The laser engraving technique has taken the front row in delivering personalized engraved items as per requirement. As the laser engraving process involves permanently carving the desired text or image on a material’s surface with precise focusing of a high-powered laser beam, it requires proper setup.

Any desired design or photo can be laser engraved onto a material using graphic design software compatible with the laser engraver. In this regard, Lightburn is considered a layout, editing, and control software that works seamlessly with a diverse range of laser engravers.

ComMarker offers the most premium quality laser engravers which allow easy connectivity with Lightburn resulting in high-quality engraving results. However, the outcome of the project also heavily relies on the speed, power, and mode set for the laser engraver.

These determine engraving depth, detail, textures, visual effects, and reduction of material damage. To elaborate on how different speeds and modes affect the photo engraving on a material, we have conducted an experiment where a ComMarker B4 fiber laser marking machine is set up.

There is Lightburn software installed that gauges the working of the laser engraver. The purpose of the experiment is to explore how different modes of the Lightburn software affect the engraving of a photo on a material. To gain more details, refer to our detailed article below.

The Experiment Setup

Within the arrangement, the laser engraver used is the ComMarker B4, which is one of the leading fiber laser engravers offered by the firm. The materials compatible with the laser engraver are aluminum, stainless steel, gold, silver, titanium, some acrylics, cowhide leather, painted wood, and plastics.

ComMarker B4 20W fiber laser engraver

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The laser engraver is placed on a flat desk and plugged into a power source in this setup. The parameters of the ComMarker B4 in place for the experiment are the speed set at 1000mm/sec, and the max power of 30% applied. The Line Interval is set at 0.06 with the Dither sample at 0.020.

The software used for the experiment is Lightburn to create and edit vector graphics from within the software directly. Various formats like AI, DXF, PDF, SVG, and image files can be imported into the software. Import any desired picture from the files of your desktop on the software.

The next step is to adjust the size of the picture according to the engraving that needs to be done. In the set-up, the image is set with a height of 32.25 mm and a width of 40.963mm. After that, the mode needs to be chosen which will determine the texture, details, and the overall loom of the picture created on the material.

Modes Explored

Now let’s talk about the modes that can be used for the picture marking in the ComMarker B4 fiber laser engraver and how they affect the overall result of the image produced. Here are some we would like to mention below.

1. Threshold Mode

The images with clear contrast, for simple black and white lines this mode is used. Two-colored images, like the one used in the experiment, logos, and texts can be made with this mode of the Lightburn.

Apart from this to create outlines of certain images, this mode can also be applied. At the set power level, pixels darker than the threshold mode set are engraved. Choose the Threshold mode from the mode option within the software.

The engraving depth is the same in this mode, and it cannot be varied. With the experiment, a picture is created with only the outline and black and white lines visible, but the details are not clear. This mode is not ideal for grayscale images.

2. Ordered Mode

Next, we have the ordered mode chosen for the experiment, mostly used for the grayscale effect. To engrave cartoons, unshaded images, and a structured picture, ordered dithering mode is a potent mode. A predefined grid or pattern like the Bayer matrix, or Stucki matrix is used in this mode.

If the partitioning is visible in the image provided, then the shading done on the image comes out in good quality. In the experiment, the image created with this effect is balanced and every detail is visible.

3. Atkinson Mode

Another mode that can be used for picture marking through Lightburn is Atkinson Mode. Images with subtle details like illustrations or photographs can be created by selecting this mode. This is a mid-way option and a standard approach for solid colors and smoothly shaded images. It preserves more details of the photo and reduces noise. However, this works slower than threshold mode and takes more time to create all the details of the image precisely.

Within this mode, in the B4 jpt fiber laser engraver different error diffusion levels should be considered. This is to adjust the balance between the detail and processing speed. In the experiment conducted, the image created with this mode is precise, with the lines and details visible and in balance with the lighter parts of the image.

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Category: Laser Engravers, B Series, B4 Mopa Fiber Laser Engraver, Fiber Laser Engravers

4. Theard Mode (Floyd Steinberg Diffusion Dithering)

This is a common dithering algorithm used in grayscale engraving from a laser engraver. For photorealistic image creation, this is ideal. This engraving method uses a pattern of engraved and non-engraved pixels to create the illusion of continuous tones in grayscale.

Select the “Floyd-Steinberg” pattern from the Ordered Dithering option in the Lightburn software to enable this specific dithering method. In this experiment, it is not considered the best choice for picture marking in this experiment, as it creates a light image with the darker details not entirely visible.

5. Stucki Mode

For high-quality dithering, Stucki mode is mostly chosen to create photo images during laser engraving. To compare pixel brightness against other thresholds, use a predefined grid or pattern for better results, like Stucki 16×16, Stucki 4×4.

Compared to other methods, this mode provides precise control over grayscale transitions within the photo. This mode is also comparatively faster than others, creating better results. You have to adjust the dithering level to control the size of the dithering pattern and processing speed in Stucki mode.

A well-balanced picture is created in this experiment with this mode and all the depths, lines, and minor details are easily visible. This makes it a viable option for grayscale image engraving on different materials, creating some of the top selling laser engraved products.

6. Jarvis Mode

A superior mode among all these used through the Lightburn software for precise image creation is the Jarvis mode. It offers excellent details and the transitioning between different shades provided through this mode is seamless, making it a popular option.

It can be selected from the image mode in the software and applied to the desired material. With reduced noise in the picture and relatively faster processing speed than other dithering modes, Jarvis is considered one of the most prominent modes. It is a valuable tool providing high visual quality for smooth-shaded photos.

The most outstanding image is created as a result of this mode in the experiment conducted, which is the closest resemblance to the image provided for engraving. The colors are balanced with all lines visible.

7. Newsprint Mode

The halftone effect of printed newspapers can be created by choosing the newsprint mode through Lightburn. To achieve this effect, it uses a pattern of dots of varied sizes to represent the image’s various grayscale tones.

When you are trying to achieve a vintage newspaper printing style on a material, then the dot pattern created by this mode is ideal. Simple image creation can be done through this mode. The outcome of using this mode in the experiment performed is accurate and visually of top-notch quality. This mode is highly effective as it works at a high engraving speed.

8. Halftone Mode

The next mode we want to mention used in the experiment is the halftone mode, which provides various engraving depths depending on the image brightness. When the image that needs to be engraved is of moderate to high detail quality, then halftone mode comes in use.

This is a step ahead of the newspaper mode, where the noise can be visible in the picture, making it appear with grains. Instead of fixed-size dots, Halftone Mode utilizes cells of varying sizes to represent different shades. In the experiment, the use of Halftone mode creates better brightness for the darker areas by reducing the contrast levels.

9. Sketch Mode

Sometimes there is a requirement to engrave line drawings and handwriting on a specific material. The sketch mode comes into play in this retard, this mode within Lightburn is specifically used for handwriting. It detects the edges of the image and only prints that.

In the experiment, this creates a poor-quality image, as only edges and lines are printed on the material. The image is not visible and with no shading, the image is not complete. This mode has limitations in its use and is only useful for certain types of images.

10. Grayscale Mode

Finally, we have the grayscale mode, which allows 3D engraving easily, but with specific laser types like CO2. Using LightBurn’s Grayscale Mode,  3D engraving can be achieved.

The engraving depth is adjusted according to the image’s brightness, resulting in realistic grayscale effects. In comparison to other modes, such as dithering, it provides the most degree of detail and makes the cleanest transitions.

Photos, portraits, artwork with delicate coloring, and elaborate patterns all perform well in this engraving technique. A fine image with all depth and details visible is created with this mode in the experiment. It is highly compatible with fiber laser machines like ComMarker B4.

Results and Analysis,

All in all, the ComMarker B4 mopa fiber laser engraver is a perfect tool for creating grayscale and colored images according to the provided picture. With our findings in the experiment, Jarvis mode create the most detailed and clear images of the material under similar settings.

The rest of the modes require adjustments to create an ideal result. The final product and image engraved as a result of using this mode are marketable and of high quality. This will directly result in high sales for the firm as it is precise to create custom designs for the customers.

Conclusion

The Print-on-demand industry has seen tremendous growth in recent years due to the rise of digital media and awareness of innovative products in the global market. Laser engraving is seen as a technique that is preferred by SMEs and big corporations alike to print high-quality images on desired products. Within this, Lightburn is considered a software that is highly compatible with the majority of laser engravers.

The experiment performed in this article was done through ComMarker B4 fiber laser engraving machine. The software comes with a variety of modes, among which Jarvis Mode is  popular choice due to its pristine result created in the experiment conducted. We hope this article was of maximum help to you.

For a more detailed demonstration of the photo engraving process using LightBurn with the ComMarker B4 laser engraver, you can view our video here: https://youtu.be/UAq0SaKYz4I?feature=shared

These cutting-edge models are just perfect for intricate designs and accurate engravings on various materials. Though many associate them with serving the same purpose, their marking capability and working efficiency are technically different. Viewing them closer, you may find them a bit different in structural makeup, versatility, and applicability.

Now, if you want a simple answer to “What makes them apart?” the short answer is: It depends on the intricacies of the engraving project at hand, where fiber lasers excel in bulk metal applications, and MOPA lasers carve objects demanding tailored pulse configurations and color marking across diverse materials.

However, both technologies work wonders in their field; this blog will further clarify what exactly you should consider when you’ve specific engraving needs. So, Keep reading!

Introduction
 – Brief Overview Of Laser Technology And Its Evolution.

More generally, Laser engraving is a transformative and widely adopted technology today, finding its way to the forefront of every manufacturing setup. A system well-defined for its precision and versatility has evolved dramatically since its inception. As soon as it shows its practical effectiveness, it undergoes continuous innovations and leads to diverse applications and scientific advancements.

Today, when businesses or industrialists look for solutions for product traceability, serial codes, logos, personalized texts, and other manufacturing-related applications, laser machines are the only go-to solution with diverse functionalities and repeated solutions.

From aerospace implementations to usage for more personal projects, laser engraving, and marking technology has revolutionized everything we see in day-to-day life.

Going behind, these remarkable machines hit the market in the 1960s, and soon after that, they were adopted as practical tools for industrial manufacturing in the 1970s. However, the first ever laser project documented in history was the production of printed circuit boards.

It further evolved into a versatile tool for material processing and customizable marking of a number of objects with unbeaten precision, allowing for more complex – yet also impeccable – engraving results.

Importance Of Understanding Different Laser Types For Various Engraving Needs.

Getting to know each laser engraving machine’s inside-out–the specs and material processing ability is a must-have knowledge impacting productivity, efficiency, and quality of the engraving tasks at hand. The broader product portfolio of systems such as Fiber, MOPA, CO2, Diode, and UV–all cater to diverse material and application requirements.

Obviously, a machine built explicitly for metal engraving would not yield optimal results when applied to wood and plastics.  Similarly, the disparity between each laser model is characterized by speed power, wavelengths, and pulse duration, yet no single machine is an absolute one for all. In fact, the material put under the laser head reacts differently as per its surface characteristics, depth, and thermal conductivity; hence, the right selection of machine becomes crucial.

On top of it, if processing bulk orders or carrying industrial-level engravings is the demand, fiber laser systems, in this case, would work incredibly well with unmatched efficiency.

Just like that, when color marking is the concerns, as offered by B4 MOPA JPT,  the features enhance the versatility of the system and round out the decision-making process.

 Section 1: Understanding MOPA Lasers

 – Definition And Basic Principles Of MOPA (Master Oscillator Power Amplifier) Lasers.

MOPA laser, which is elaborately called Master Oscillator Power Amplifier, is precisely a system comprised of two structures, i.e. a master optical laser that generates the initial beam and a power amplifier to boost the output power of the engraving source. The “fiber” element of this system is the delivery system for the laser and one that results in nearly zero energy loss.

Know that MOPA technology is the latest invention in the laser category, which allows this incredible device to achieve higher peak powers, unlike conventional laser units. The configurations provide greater flexibility over their frequencies, pulse durations, and energy, which are likely to give users the ability to perform a variety of applications, including detailed marking, customized engraving, and varied-level material processing.

Since MOPA is known to produce less heat, it greatly minimizes the chance of damage to the metal and the risk of corrosion and allows surface oxidation to mark colors on metal.

Remarkably, With the ComMarker B4 JPT MOPA Fiber laser, pulse duration varies and can be set in a range from 2 to 500 ns, with a frequency ranging from 0 kHz to 4000 kHz.

Just by Keeping the pulse duration short, you can achieve high contrast marking on plastics and deal with sensitive materials. In contrast, longer pulses can be used to engrave certain types of metals or for applications like deep engraving.By adjusting the pulse width and frequency, color engraving on metal can also be easily achieved.

The B4 JPT MOPA Fiber Laser is a popular choice among customers because it expands the range of applications and adds more value to your fiber laser marking system. Providing all the benefits of a standard fiber laser marking machine with the added advantage of flexible output power configurations (20W, 30W, 60W, and 100W), you can produce detailed markings on medical-grade materials, electronic components, jewelry metals, gemstones, and automotive parts.

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 Section 2: Understanding Fiber Lasers

 – Definition And Workings Of Fiber Lasers.

Simply put, a fiber laser is a type of laser where the active laser medium is an optical fiber fundamentally different from traditional lasers, which often rely on crystals or gas as the gain medium.

In the evolutionary world of marking and etching, fiber laser engraver, like the ComMarker B4, stand out as a prominent tool for precise and efficient engraving on different materials such as metal, plastic, and leather. The compact size, exceptional beam quality, remarkable 15000mm/s marking speed, and 0.01mm accuracy, coupled with an ability to mark extremely small spots, give it a huge spotlight.

It’s basically a non-contact processing that significantly reduces the chance of material damage; thus, it’s the most favorable one for intricate designs and delicate projects. These machines seamlessly integrate with Computer-aided software such as Lightburn so any digital image can be brought onto the material.

What’s most interesting is that B4 fiber laser engraver boast longevity and durability, providing stable performance with a 100,000-hour service life. The highly efficient technology also utilizes a solid-state design that reduces maintenance needs.

Thus, the B4 Fiber laser engravers become integral tools for product branding, serialization, traceability, and artistic engraving, increasing efficiency and precision in various industrial and commercial processes.

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 – Distinct Characteristics And Benefits Of Fiber Lasers.

The high productivity output and intricate design capability of fiber laser engraving technology are the reasons why they’re the most talked-about machine everywhere. The possibilities are seemingly endless for customized laser engravings, with almost no restrictions on complex designs and extensive inorganic material compatibility.

The models use optical fibers to create a laser beam with a transport fiber that transmits the laser to the system’s cutting head. The condensed, narrow beam cuts through metals of various thicknesses and works incredibly faster to etch the desired results.

You can use this system to engrave medals and awards or even to create customized décor or products. Some hobbyists and enthusiasts put it to work on personalized products for customers, offering unique and custom designs.

Thanks to its reputable user-friendliness. Individuals with personal machines can efficiently complete at-home projects and create personalized gifts for friends or family.

 Section 3: Technical Comparison

In essence, both fiber and MOPA lasers share the same fundamental principles and outlook; inside, they work differently. MOPA lasers excel in situations demanding a tailored approach to pulse parameters, while fiber lasers shine on engraving metal surfaces. The choice of laser depends on the materials, budget, engraving needs, and desired outcomes.

Technically speaking,  fiber and MOPA laser engraver show their disparity on grounds such as frequency, pulse duration. The pulses of standard fiber lasers are shorter, making them well-suited for precision engraving and markings. While the pulse duration varies with MOPA lasers, it goes well with applications requiring a broader spectrum of mark contrast.

In the case of the ComMarker B4 model, a fiber laser generates the beam within the engraving area of 110mm x 110mm for more power and 200mm x 200mm for large-scale engravings. On the other hand, the Master Oscillator Power Amplifier, MOPA JPT generates the laser beam by choosing multiple field mirror options from 70mm x 70mm to 200mm x 200mm, and this allows the machine to have a pulse frequency with more amplitude than the fiber, from 0 to 4000 kHz.

While these laser technologies can process many of the same materials, only MOPA lasers can color-mark stainless steel and provide black and white engravings of anodized aluminum.

 Section 4: Application-Specific Differences

Now that you’re aware of the technical aspects of both the system, MOPA, and fiber laser engraver, find some disparity in the application fields.

Undoubtedly, The efficient use of fiber lasers for metal markings is unmatched, expanding its demands for bulk processing in various industries such as electronics, oil and gas, aerospace, and a variety of plastic materials.

But when it comes to working on these needs, including color engraving, contrast marking, MOPA engravers are better choices than fiber laser engravers. This is because these models integrate fiber laser for initial laser beam generation and an added power amplifier to strengthen the power output, ultimately producing impeccable engraving results with every use.

Simply put, if you want to engrave thousands of metal pieces a day with colorful logos, you should definitely get your hands on the B4 MOPA JPT fiber laser laser model from ComMarker.

 Section 5: Maintenance and Cost Considerations

Reviewing the maintenance and cost elements of both systems–fiber and MOPA–is crucial as they dictate the economic viability and efficiency of the machines.

When it comes to fiber laser systems, fortunately, they’re the ones known to be the most cost-effective in terms of operational efficiency. The integrated electro-optical efficiency is as high as 20% or more, which significantly saves power consumption during work.

With having a high wall-plug competency, referring to the conversion process of a larger portion of their input power into laser output, you face very little operational expense. Although the initial investment expense is slightly higher, most commercial-grade laser engraver, such as B4 fiber laser models, range from $2k for a small footprint and output power (20kW – 100kW) machine to more than $100k, but the massive benefits over the machine’s life justify the initial capital expenditure.

Additionally, the construction of fiber laser engravers is compact, sturdy, and durable, meaning you can expect them to run for an estimated lifespan of over 100,000 hours. Further, the absence of moving parts in this laser source cancels out the potential for mechanical failures, which you can associate with less downtime and nearly zero maintenance costs. This strengthens the reliability and longevity aspect of the machine, which clearly translates to a lower total ownership cost over time.

On the other hand, MOPA technology offers flexibility in pulse parameters, so apparently, it’s likely to stand ahead in terms of costs. Someone opting for it for the first time may find the initial investment costs a bit higher, up to $3k, but he would find the added features and versatility outweigh the cost, especially for applications requiring customized pulse duration and frequency rate.

However, many experts say that their dual structural makeup–the master oscillator and power amplifier- may slightly require more regular check-ups than their counterparts, but all it ensures that the machine can keep its integrity for long-term optimal performance.

 Section 6: Pros and Cons of Each Type

 – Advantages And Limitations Of MOPA Lasers

When MOPA technology is brought under scrutiny, it’s apparently the most indispensable and versatile engraving tool that facilitates businesses across various industries, from retail, manufacturing, engineering, and creative.

This marking system offers you maximum control over the high-contrast laser’s interaction with materials with varying surface characteristics, just like plastics, so you may end up having optimal results and improved visibility and readability in various applications.

The most definitive feature of MOPA lasers is that they can produce assorted colors on certain metals, such as stainless steel, and high contrast markings on anodized aluminum by altering pulse durations and frequencies, a feature usually unavailable in many other laser types.

Because pulse durations are customizable, MOPA lasers reduce the heat-affected zone on the material being processed. This reduces thermal damage and discoloration, preserving material integrity and achieving absolute details, mainly when working with sensitive materials.

Regarding MOPA fiber lasers, They don’t have any moving parts or consumables, meaning they’re fully sealed against dust and dirt, leading to lower maintenance requirements than other lasers.

The initial drawback of this technology could be its price, but the engraving quality it marks and the application flexibility largely compensate for the cost.

 – Advantages And Challenges Associated With Fiber Lasers

When we talk about laser technology, fiber laser engraver have clearly revolutionized the industry, opening avenues for increased production efficiencies. These laser models deliver exceptional beam quality, characterized by 0.01mm accurate focus and precision, so ideally, it goes well for tasks requiring intricate designing and speed markings.

You should know that Fiber lasers utilize a wavelength of 1.06 μm, so you can see that it gets absorbed into many materials, with only a minor percentage of the laser’s rays reflected.

Since the work involves non-contact processing, there’s hardly any chance of material damage or surface burning, allowing the engraving of irregular shapes, including cylindrical ones, to be easy. This surely makes fiber lasers the most reliable and almost maintenance-free. Thus, fiber lasers boast excellent stability in high-temperature and vibrational working conditions.

Though the fiber’s tiny core produces the beam, the machine can possibly create a high-quality, straight optical beam with less diffraction than with other methods.

All in all, when it comes to operational efficiency, it’s pretty outstanding, with unparalleled high wall-plug efficiency translating to environmentally friendly options, positioning them as a huge saver of operating costs.

 Conclusion

When it comes down to defining the two major-hit laser technologies, Fiber and MOPA, we can’t conclude without saying that these two, when introduced to the world, have made material processing and engraving objects very handy.

Undoubtedly, The high-performing units of ComMarker, both B4 fiber lasers and MOPA JPT, are built to outperform many traditional laser systems in accuracy, precision, and operational efficiency.

However, the former, that is the fiber laser models. competes incredibly well in processing bulk orders with a speed capability of 15,000mm/s, while the latter, MOPA excel in achieving color marks and contrast engravings on stainless steel and anodized aluminum.

What exactly you need to do is have the right tools and adequate knowledge to execute the task accurately and effectively. Whether you invest in fiber laser machines or MOPA systems for cutting, welding, or engraving, ComMarker is a reliable service provider that can assist you in finding the right solution for your specific needs.