Laser Engraver Blogs

RAY5 Mini / Mini S: Why Your Engraving Looks Blurry (And How to Fix It)
RAY5 Mini / Mini S: Why Your Engraving Looks Blurry (And How to Fix It)

If your RAY5 Mini or Mini S laser engraver is producing unclear or blurry results, the issue is usually related to focus, settings, or material compatibility. Follow the steps below to troubleshoot and improve your engraving quality.

1. Check the Laser Focus

Incorrect focus is the most common cause of poor engraving.

  • Use the focus block that comes with your machine
  • Adjust the laser head until the correct focal distance is achieved
  • Make sure the laser spot is as small and sharp as possible

A properly focused laser ensures clean lines and better detail.

2. Verify S-Value Settings in LightBurn

In LightBurn:

  • Go to Edit → Device Settings
  • Check that S-Value Max = 1000

If this value is incorrect, your laser power output may not match your settings, resulting in weak or inconsistent engraving.

3. Check Your Engraving Parameters

Incorrect parameters can significantly affect engraving quality.

Pay special attention to:

  • Speed (and its unit: mm/min vs mm/s)
  • Power percentage
  • Number of passes

Refer to the official parameter table for your material when possible.

In LaserGRBL:

  • Set S-MAX = 10 × laser power percentage
  • Example: 100% power → S-MAX should be 1000

4. Enable Constant Power Mode

Make sure your laser is running in constant power mode (usually M3 mode):

  • This ensures consistent energy output during engraving
  • Prevents uneven or faded results

5. Inspect and Clean the Lens (Window Mirror)

A dirty lens can reduce laser strength and clarity.

  • Check the laser head window (lens) for dust or residue
  • If dirty, gently clean it using lens cleaning paper, or A lint-free cloth with a small amount of alcohol

⚠️ Avoid applying pressure to prevent damaging the coating.

Final Tips for Better Engraving Results

  • Always test settings on scrap material first
  • Use high-contrast materials for clearer results
  • Keep your machine clean and well-maintained
By Laser Engraver Blogs | April 24, 2026
UV Printer vs Sublimation Printer:  Technology Comparison & Business Decision Guide
UV Printer vs Sublimation Printer: Technology Comparison & Business Decision Guide

The personalized product market is growing rapidly, and digital printing technologies are making it easier than ever for creators, small businesses, and home studios to produce customized products. If you're planning to start a custom printing business or upgrade your equipment, two technologies dominate the market: UV printing and sublimation printing.

Let’s quickly compare the differences between UV printing and sublimation printing. UV printing is more versatile, capable of printing directly on materials like acrylic, wood, metal, glass, leather, and plastic, making it ideal for custom products and small-batch businesses.

UV-printed San Francisco themed 3D fridge magnets

Sublimation printing works best for polyester fabrics and coated items, making it popular in apparel, sportswear, and photo gifts.

Sublimation printed t-shirts with modern patterns

If you want to create a wide range of personalized products, a desktop UV printer is usually the more flexible investment.

This guide will provide a detailed comparison of these two technologies across four key aspects. By the end, you'll understand which printing technology is best for your business model.

  •  Printing technology
  •  Material compatibility
  •  Cost structure
  •  Business applications

1.  Printing Technology Comparison

● UV Printing: Instant UV Ink Curing

UV printing (Ultraviolet printing) uses UV-curable inks that harden instantly when exposed to ultraviolet light. During the printing process, the printhead sprays UV ink onto the surface, and UV lamps immediately cure the ink, allowing it to solidify into a durable layer within seconds. This instant curing process offers several advantages, including high production efficiency with no drying time required, sharp image quality as the ink stays exactly where it is printed, and textured printing effects that create a premium tactile feel with slightly raised surfaces. Because the ink sits on top of the material, UV printers can print on a wide range of rigid and irregular surfaces such as acrylic, glass, metal, plastic, wood, leather, and phone cases, making UV printing an ideal solution for custom merchandise and personalized product businesses.

The Longer ePrinter features a self-cleaning function

● Sublimation Printing: Dye Infusion Through Heat

Sublimation printing works through a completely different physical process.

Instead of curing on the surface, sublimation inks turn into gas under heat and pressure. In a typical workflow, the design is first printed onto transfer paper, then placed onto the material, after which a heat press at 180–200°C turns the ink into gas that penetrates the material and bonds with it permanently. Once cooled, the dye becomes part of the material itself. This process results in several key characteristics, including a soft touch with no raised ink layer, photographic image quality, and excellent durability since the prints will not crack or peel. However, sublimation only works on polyester fabrics or polymer-coated materials.

2. Material Compatibility

Material compatibility is often the most important factor when choosing a printing technology. One of the biggest advantages of UV printers is their wide material compatibility. Because UV ink cures with light instead of being absorbed, it can print on 300+ materials. This makes UV printing an extremely flexible solution for creators producing custom acrylic signs, phone cases, promotional gifts, or home décor.

In addition, UV printing supports advanced techniques like UV DTF printing, rotary printing for cylindrical objects, and 3D textured printing using white ink layering. For example, a desktop UV printer like the Longer ePrint can easily print on acrylic panels, wood crafts, metal plates, leather accessories, and plastic products. This versatility is one of the key reasons why many makers and Etsy sellers prefer UV printers.

Sublimation printing is best suited for polyester materials and has a much narrower range of compatible substrates. It works primarily on polyester fabrics, ideally with a polyester content above 85 percent, as well as polymer-coated products and specially prepared sublimation blanks. Common sublimation products include sports jerseys, polyester T-shirts, mouse pads, photo mugs, metal photo panels, and coated phone cases. However, materials such as cotton, untreated glass, raw metal, and natural wood cannot be sublimated directly. While coating sprays are available to make some of these materials compatible, they add extra cost and increase production complexity.

3. Cost Structure Comparison

When evaluating a printing technology for business, it is important to consider equipment investment, consumables, and maintenance costs.

● Equipment Cost

Sublimation printing setup has a relatively low entry cost, typically requiring a sublimation printer, a heat press, sublimation ink, and transfer paper, allowing you to get started with just a few hundred dollars.

UV printer setup requires a higher initial investment, with entry-level desktop UV printers typically costing several thousand dollars depending on features and build quality. However, compact machines like the Longer ePrint Desktop UV Printer are designed to lower the barrier for small businesses and creators. These printers usually feature a compact desktop design, high-precision printing, UV instant curing, support for multiple materials, and are well suited for custom product businesses.

Longer eprint

● Maintenance Costs

UV Printers require regular maintenance, including printhead cleaning, UV lamp inspection, and ink system maintenance. Annual maintenance costs may range from $1,000 to $5,000 for larger machines, while desktop models typically cost significantly less. Sublimation printing require simpler maintenance, mainly including printer cleaning, heat press maintenance, and inventory management.

4. Business Applications

● Profitable Applications for UV Printing

UV printing is ideal for small-batch, high-margin custom products, with popular markets including custom phone accessories such as personalized phone cases and tablet covers that can achieve 300–500% profit margins, acrylic signs and business branding for offices, retail stores, and corporate environments, personalized gifts such as photo plaques, engraved acrylic panels, and custom awards, home decor products including printed wood panels, decorative glass, and wall art, and promotional products like corporate gifts, metal cards, acrylic trophies, and branded merchandise. It is also widely used for cylindrical products through rotary attachments, including tumblers, bottles, and cosmetic containers, as well as 3D textured printing, where layered white ink creates embossed effects for premium product finishes. The global UV printing market is projected to exceed $4.9 billion by 2031, driven by strong demand from the customization industry.

● Where Sublimation Printing Excels

Sublimation remains dominant in industries such as sports apparel, where it is widely used for polyester jerseys and team uniforms, soft textile products such as pillows, banners, and flags, photo gift products that require high-quality photographic printing on items like mugs, puzzles, and mouse pads, and mass textile production, including roll-to-roll sublimation printing for large-scale fabric manufacturing.

5. How to Choose the Right Printing Technology

Choose UV printing if you want to:

  •  Print on acrylic, wood, glass, or metal
  •  Sell custom products and personalized merchandise
  •  Produce small batches with high profit margins
  •  Offer premium textured printing

Choose sublimation printing if you want to:

  •  Focus on polyester apparel
  •  Produce soft textile products
  •  Run large batch production

For many creators and small businesses today, a desktop UV printer provides the most flexibility and product diversity. Machines like the Longer ePrint Desktop UV Printer allow makers to start producing professional-quality customized products without investing in large industrial equipment.

Longer eprinter printed works

6.  Conclusion

Both UV printing and sublimation printing are powerful technologies, but they serve different markets. Sublimation printing excels in polyester fabrics and textile production, while UV printing offers unmatched flexibility across rigid and diverse materials.

For entrepreneurs, creators, and small businesses aiming to expand their product range, a desktop UV printer provides a far more versatile and scalable solution. With the ability to print on materials such as acrylic, wood, metal, leather, and plastic, UV printing unlocks countless opportunities for customized, high-margin products.

This is where Longer ePrint Dual-Head UV Printer stands out. Designed to combine professional-grade performance with a compact footprint, it enables users to produce high-quality prints with greater efficiency thanks to its dual-head system. Whether you're launching a custom product business or scaling up production, it offers the flexibility and reliability needed to turn ideas into profitable products.

If you're looking to move beyond the limitations of sublimation and tap into a broader, more profitable market, investing in a solution like the Longer ePrint can be a smart next step.

 

By Laser Engraver Blogs | April 20, 2026
Why UV Ink Doesn’t Evaporate?
Why UV Ink Doesn’t Evaporate?

UV printing has rapidly become one of the most versatile technologies in modern digital manufacturing. Today, a UV printer can print directly on materials such as glass, metal, wood, plastic, acrylic, leather, and ceramics while producing vibrant, durable images.

One question that frequently comes up among new users is: Why doesn’t UV ink evaporate like traditional ink?

In conventional printing methods such as inkjet or solvent printing, ink dries through evaporation. However, UV printing works in a completely different way. Instead of drying, UV ink undergoes a chemical reaction called photopolymerization, which instantly transforms liquid ink into a solid polymer.

In many ways, the process behind UV printing is closer to 3D printing technology than traditional 2D printing. This article explores the science behind UV printing, including:

  • How does UV ink cure?
  • Why does UV printing enable 3D textures?
  • How does ink bond to materials?
  • The engineering behind UV LED curing systems
  • Why does thermal management matter for print consistency?

1. UV Ink Does Not Dry, It Polymerizes

Traditional inks rely on evaporation to become dry. After evaporation, pigments remain on the surface of the material.

For example:

  • Water-based ink dries when water evaporates
  • Solvent ink dries when organic solvents evaporate

UV ink works differently. UV inks contain a key chemical component known as a photoinitiator. When exposed to ultraviolet light—typically in the 365 nm, 385 nm, or 395 nm wavelength range—the photoinitiator absorbs the light energy and produces free radicals.

These radicals trigger a rapid photopolymerization reaction, which causes liquid monomers and oligomers to chemically link together and form a solid polymer structure.

The transformation occurs extremely quickly, often within 0.1–1 second.

Because of this process, no solvent evaporation occurs, the ink does not spread, and images remain extremely sharp. As a result, printed products produced by a UV printer are already fully cured when they exit the machine.

2. Why Can UV Printing Produce 3D Textures?

One of the most unique capabilities of UV printing is its ability to create raised textures and embossed effects.

This is possible because UV ink cures instantly rather than soaking into materials; in traditional printing, ink tends to spread slightly, layers remain thin, and textures are difficult to build, whereas in UV printing the ink is cured immediately after deposition, allowing the printer to repeatedly deposit ink and cure it with UV light layer by layer, gradually building height on the surface, which in turn enables embossed graphics, tactile textures, Braille printing, and decorative relief effects.

From a technical perspective, this layered deposition method resembles additive manufacturing, which is why some engineers describe UV printing as a hybrid between 2D printing and surface-level 3D printing.

3. How Does UV Ink Bond to Different Materials?

Another major advantage of UV printing technology is its ability to print on a wide range of substrates; while traditional inks typically require absorbent materials such as paper, fabric, or coated surfaces, UV ink behaves differently because it does not soak into the material but instead cures into a polymer film on the surface, which adheres to the substrate through mechanical bonding, surface energy interaction, and, in some cases, chemical adhesion, allowing UV printers to work on many non-porous materials, including glass, aluminum, stainless steel, acrylic, ceramics, and plastics, and, in certain situations, a primer coating may be used to further improve adhesion, especially on low-surface-energy plastics. 

4.  The Engineering Behind UV LED Curing Systems

The UV curing module is one of the most critical components in any UV printer, as UV LED lamps provide the ultraviolet energy required to initiate photopolymerization, and the intensity, wavelength, and uniformity of this light directly affect curing speed, ink hardness, color consistency, and adhesion strength; however, one engineering challenge that many users overlook is thermal management, since UV LEDs generate significant heat during operation, and if the temperature rises too high, it can lead to wavelength drift, reduced light intensity, incomplete curing, sticky surfaces, and inconsistent print quality, which is why UV printers must integrate effective cooling systems to maintain stable performance.

5.  Cooling Systems: Air Cooling vs Water Cooling

Modern UV printers typically use one of two cooling approaches: air cooling and water cooling.

Air cooling uses heatsinks and fans to dissipate heat from the LED module. Its main advantages are a simple structure, lower cost, and easy maintenance, which makes it commonly used in entry-level UV printers, hobby machines, and small workshops.

Water cooling systems, on the other hand, use liquid circulation to remove heat from the LED array. Since water has a thermal capacity roughly four times greater than air, it enables much more efficient heat transfer, resulting in stable LED temperatures, more consistent curing performance, lower operating noise, and improved reliability during long production runs.

As a result, water-cooled UV curing systems are often used in industrial UV printing equipment designed for continuous operation.

6. Why Does Curing Stability Matter in Production?

In real production environments, a UV printer may run continuously for several hours. If curing performance becomes unstable, operators may encounter issues such as partially cured ink, sticky prints, reduced durability, and color inconsistency. These problems typically appear during long production runs, when thermal buildup begins to affect LED performance.

For this reason, professional UV printers must balance multiple engineering factors, including precision printhead control, stable UV LED curing output, efficient thermal management, and consistent ink chemistry. When all of these systems work together, UV printing can achieve exceptionally stable and repeatable results.

7.  Conclusion

UV printing technology is far more than a simple ink-spraying process. It combines advanced chemistry, optical engineering, and precision mechanical systems. Through photopolymerization, instant UV curing, and layered ink deposition, a UV printer can produce:

  • High-resolution graphics
  • Durable surface coatings
  • Textured and embossed effects
  • Multi-material printing applications

As UV LED technology, printhead design, and ink chemistry continue to evolve, UV printing is becoming an essential tool for personalized manufacturing, industrial labeling, decorative printing, and creative production. Understanding the science behind UV ink curing helps users make better decisions when selecting equipment, optimizing workflows, and maintaining consistent print quality.

By Laser Engraver Blogs | April 16, 2026
LaserBurn Engraving Scan Path Explained : How to Set Scan Order
LaserBurn Engraving Scan Path Explained : How to Set Scan Order

What Is an Engraving Scan Path?

The engraving scan path refers to the path settings that determine the order and method in which the laser module scans and engraves objects during processing.

Different scan path options will affect:

  • Processing time
  • Operation sequence

How Does It Work?

1. Whole Engraving (Single Layer Engraving)

All objects on the canvas are engraved at once without distinguishing priority or sequence.

For filled engraving objects with the same parameters:

  • The laser scans from bottom to top and left to right
  • The laser processes these areas sequentially within a single scan

As a result, the overall processing time is usually longer.

2. Object-by-Object Engraving (Multi-Layer Engraving)

Objects are engraved one by one according to the defined order and direction.

  • The laser completes one object before moving to the next
  • The movement distance between objects is shorter

As a result, the processing time is usually shorter.

3. How to Use It?

The scan path for objects with different parameters will be displayed accordingly.

Example:

(1) When engraving three filled objects on the current canvas:

  • Objects with the same parameters will be grouped together
  • A total of three groups will be generated (Group 1, Group 2, Group 3)
  • Each group contains one object

By Laser Engraver Blogs | April 15, 2026
How to Set Processing Order by Layer in LaserBurn
How to Set Processing Order by Layer in LaserBurn

What is “by layer"?

For complex vector graphics, using layers helps manage objects more efficiently. Vector line colors are used to define layers, and objects within the same layer share the same processing parameters.

You can easily select and move objects across layers, simplifying your design workflow.

After enabling “By Layer” in the processing settings, you only need to adjust the layer order to define the processing sequence of your design.

How Does It Work?

The processing order follows the vertical layer order, from top to bottom.

The order is not affected by layer numbering. To change the order, simply left-click and hold the layer you want to move, then drag it to your desired position.

How to Use It?

(1) Create Objects

Use the tools in the left toolbar to create objects. You can import images, insert shapes, input text, or draw vector graphics as needed.

(2) Assign Layers

Right-click the object you want to adjust, then select a layer.

(3) Arrange Layer Order

Click the layer icon at the bottom and arrange the layers as needed.
In this example, the circle is placed last, while the triangle and polygon are placed first.

(4) Preview

After completing all preprocessing steps, click the “Preview” button to enter the preview page.

On the preview page:

  • Black lines represent the processing path
  • The “+” icon represents the processing starting point

The machine will cut the circle first, then engrave the triangle and polygon vectors.

Tips for Better Results

  • Always check the preview before processing
  • Adjust layer order carefully to match your design needs
  • Use consistent colors to manage layers more clearly
By Laser Engraver Blogs | April 13, 2026
Why UV Printers Are Ideal for Small Businesses Starting a Custom Product Business
Why UV Printers Are Ideal for Small Businesses Starting a Custom Product Business

Over the past decade, the personalized consumer market has been growing rapidly. From customized gifts to branded merchandise, from e-commerce products to small-batch manufacturing, more small businesses are searching for production solutions that can maintain product quality while offering high flexibility.

Traditional printing processes often struggle to meet the needs of small businesses. For example, screen printing is efficient for mass production but involves high plate-making costs. Dye-sublimation printing requires specially coated materials, while heat transfer processes involve multiple production steps and additional equipment.

In comparison, UV digital printing technology has become an important solution for small-scale manufacturing and product customization. As the technology has matured, Desktop UV Printers have entered the consumer-level price range, enabling small businesses to establish their own customize production capabilities at a relatively low cost.

This article will analyze from the technical features, application range, and commercial value of UV printing to explain why UV printers are becoming an essential production tool for small businesses.

1. Instant UV Curing Technology Greatly Improves Production Efficiency

One of the important technological advantages of UV printing is UV curing. UV inks contain photoinitiators that react when exposed to ultraviolet light. During the printing process, UV LED lamps cure the ink instantly as it is deposited onto the substrate surface. This triggers rapid polymerization, transforming the liquid ink into a solid layer almost immediately.

In traditional printing processes, inks typically require natural drying or heat treatment to cure. This not only takes time but also slows down the overall production process. UV printing uses ultraviolet light to trigger a polymerization reaction the moment the ink is deposited onto the material surface, enabling instant curing.

This technology offers several key advantages:

● No drying time: prints are ready immediately after printing

● Simplified workflow: no additional drying racks or heat-curing equipment

● Faster production cycles: ideal for rapid order fulfillment

For small studios operating a desktop UV printer, this efficiency allows the entire workflow to take place within a compact workspace. In e-commerce environments where order turnaround speed is crucial, this capability can significantly improve productivity and customer satisfaction.

2. Broad Material Compatibility Expands Product Possibilities

Another major advantage of UV printing technology is its excellent substrate compatibility. Traditional printing processes often depend on specific materials or surface treatments. For example:

● Dye sublimation requires polyester-coated materials

● Screen printing requires different ink systems for different substrates

● Heat transfer printing relies on transfer films and heat presses

UV printing, however, can print directly onto a wide range of materials without requiring special coatings, including:

More importantly, UV printing can achieve high-quality results even on dark or transparent materials, thanks to the use of white ink as a base layer. This allows a single Desktop UV Printer to support multiple product categories. For small businesses, this means one machine can support multiple product lines, greatly expanding business possibilities.

3. White Ink and Varnish Technology Create High-Value Products

Modern UV printers typically support multi-channel ink systems, commonly including CMYK + White Ink + Clear Varnish.

● White Ink

Used as a base layer when printing on transparent or dark materials, allowing colored graphics to appear vivid and accurate.

● Clear Varnish

Can be printed in multiple layers to create raised textures on the printed surface. This technique produces a 3D embossed effect that adds both visual depth and tactile feedback.

This tactile effect not only enhances visual depth but also significantly improves the perceived quality of products. Examples include:

● Textured phone cases

● Embossed acrylic signage

● Decorative plaques

● Artistic display panels

In the customization market, products with tactile, raised printing often command higher price premiums.

4. Perfect for Small-Batch and Personalized Production

Unlike traditional printing technologies, UV printing is a fully digital manufacturing process. This means:

● No plate-making required

● No complex setup process

● Each design can be printed individually

As a result, UV printing is particularly well-suited for modern business models such as:

● Personalized customization

Products such as name gifts, personalized phone cases, and commemorative souvenirs.

● Small-batch production

Limited edition products, designer collections, or trial market launches.

● On-demand manufacturing

Products are produced only when orders are received, reducing inventory pressure and financial risk.

This production model aligns perfectly with modern e-commerce platforms such as Etsy stores and Shopify-based businesses.

5. Integration with the 3D Printing Ecosystem

With the rise of the maker culture, 3D printing has become a popular manufacturing tool among creators and small businesses. However, decorating the surface of 3D printed objects can still be challenging.

Many makers still rely on:

● Hand painting

● Manual logo application

● Adhesive labels or stickers

These methods are often time-consuming and inconsistent. UV printing offers a more efficient solution by allowing high-resolution graphics to be printed directly onto finished 3D printed parts. This enables creators to:

● Fast branding and logo application

● Apply detailed graphic designs

● Produce professional product prototypes

For 3D printing entrepreneurs, UV printing serves as an efficient post-processing solution that improves both production speed and product quality.

6. Continuous Technological Development Expands UV Printing Capabilities

UV printing technology continues to evolve, bringing significant improvements in both printing performance and system functionality.

Earlier desktop machines were typically built with single printhead configurations. Today, more advanced machines have adopted Dual-head UV Printer architectures, which significantly increase printing speed and improve efficiency when printing multiple ink layers. This development is particularly important for applications involving white ink and varnish, where multiple passes are required to build up thickness. Dual-head configurations make it easier to produce more realistic 3D embossed textures. For example, Longer recently introduced the world’s first dual-head desktop UV printer, the ePrint.

At the same time, the ecosystem of UV printing accessories has expanded, allowing a single machine to support a wider range of applications:

● Roll-to-roll modules: for flexible materials like labels and decorative films

● Rotary attachments: for batch printing on cylindrical objects such as cups and tumblers

● Lamination equipment: used with UV DTF processes to create transfer products like crystal stickers

● Conveyor belt systems: enabling continuous feeding for automated batch production

One important innovation is the development of UV DTF Printer technology. This process prints graphics onto a transfer film, which is then laminated to create durable decorative transfers often referred to as crystal stickers. These transfers can be applied to irregular surfaces where direct printing may be difficult.

These technological improvements are transforming UV printers from simple flatbed printing machines into versatile digital manufacturing tools. For small businesses, this not only improves productivity but also greatly expands product possibilities.

7. Lower Equipment Costs Reduce the Barrier to Entry

In the past, UV printing equipment was primarily designed for industrial manufacturing environments, with many machines costing over $15,000. In recent years, however, advancements in printhead technology, motion control systems, and UV LED curing systems have made compact UV printers more affordable. Today, many entry-level machines fall within the price range of: $1,000 – $3,000. Compared with traditional industrial printing equipment, these systems offer several advantages:

● Lower initial investment

● Faster return on investment

● Compact size suitable for small studios

For entrepreneurs entering the custom product market, a Desktop UV Printer provides an accessible way to establish in-house production capabilities without large capital investment.

8.  Conclusion

As demand for personalized products continues to grow, businesses increasingly require manufacturing technologies that combine flexibility, efficiency, and product quality.

UV printing technology meets these requirements through:

● Instant UV curing that accelerates production workflows

● Broad compatibility with many materials

● Premium decorative effects enabled by white ink and varnish

● Digital production processes ideal for small-batch manufacturing

With compact systems such as the Desktop UV Printer now available at consumer-level prices, UV printing is no longer limited to large industrial manufacturers. Instead, it has become an accessible production technology for creators, small studios, and entrepreneurial teams seeking to enter the custom product market.

For small businesses looking to transform creative ideas into sellable products, UV printing is more than just a printing method—it is a flexible digital manufacturing solution that enables innovation, customization, and scalable production. For those looking to combine creativity with commerce, it is becoming an efficient and practical pathway to launching a custom product business.

Longer ePrint UV Printer
By Laser Engraver Blogs | April 3, 2026
High-Drop UV Printing Technology Revealed: How Longer ePrint Achieves Desktop-Level High-Drop Precision
High-Drop UV Printing Technology Revealed: How Longer ePrint Achieves Desktop-Level High-Drop Precision

With continuous development in inkjet printing technology, printing applications are no longer limited to flat surfaces, creating new development opportunities across numerous industries. High-drop UV printing technology is increasingly creating significant market value in areas such as toys, gifts, small ornaments, cylindrical or spherical objects, and electronic decorative components. Combined with the latest vision positioning technologies, more and more manufacturers are realizing the efficiency and innovation benefits of high-drop printing.

This article is aimed at manufacturers, engineers, and users who are already entered or are planning to enter the field of high-drop UV printing field, providing a comprehensive technical guide on factors affecting high-drop print quality. The contents cover multiple aspects, including waveform control, ink compatibility, and UV lamp optimization.

1.  What Is High-Drop UV Printing?

Simply put, high-drop UV printing means "even with a larger distance between the printhead and the surface, the printing result remains clear."

More specifically, when the distance between the printhead and the substrate reaches 5mm to 15mm or even higher, the ink can still land precisely and cure stably, producing high-quality image output.

Common applications include:

  • Printing on uneven materials such as corrugated boards, stone, and leather
  •  Multi-layer textured effects, including tactile 3D patterns
  •  Fine printing on cylindrical, spherical, or curved objects

The most important value of high-drop printing is that desktop UV printers can now achieve industrial-level multi-layer and complex shape printing, greatly expanding creative possibilities.

2.  High-Drop Printing Is More Than Just the Printhead

Many people assume that high-drop printing is solely determined by the capability of the printhead, but it is actually a system-level engineering challenge involving multiple components working together:

  • Printhead: Determines the basic printing capability
  • Waveform control: Manages the trajectory of ink droplets for precise placement
  • Ink compatibility: Impacts print quality and curing efficiency
  • UV lamp: Ensures instant curing of the ink and maintain layer stability
  • Control system: Maintains overall printing stability

Longer ePrint optimizes and coordinates all these elements to achieve industrial-level high-drop printing performance on a compact desktop machine.

3.  History and Breakthroughs in Desktop High-Drop Printing

In the past, 10 mm high-drop printing was almost exclusively possible on industrial printers, requiring expensive printheads such as:

  • Ricoh G6/G5i
  • Toshiba CF3
  • Seiko 1536

These industrial printheads were the backbone of high-drop printing, but they were costly and bulky, making them inaccessible for small studios or personal users.

Today, Longer ePrint desktop UV printer achieves a high-drop printing of up to 13 mm, making it the first and only desktop personal UV printer capable of ≥10 mm high-drop printing. This means:

  • Desktop UV printers are no longer limited to flat graphics
  • High-drop printing is now accessible across a wide range of budgets, from industrial systems costing tens of thousands to personal devices around $2,000. Small studios and
  • Individual creators can directly experience professional-grade printing

4. The Future Significance of High-Drop Printing

The breakthrough in high-drop UV printing goes beyond increased print height. It also enables:

  • More materials and shapes can be printed: including wood, metal, glass, leather, and stone
  • Multi-layer textures and 3D effects: upgrading from flat images to tactile designs
  • Higher efficiency: desktop devices can now achieve industrial-level speeds
  • Cost-effective innovation: small studios and SMEs can expand product lines without expensive industrial equipment

5. Conclusion

Longer ePrint high-drop UV printing technology has opened a new era for desktop UV printers. By coordinating printhead, waveform, ink, UV lamp, and control system, it not only solves high-drop printing challenges but also delivers industrial-grade capabilities for creators, personal studios, and custom product manufacturers.

With the growing adoption of desktop UV printers, more creative products, multi-layer textures, 3D effects, and personalized customizations will no longer be limited by equipment cost or process constraints. Longer ePrint is leading the new era of desktop UV printing.

By Laser Engraver Blogs | April 1, 2026
Guide to Stone Engraving Using Longer Laser Engravers
Guide to Stone Engraving Using Longer Laser Engravers

Longer laser engravers, such as the Longer Ray5 10W/20W Laser Engraver (the best laser engraver for beginners), the Longer Ray5 40W Laser, the Engraver Longer B1 30W/40W Laser Engraving Machine (the best laser engraver for small business), Longer Nano Pro Portable Laser Engraver ( The best laser engraver for craft fairs), allow you to create intricate works of art on a vast variety of materials. While wood is a common starting point, the versatility of these laser cutter and engraver machines extends dramatically to harder, more durable surfaces, like stone, offering a completely different aesthetic and final product.

Why Choose Stone for Laser Engraving

The material preferred by users for its natural elegance and striking contrast is usually dark slate, which can be engraved with high precision and is highly durable. Engraved slate is perfect for creating a sophisticated, timeless look, much more durable than most organic materials, particularly for items like coasters, plaques, and decorative tiles.

Cardboard can also be processed with a laser; however, great care must be taken, as it is easily flammable. In order to avoid this, it is essential to carefully set the power and speed parameters. Stone, on the other hand, presents no fire risk but requires precise parameter settings to achieve clear, sharp contrasts. The material’s density dictates a completely different approach compared to engraving wood or cardboard, focusing on achieving a bright, precise mark without fracturing the surface. The use of air assist is still highly recommended to remove fine stone dust and keep the workspace clean, allowing for faster and more accurate processing.

Getting Started: Basic Parameters for Slate

In initial tests on slate, it is good practice to start applying settings that allow for a clean, single-pass marking. This allows the laser to ablate a fine surface layer to expose a lighter shade, creating the detailed image. Supposing you want to engrave slate, the following can be considered as basic parameters, tested on a 12W Longer Nano Pro:

Speed: 6000 mm/min
Power: 50%
Steps: 1 pass

These parameters provide a fast yet efficient starting point for clear engravings. Note that different laser powers will require adjustments (e.g., using a 20W or 30W module, you may be able to significantly increase the speed or decrease the power and possibly proceed with the necessary adjustments, doing tests).

Achieving Striking Contrast and Longevity

In this way, the engravings will be carried out with striking contrast, where the dark slate reveals a light, detailed pattern. However, since the engraving is a physical removal of a surface layer, it is necessary to avoid touching the engraved areas with abrasive materials; otherwise, they will be removed and compromised. A practical solution is to apply a light, food-safe mineral oil or a clear matte coat so as to protect the result, deepen the black areas, and make the engraving more durable and permanent.

Creative Possibilities with Stone

An interesting aspect of engraving on stone is the possibility of playing with subtle variations, creating deep engravings or light surface markings. This makes stone an ideal material for experimenting with complex graphics, illustrations, or even stylized photographs, where the high resolution of Longer Laser Engravers shines. In addition, thanks to its durability, stone creations can be made for both indoor and outdoor use.

Stone engravings are used in various practical areas:

  • Customization of kitchenware and personalized gifts
  • Creation of stencils, architectural accents, and artistic plaques
  • Commercial applications, such as high-quality branded items and detailed signs

Thanks to the precise power control, you can experiment freely until you get the desired result.

Maintenance Tips for Stone Engraving

After engraving, it is advisable to clean the countertop and laser module regularly, as stone tends to release fine, abrasive dust. A simple wipe with a damp microfiber cloth avoids accumulations that could compromise the precision of subsequent processing. The air assist filter should also be checked periodically to maintain constant airflow efficiency.

Why Stone is an Exceptional Laser Engraving Material

As far as we have seen, stone is not simply a hard material but an exceptional canvas with its own intrinsic strategic value. In fact, its convenience and easy availability (particularly slate), combined with the millimetric precision of Longer Laser Engravers, make it the ideal tool for efficiency and experimentation.

Ultimately, stone is a superb material to master using Longer Laser Engravers, since by mastering the parameters of speed and power, it is not only possible to obtain pieces with clean lines and high contrast, but it is also possible to have access to artistic creation that is sophisticated, permanent, and highly cost-effective.

By Laser Engraver Blogs | April 1, 2026
How to Use LaserBurn PC Software with Ray5 mini for Engraving
How to Use LaserBurn PC Software with Ray5 mini for Engraving

This guide explains how to use the LaserBurn PC software to perform engraving with the Ray5 mini. It covers software download, device connection, file import, parameter setup, and engraving steps.

Steps

1. Software Download

First, go to the Longer official website to download the LaserBurn PC software. Install it and then open the software.

2. Device Connection

After opening the software, click "Device" to connect the machine. In the pop-up window, select the Ray5 mini image and click "Confirm". Then choose the correct port and click "Connect". When "Ray5 mini" appears in the device window, the connection is successful.

Import File and Start Engraving

Click the icon in the upper left corner and select "Import" to load the image to be engraved into the software. Then click the layer option and double-click the corresponding layer to modify the engraving parameters and confirm.

Before starting engraving, click "Reset" on the machine, then click "Engraving". Click "Border" to confirm the engraving position, and finally click "Start Engraving".

Conclusion

By following the above steps, you can successfully complete engraving with the Ray5 mini using LaserBurn PC software. Proper device connection, parameter setup, and positioning ensure accurate and efficient engraving results.

By Laser Engraver Blogs | March 31, 2026
How to Adapt 3D Design to Material Thickness
How to Adapt 3D Design to Material Thickness

This article explains how to adjust the joint sizes in 3D design files according to material thickness, enabling accurate 3D model production on Longer Laser Engravers. By setting the correct scaling points and joint sizes in LightBurn, different material thicknesses can be easily accommodated, ensuring model integrity and assembly accuracy.

Material Dependence of 3D Models

However, unlike other types of creations, 3D models are highly dependent on the thickness of the material used. In fact, in drawing software, such as Lightburn, it is necessary to define a fixed size for the joints, but this is valid as long as the thickness of the material corresponds to that size.

However, unlike other types of creations, 3D models are highly dependent on the thickness of the material used. In fact, in drawing software, such as Lightburn, it is necessary to define a fixed size for the joints, but this is valid as long as the thickness of the material corresponds to that size.

Adjusting Joint Sizes

For example, in the image shown here, the thickness set for the joints is 4.1 mm, i.e. suitable for materials with a thickness of 4 mm.

To understand which other pieces are about the joints, you can evaluate each size identical to the previous one, in the 4.1 mm example.

At this point, suppose you want to use a material with a thickness of 5mm; then, the joints must be set to 5.1mm. To do this, avoiding deforming the 3D model, you need to set the center as the scaling point, then set 5.1 mm.

As for the other component, having a different type of joint, it is necessary to set the lower edge as the resize point, then set 5.1mm.

However, this can result in a shifting of the drawing, as shown in the figure.

In this case, it is sufficient to move the segment manually, so as to align it with the new thickness set; if necessary, add the missing parts via the LightBurn editor.

Complete Adjustment

Following this logic, all joint sizes in the drawing can be adjusted to match the new material thickness (e.g., 5 mm), producing a LightBurn file ready for the new material. This method allows any LightBurn design to be modified simply and effectively while maintaining joint and model integrity.

Processing and Assembly

Once the joint sizes are correctly set, the design can be processed on the Longer Laser Engraver via LightBurn. After processing, a quick assembly produces the final 3D model.

Conclusion

By correctly setting scaling points and joint sizes in LightBurn, users can easily adapt 3D design files to different material thicknesses, achieving precise engraving and assembly. This provides an efficient and reliable solution for producing 3D models on Longer Laser Engravers.

By Laser Engraver Blogs | March 30, 2026