UV Resin 3D Printer vs. Filament: which one is better

Written By PrintingPro

3D printing, also known as additive manufacturing, has revolutionized the way we create objects. Over the years, 3D printing technologies have evolved, presenting us with choices like UV resin 3D printers and filament-based ones. The importance of selecting the right printing material cannot be overstated, as it directly impacts the quality, durability, and purpose of the printed object. Whether you’re using UV resin or filament, understanding their differences is vital. In this guide, we’ll delve into “UV resin 3D printer vs. filament” to help you make an informed decision.

What is a UV Resin 3D Printer?

A UV resin 3D printer is a type of additive manufacturing machine that brings designs to life using a special liquid material known as photopolymer resin. But how does it work? At the heart of this technology are SLA (Stereolithography) and DLP (Digital Light Processing) methods. These processes involve directing UV (ultraviolet) light onto the resin, causing it to harden or ‘cure’. Imagine painting with light, and where the light touches, the liquid transforms into a solid!

This technology is particularly cherished for its ability to produce intricate details. From jewelry design to dental molds, UV resin printers are often the top choice due to their precision. For those keen on achieving a smooth finish without visible layer lines, these printers are a boon.

What is a Filament 3D Printer?

A filament 3D printer, commonly linked with FDM (Fused Deposition Modeling), uses thermoplastic materials to create objects layer by layer. Think of it as a precise, computer-controlled hot glue gun. This ‘gun’ or extruder, as it’s professionally termed, heats and melts the filament, pushing it out to form the design.

There are various types of filament materials to choose from, with PLA, ABS, and PETG being among the most popular. Each has its unique characteristics, making them suitable for different projects. For example, PLA is biodegradable and loved for its eco-friendliness, while ABS boasts strength and durability.

Filament printers are renowned for their versatility. They allow users to adjust settings like infill patterns and offer a broad palette of colors, making them a favorite among hobbyists and professionals alike. Whether you’re crafting toys, tools, or artistic sculptures, these printers offer flexibility without breaking the bank.

Key Differences between UV Resin and Filament Printers

When diving into the world of 3D printing, understanding the core contrasts between UV resin and filament printers is pivotal. Let’s break down these differences:

  1. Precision and Detail: UV resin printers take the trophy for precision. They use light to cure resin, allowing for incredibly detailed outputs. This makes them perfect for intricate designs like jewelry or miniatures. On the other hand, filament printers, while accurate, might not capture the finest of details due to the layer-by-layer extrusion process.
  2. Material Strength and Durability: Filament printers often produce sturdier objects, especially when using materials like ABS. UV resin prints, although they can be tough, might be more brittle depending on the resin type.
  3. Speed and Efficiency: Filament printers typically work faster for larger objects, but if you’re aiming for high detail, UV resin printers, despite being a tad slower, are worth the wait.
  4. Cost Implications: Filament 3D printing is generally more budget-friendly, both in terms of the printer and the material costs. UV resin printing can be pricier, but the trade-off is the superior finish and precision it offers.

In essence, your choice between UV resin 3d printer and filament boils down to your project’s requirements. Do you prioritize detail or durability? Speed or precision? And of course, how much are you willing to invest? Considering these aspects will guide your decision.

Read: Comparing the Strength of 3D Printing vs Injection Molding

Advantages of UV Resin 3D Printers

UV resin 3D printers, often associated with SLA and DLP technologies, come with a set of unique advantages that set them apart in the additive manufacturing world:

  1. Superior Surface Finish and Detail: One of the most celebrated traits of UV resin printers is their ability to produce objects with an incredibly smooth finish. Forget about visible layer lines; these printers create items that often require little to no post-processing. For professionals who deal with detailed models, like architects or jewelry designers, this level of precision is unmatched.
  2. Complex Geometries: With UV resin, gravity is less of a constraint. This means you can print overhangs, intricate lattices, and hollow structures without needing support materials. It opens up a world of design possibilities that might be challenging for filament-based printers.
  3. Material Choices: Beyond the standard clear resin, there’s a plethora of specialized resins available. Castable resin, for instance, is a favorite among jewelers, while flexible resin is great for crafting objects that can bend without breaking.

  UV Resin Printer disadvantages:

  1. Material Brittleness: Some UV resins, after curing, can be quite brittle. This means objects printed with them might break or chip more easily, especially when dropped or subjected to force.
  2. Post-Processing: Once an object is printed using a UV resin printer, it often requires post-curing under UV light to achieve its final properties. Additionally, cleaning up uncured resin and ensuring proper disposal can be a bit of a task.
  3. Ventilation Requirements: UV resins can give off fumes that are unpleasant and might be harmful in enclosed spaces. Adequate ventilation is essential, and using them in well-ventilated areas or under extractor fans is advised.

Advantages of Filament 3D Printers

UV Resin 3D Printer vs. Filament

Filament 3D printers, synonymous with FDM technology, have been the backbone of many 3D printing endeavors. Let’s explore the reasons behind their popularity:

  1. Variety of Materials: Filament printers offer a buffet of materials. From the eco-friendly PLA to the durable ABS and versatile PETG, there’s a filament type for almost every project. And that’s not all! There are also composite filaments infused with wood, metal, or even glow-in-the-dark elements.
  2. Cost-Effective: For those on a budget, filament printers are often the go-to. Not only are the machines generally more affordable, but the filament spools themselves are economical, making them a hit among hobbyists and startups.
  3. User-Friendly: Many filament printers are designed with beginners in mind. They’re easier to set up, modify, and customize. Plus, with a vast community of enthusiasts, finding troubleshooting tips or creative ideas is a breeze.
  4. Vibrant Colors and Flexibility: Fancy a multi-colored object? Filament printers allow for color changes, and some advanced models even support multi-color printing. Moreover, settings like infill patterns can be adjusted, giving users control over the print’s internal structure and strength.

Filament Printer Cons:

  1. Less Detail: While filament printers are incredibly versatile, they might not capture the finest details, especially in comparison to UV resin printers. Visible layer lines can sometimes be an aesthetic concern.
  2. Potential Warping: Materials like ABS can warp or deform if cooled too quickly. Ensuring a stable temperature, using a heated bed, or choosing warp-resistant materials can help mitigate this.

Read: Mastering 3D Printing First Layer Ripples


3D printing, with its myriad of possibilities, offers both UV resin and filament technologies, each shining in its unique way. While UV resin printers mesmerize with unparalleled detail and precision, filament printers bring versatility and affordability to the table. Understanding the strengths and potential pitfalls of each is essential. Whether you’re a hobbyist, a professional, or someone simply intrigued by the magic of 3D printing, your choice between UV resin and filament should align with your project’s demands and budget. Happy printing!

Photo of author
Written By PrintingPro

PrintingPro Konti is a seasoned wordsmith with a fervor for crafting enlightening and captivating content. With a wealth of experience in crafting blog posts and product guides within the printing industry, Konti has firmly positioned himself as the go-to authority for readers in search of valuable insights within this multifaceted and dynamically evolving sector. As a recognized expert in the printing domain, Konti possesses an exhaustive grasp of cutting-edge technologies, emerging trends, and industry best practices. He adeptly harnesses this knowledge to generate content that not only informs but also engrosses, ensuring that readers stay abreast of the latest developments in digital printing, offset printing, and 3D printing.