NYLON 3D PRINT - WHAT DO YOU NEED TO KNOW ABOUT?

NYLON 3D PRINT - WHAT DO YOU NEED TO KNOW ABOUT?

Published May 7th, 2022 10:26

Whether you're new to 3D printing or have been doing it professionally for a while, you've probably come across PLA or ABS materials. These materials are capable of producing stunning prints while being simple to use. But don’t forget Nylon 3D print filament - the material is as powerful as those two. If you're seeking material with a lot of flexibility, strength, and durability, you should give Nylon filaments a chance. To acquaint with 3D printing filament Nylon, let’s start with some information we’ve gathered below!

1. What is 3D printing Nylon filament?

Nylon needs to be considered one of the most common materials for professional users when it comes to 3D printing materials. This is due in great part to its widespread use outside of 3D printing. Because of its unique qualities, nylon has a wide range of uses, and the advantages of 3D printing allow components to be manufactured quickly and cheaply on the go.

Despite being a little difficult to 3D print, the material's qualities make the effort worthwhile. Nylon is a popular material for industrial 3D printing because it is robust, resilient, and resistant to abrasion. It can give good flexibility while remaining robust if printed thin enough. And because of its low coefficient of friction, nylon is ideal for constructing functioning moving components. As a result, nylon is frequently used to create functional prototypes, living hinges, gears, and other end-use components.

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Two more features of nylon are necessary to fully comprehend the nylon 3D print. It's hygroscopic, which means it loves to absorb moisture, and it has a high melting point. This second quality might be beneficial, but it also has drawbacks. While a printed part's surface allows the paint to attach properly, it also collects moisture from the air, which might compromise the part's function.

3D printing Nylon filaments normally demand extruder temperatures near 250C degrees, however, because of their chemical makeup, certain brands allow printing at temperatures as low as 220 oC. Because many printers don't come with a hot-end that can safely exceed 250 degrees Celsius, these lower-temperature variants can be beneficial and could save you money on a hot-end upgrade. FDM, Selective Laser Sintering (SLS), and MultiJet Fusion (MJF) are 3 different techniques that may be used to 3D print nylon. 

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2. Advantages of Nylon 3D printing filament?

Tough and long-lasting

In 3D printing filament comparison, Nylon has high mechanical strength and is less likely to distort. It does not easily snap or break. It also has a high level of impact resistance. Nylon filaments used in 3D printing produce strong, shock-resistant objects. Nylon provides pieces that are thicker and have a greater density infill. These filaments, on the other hand, become flexible while printing thinner pieces. They have high tensile strength as well. 3D printing Nylon filaments are far more robust than other materials due to their flexible nature. As a result, these filaments are extraordinarily strong and difficult to break. Furthermore, they have a low friction coefficient and require little or no lubrication. Nylon also has a higher chemical resistance, which means it may be used in a wider range of industrial applications.

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Enhanced Results

Nylon filament materials provide higher-quality prints. The prints are incredibly smooth and of great quality, thanks to the outstanding layer adhesion feature. Furthermore, the self-sealing feature of Nylon improves the surface quality. Nylon is capable of producing even the most complex patterns. However, there are a few things to keep in mind, such as purchasing the filament from a reliable source and making sure it is dry and hasn't absorbed moisture.

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Simple to use

3D printing Nylon filament is easy to use. Furthermore, when compared to other 3D printing materials, the material's most adaptable properties set it apart. When printing with nylon filaments, no heated bed or cooling system is required. They are also regarded as the most affordable 3D filament kind. Because Nylon is sensitive to humidity, the filaments must be stored in sealed containers. Also, make sure they're completely dry before using them since moisture will ruin the prints. Nylon, on the other hand, does not require the usage of a heated bed during the printing process due to this property.

Nylon filament is becoming one of the most popular materials for 3D printing projects. It is robust and long-lasting, and it aids in the production of high-quality prints. Nylon's self-sealing characteristic improves the surface quality of the prints. Other advantages, such as those listed above, make it a solid choice for a variety of sectors.

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3. Disadvantages of Nylon 3D printing filament?

  • Nylon is a material that is sensitive to moisture and must be kept completely dry.

  • Before printing, the nylon filament must be dried in an oven.

  • The first layer of nylon filament has the potential to distort.

  • The majority of nylon filaments have a maximum shelf life of 12 months.

  • Nylon shrinks during the cooling process of printed pieces, resulting in a loss of accuracy.

4. What common problem will happen when working with 3D printing filament nylon?

3D printing Nylon filaments are hygroscopic

The high hygroscopicity of nylon makes it a big deal for 3D printing. Even short-term exposure to high humidity can result in "wet" filament, which can cause dimensional accuracy and component strength inconsistencies when printed. Because of this feature, it's vital to keep nylon fiber in a dry environment. Professional FDM 3D printers are covered, so moisture can be securely avoided, however, the material is exposed to air when printing for beginning users using DIY or less expensive desktop printers. As a result, it is susceptible to dampness. When the moisture absorbed by nylon flows through the heater, it heats up and generates bubbles, which then burst throughout the heating process. That bursting makes visible gaps appear in the 3D printed parts, resulting in poor output.

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Nylon may absorb up to 10% of their weight in moisture from the air in 24 hours if left laying around. However, storing the filaments in an airtight container with a desiccant can easily avoid this. However, if we forget to do so, there are solutions to repair your nylon 3D printer filament.

To fix this problem, you should dry your nylon 3D printer filament. Heat it for 6 to 8 hours at 160°F – 180°F. Even 4 hours in a heated bed at 40°C has been shown to be effective. After the filament has dried, store it in an airtight container.

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Warping is a problem with 3D printing filament Nylon

Because of the large temperature differential between the ambient environment and the extruded material during printing, Nylon 3D printer filaments, like ABS, are prone to warping.

Warping happens when the print cools unevenly and coils away from the build plate, distorting the printed item. This may be prevented by properly bonding the print bed and utilizing a heated bed to keep the print's bottom layer moderately heated so that it adheres to the bed throughout the print. While printing with nylon, the cooling fans can be turned off as an extra precaution.

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To fix it, you may want to use an enclosure when printing. Employ a heated cage or chamber to prevent your print from distorting. It maintains a constant temperature of 45 degrees Celsius around the component. Besides that, a heated bed can also assist, however it won't completely prevent warping if the setting is too drafty or chilly. For adherence, wipe a glue stick across the heated bed in a cross-hatch pattern. Make sure the bed temperature is as high as possible – even up to 120°C for warp-free printing. While printing, remember to switch off the layer cooling fans.

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5. Tips to make 3D Nylon print like a pro!

Before printing 3D printing Nylon Filament Must Be Dried

When you use wet Nylon 3D print, the water in the filament bursts, resulting in air bubbles that hinder proper layer adhesion, weakening the item and degrading the surface quality. There's no denying that dry filament is required for successful 3D printing with nylon and nylon-based materials. On the other hand, dry nylon prints are buttery smooth and have a glossy finish. After it has dried, either print it right away in a warm, draft-free environment or keep it in an airtight container with desiccant to use later.

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Nylon Has the Potential to Warp

In the 3D printing comparison between Nylon vs ABS, there is a common thing in both of them. It’s warping. For optimal results, avoid using layer cooling fans and staying in drafty or cool rooms. If you can't keep your printer out of drafty or cold environments, try making your own printer enclosure or purchasing one of the 3D printer enclosure kits.

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Garolite, Glass, and PVA Glue are all-important bed surface materials.

The bed surface you select to print nylon on, like any other type of filament, may make the difference between warping and effective 3D printing. The garolite sheets and glass plates may give the most constant successful outcomes when it comes to nylon. Both sides offer the bed stickiness required to bond prints to the build surface for a seamless 3D printing experience with the addition of a PVA glue stick.

Not Every HotEnd Is Created Equally

Most 3D printers come with PEEK and PTFE hot-ends as standard. Above 240°C, both PEEK and PTFE begin to degrade, burning and emitting toxic odors. You'll need a hot-end that can achieve temperatures of at least 250°C to properly print while using 3D printing Nylon filament.

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To make your own Nylon 3D print, the material may be purchased from either filament or 3D printer manufacturers. Each 3D printer filament has its own set of properties and recommendations, so does Nylon. If you want to make sure your print with Nylon filament success, just pay attention to every detail and follow the guideline closely.

Not only 3D printers, 3D printed filaments also need to be preserved to ensure the best print quality. So how to have a high-quality 3D printer filament storage?