size of your printer’s nozzle depends on several factors, including the type and size of objects you want to print, as well as your desired level of detail and precision.

Smaller nozzles produce finer details but require slower printing speeds.

In comparison, larger nozzles allow for faster printing, but may sacrifice some level of detail. 

7. Conclusion

I hope this article has helped you through the process of changing the nozzle on your Ender 3 (Pro/V2).

I hope I have clarified the confusion about when and how to change a 3D printer nozzle.

Remember, regularly replacing your nozzle is essential to maintaining your 3D printer and keeping it printing at its best!

Also remember to keep the essential considerations in mind before upgrading.

If you encounter any issues after changing your nozzle, check the frequently asked questions section for troubleshooting tips.

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Affiliate Disclosure:

All our reviews are based on our personal experience and deep research. We are supported by our partners, and we might earn commission from qualified purchases through affiliate links with no additional costs for the buyer. Read more.

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