The Ultimate Guide to Laser Engraving Settings for Every Material

One of the first things every new laser owner searches for is the "perfect" laser engraving settings. It's an understandable question, you want to skip the trial and error and get great results right away. Unfortunately, there isn't a single set of settings that works for every machine, material, or project.

Even two identical laser engravers can produce different results depending on their power output, focus, material quality, maintenance, and countless other variables. A setting that works perfectly for one person may scorch your project or barely leave a mark on yours.

The good news is that you don't need perfect settings to create beautiful engravings. What you need is a solid starting point and an understanding of how to make small adjustments with confidence. In this guide, we'll explain the factors that affect laser settings, share recommended starting points for common materials, and teach you how to dial in your laser so you can achieve consistent, professional-looking results.

Why Settings Aren’t Universal

If you've ever searched for laser engraving settings online, you've probably found dozens of spreadsheets, forum posts, and YouTube videos sharing exact numbers for different materials. While these can be excellent starting points, it's important to remember that they're just that, starting points.

Laser engraving isn't an exact science where one set of numbers works for everyone. Even two people using the same machine on the same material can end up with noticeably different results. That's because countless variables influence how a laser interacts with a surface.

The more you understand these variables, the easier it becomes to adjust your settings with confidence instead of relying on trial and error.

Your Laser Machine

Not all laser engravers work the same way. The type of laser you own has one of the biggest impacts on the settings you'll use.

Diode lasers are popular with hobbyists and small businesses because they're affordable, versatile, and excellent for materials like wood, leather, slate, and coated metals.

CO₂ lasers generally engrave and cut many non-metal materials more quickly and are especially well suited for acrylic, glass, and production work.

Fiber lasers use a completely different wavelength that's designed primarily for engraving metals such as stainless steel, aluminum, brass, and titanium.

Because each laser technology delivers energy differently, settings that work on one type of machine rarely translate directly to another.

Laser Power

Power matters, but more isn't always better.

A 5W hobby laser and a 40W desktop laser deliver very different amounts of energy to the material. Even within the same product line, manufacturers often recommend different settings for machines with different wattages.

Hybrid machines, such as the xTool F1 Ultra, add another layer by combining multiple laser sources in a single machine. Depending on the material you're engraving, you may be using either the diode laser or the fiber laser, each with its own ideal settings.

Rather than copying someone else's numbers, always look for recommendations that match your specific machine and power level.

Material Quality

The material itself can have just as much impact as the laser.

Two pieces of plywood purchased from different suppliers may be engraved completely differently due to variations in wood species, glue layers, moisture content, and surface finish. The same is true for slate, leather, acrylic, coated metals, and nearly every other engraving material.

For example:

• Budget plywood may contain inconsistent glue layers that burn unevenly.
• Premium maple often engraves more cleanly than lower-grade hardwoods.
• Some slate naturally produces brighter contrast than others.
• Leather varies depending on whether it's genuine, vegetable-tanned, chrome-tanned, or synthetic.
• Powder-coated and anodized metals may require different settings, even though they look similar.

Even if you buy the same material repeatedly, small differences between production batches can affect the final result.

Machine Maintenance

Sometimes the problem isn't your settings at all.

A dirty lens can reduce laser power before it ever reaches the material. A slightly out-of-focus laser can make engravings appear lighter or blur fine details. Loose belts, worn components, or poor alignment can also affect engraving quality and consistency.

Before spending hours adjusting settings, it's worth taking a few minutes to make sure your machine is clean, properly focused, and operating as intended. Routine maintenance often solves problems that people mistakenly attribute to incorrect power or speed settings.

TomBomb Take

The best laser settings aren't a fixed recipe, they're a starting point.

Once you understand how your machine, material, and setup influence the engraving process, making small adjustments becomes much easier. Instead of searching endlessly for the "perfect" numbers, you'll know how to find the settings that work best for your machine and your materials.

The Five Settings Every Laser Owner Should Understand

Once you understand these five settings, you'll be able to engrave almost any material with confidence. While every laser machine has its own software and terminology, these core settings remain largely the same across most diode, CO₂, and fiber lasers.

Rather than memorizing numbers, focus on what each setting controls and how changing it affects the final engraving. Small adjustments often make a big difference.

Power

Power determines how much energy the laser delivers to the material. Think of it as the intensity of the laser beam. Higher power removes or alters more material, while lower power produces lighter, shallower engravings.

Increasing Power

Using more power generally creates:

• Darker engravings on wood
• Deeper engraving depth
• Faster cutting through materials
• Stronger marks on difficult surfaces

Too Much Power

More power isn't always better. Excessive power can lead to:

• Burn marks
• Excessive charring
• Melted edges
• Loss of fine detail
• Warping on thinner materials

Too Little Power

If power is too low, you may notice:

• Very light engravings
• Incomplete designs
• Poor contrast
• Uneven results
• The laser barely marks the surface

Rule of Thumb: Increase power when the laser isn't leaving enough of a mark. Reduce power if the material looks burned, melted, or over-processed.

Speed

Speed controls how quickly the laser moves across the material.

Imagine coloring with a marker. If you move slowly, more ink builds up in one spot. Move quickly, and the line becomes lighter. Lasers behave much the same way.

Faster Speeds

• Less heat
• Shallower engraving
• Reduced burning
• Faster job completion

Slower Speeds

• More heat
• Darker engravings
• Deeper engraving
• Increased cutting ability

Finding the Balance

Power and speed work together. Instead of dramatically increasing one setting, it's often better to make small adjustments to both until you achieve the appearance you're looking for.

DPI (Dots Per Inch) / Line Interval

DPI determines how much detail your laser places into an engraving.

Some software uses DPI, while others use Line Interval, but they control essentially the same concept: how closely each engraved line is spaced.

Higher DPI (or a smaller line interval) creates more overlapping lines, resulting in smoother images and finer detail.

Lower DPI leaves more space between lines, reducing engraving time but also reducing image quality.

Higher DPI

• Better photographs
• Smoother gradients
• Sharper detail
• Longer engraving times

Lower DPI

• Faster engravings
• Less detail
• Good for simple graphics and text

For photographs and highly detailed artwork, increasing DPI usually produces better results. For logos, simple designs, and text, lower DPI often provides an excellent balance between quality and speed.

Pass Count

A pass is simply the number of times your laser engraves the same design.

Instead of dramatically increasing power, many engravers choose to run multiple passes. This allows material to be removed gradually while reducing the risk of burning or damaging the surface.

One Pass

• Faster
• Suitable for most engravings
• Ideal for everyday projects

Multiple Passes

Useful when:

• Cutting thicker materials
• Creating deeper engravings
• Working with difficult materials
• Preserving fine detail while increasing depth

Keep in mind that each additional pass increases production time, so it's worth testing whether multiple lighter passes produce better results than a single high-power pass.

Air Assist

Air assist is often overlooked, but it can have a dramatic impact on engraving quality.

An air assist system blows a steady stream of air directly at the point where the laser meets the material. This helps remove smoke, cool the surface, and reduce debris that can interfere with the laser beam.

Benefits of Air Assist

• Cleaner engravings
• Less scorching
• Reduced smoke staining
• Better cutting performance
• Cleaner edges
• Longer lens life

When to Use It

Air assist is especially helpful when engraving or cutting wood, plywood, MDF, and many other materials that produce smoke or char easily.

However, it's not always the best choice. Some engravers intentionally turn air assist off, or reduce it, when working with materials like slate, where allowing a little residue to remain on the surface can sometimes produce slightly higher contrast. The ideal approach depends on your machine, material, and the look you're trying to achieve.

If your laser supports adjustable air assist, don't be afraid to experiment. It's another tool that can influence your results just as much as power or speed.

How These Settings Work Together

The most important thing to remember is that these settings don't work independently, they influence one another.

Changing one setting often means you'll need to adjust another to maintain the same engraving quality. For example, increasing your speed may require a slight increase in power, while reducing power might mean slowing the laser or adding another pass.

As you gain experience, you'll spend less time searching for the "perfect" settings and more time making small, confident adjustments based on the material in front of you.

Wood Settings

Wood is one of the most popular materials for laser engraving, and for good reason. It's affordable, widely available, and works beautifully for everything from cutting boards and ornaments to signs and personalized gifts. It's also one of the best materials for learning how laser settings affect your results.

The biggest thing to remember is that wood is a natural material. Every board has its own grain pattern, density, moisture content, and color, so even identical settings can produce slightly different engravings. Don't be surprised if two pieces of maple, or even two cutting boards from the same manufacturer, require small adjustments.

Best Starting Point

Rather than searching for the perfect numbers, start with your laser manufacturer's recommended settings for your specific machine and material. These recommendations provide a reliable baseline that's usually much closer than settings found randomly online.

Once you've completed a small test pattern, make adjustments one variable at a time. If your engraving is lighter than expected, try increasing the power slightly or slowing the engraving speed. If the wood is scorching or losing detail, reduce the power or increase the speed.

Making one change at a time makes it much easier to understand which adjustment actually improved your results.

Common Mistakes

Using Too Much Power

One of the most common beginner mistakes is assuming darker engravings always require more power.

In reality, excessive power often produces heavy charring, blurry edges, and unnecessary smoke staining. A slightly slower speed or a second pass can often create a cleaner result than dramatically increasing the power.

Ignoring the Wood Grain

Wood grain isn't just decorative, it directly affects how the laser interacts with the surface.

Soft grain may engrave deeper than harder grain, creating subtle differences across the design. This is completely normal and one of the reasons every engraved wood project is unique.

Skipping Test Engravings

Even if you've engraved the same material before, it's worth spending a few minutes running a small test whenever you switch wood species, suppliers, or blank manufacturers.

Those few minutes can save an expensive cutting board or sign from becoming scrap.

Test Before Every Project

Before engraving an important project, create a small test grid on a scrap piece of the same material. Adjust either power or speed, not both, and compare the results.

Testing helps you find the best balance between contrast, detail, and engraving time while reducing wasted materials. Over time, you'll build a library of settings that work reliably for your machine and your preferred wood products.

Tip: Label each test with the wood species, supplier, power, speed, DPI, and date. Keeping organized notes makes it much easier to recreate successful engravings in the future.

Slate Settings

Slate is one of the most beginner-friendly materials you can engrave. Unlike wood, it doesn't have grain patterns, knots, or varying densities that significantly affect the engraving. Instead, the laser creates microscopic fractures in the surface of the stone, revealing a light gray mark that contrasts beautifully against the natural black slate.

Because slate is relatively consistent from piece to piece, many laser owners find it's one of the easiest materials to dial in. Once you've found settings that work well for your machine, you'll often be able to reproduce similar results across future projects with only minor adjustments.

Best Starting Point

Begin with your laser manufacturer's recommended settings for slate, then engrave a small test pattern before committing to your final design.

If your engraving appears too light, make small adjustments by increasing the power or slightly reducing the engraving speed. If the design begins losing fine detail or develops rough, uneven edges, you've likely gone a little too far and should back the settings off.

Unlike many materials, slate often responds well to small changes, so there's rarely a need to make dramatic adjustments.

Common Mistakes

Using Damaged Slate

Natural slate often contains small chips, cracks, or surface imperfections. While many of these add character, larger defects can interfere with your engraving or make the finished product look uneven.

Take a moment to inspect each blank before starting, especially if you're creating products for customers.

Skipping Surface Cleaning

Slate frequently arrives with dust from manufacturing and shipping. Fingerprints, oils, or loose debris can also affect the appearance of the finished engraving.

A quick wipe with a lint-free cloth before engraving and then another after the project is complete helps produce cleaner, brighter results.

Making Large Setting Changes

One advantage of slate is its predictability. If your first test isn't perfect, resist the urge to dramatically change multiple settings at once.

Instead, adjust a single variable, such as power or speed, and test again. Small changes are usually all that's needed to fine-tune your results.

Test Before Every Project

Even though slate is one of the most consistent engraving materials available, it's still worth running a small test pattern whenever you switch suppliers or try a new style of slate.

Different colors, finishes, and manufacturing methods can produce subtle differences in contrast, and a quick test can help you find the cleanest, brightest result before engraving your final piece.

Tip: Save one coaster or small slate blank as your dedicated test piece. It's an inexpensive way to experiment with new settings without risking a customer order.

Leather Settings

Leather is one of the most rewarding materials to engrave. It creates rich contrast, engraves quickly, and works well for everything from patches and keychains to journals, wallets, and pet accessories. Whether you're working with genuine leather or high-quality faux leather, the right settings can produce crisp, professional-looking results.

The biggest challenge with leather is that not all products behave the same way. Genuine leather varies depending on the animal, tanning process, thickness, and finish, while faux leather differs by manufacturer and the materials used in its construction. Because of these differences, it's always worth running a quick test before engraving a finished product.

Best Starting Point

Start with your laser manufacturer's recommended settings for the specific type of leather you're using. If you're unsure whether the material is genuine or faux leather, check with the supplier before engraving.

Run a small test pattern in an inconspicuous area or on a scrap piece whenever possible. If the engraving is too light, make small adjustments by increasing the power or reducing the speed. If the edges become overly dark, rough, or begin to burn, reduce the power or increase the speed slightly.

Leather generally responds well to small changes, so avoid making large adjustments all at once.

Common Mistakes

Not Knowing the Type of Leather

Different leathers engrave differently. Vegetable-tanned leather, chrome-tanned leather, suede, and faux leather can all produce different results, even when they look similar.

Whenever possible, identify the material before engraving and use settings designed for that specific type.

Using Too Much Power

Leather doesn't usually require aggressive settings. Excessive power can burn the surface, create rough edges, or produce an unpleasant smell that lingers after engraving.

A cleaner result often comes from slightly lower power combined with careful speed adjustments.

Skipping a Test Engraving

Color, finish, and texture can all influence the final appearance. Even leather from the same supplier may vary slightly between production batches.

Testing first helps ensure you achieve the contrast and detail you're expecting before engraving a finished product.

Test Before Every Project

Leather is one of those materials where a five-minute test can save an expensive mistake. Try engraving a small logo, line of text, or simple graphic before committing to the full design.

Pay close attention to contrast, edge quality, and any discoloration around the engraving. Small adjustments often make a dramatic difference in the final appearance.

Tip: Keep a collection of small leather scraps from previous projects. They're perfect for testing settings, fonts, and artwork without risking your finished products.

 

Safety Note: Not every material marketed as "leather" is safe to laser engrave. Avoid materials containing PVC or vinyl, as they can release hazardous gases when exposed to a laser. If you're unsure what a product is made from, confirm the material with the manufacturer before engraving. 

Glass Settings

Glass produces some of the most elegant laser engravings, from personalized drinkware and awards to ornaments and decorative pieces. Instead of burning or removing material, the laser creates thousands of microscopic fractures on the surface, producing the frosted appearance that's become synonymous with engraved glass.

Because glass is brittle, it's less forgiving than materials like wood or slate. Small changes in power, speed, and focus can have a noticeable impact on the final result. Fortunately, with a little testing and patience, it's possible to create beautiful, professional-looking engravings on a wide variety of glass products.

Best Starting Point

Always begin with your laser manufacturer's recommended settings for glass and test on a similar piece before engraving your final project.

Glass typically responds best to gradual adjustments. If the engraving appears too light, increase the laser's energy in small increments rather than making dramatic changes. If the engraving begins to chip excessively or lose detail, reduce the amount of energy reaching the surface by lowering the power, increasing the speed, or adjusting the number of passes.

Because every type of glass behaves a little differently, testing is especially important.

Common Mistakes

Assuming All Glass Engraves the Same

Not all glass is created equal. Drinking glasses, wine bottles, tempered glass, crystal, borosilicate glass, and decorative glass can all respond differently to a laser.

Even two glasses that look nearly identical may require slightly different settings.

Using Too Much Power

More power doesn't necessarily create a better engraving. Excessive energy can produce rough, overly fractured surfaces or even increase the risk of cracking.

Small, gradual adjustments usually produce cleaner, more attractive frosted engravings.

Skipping Surface Preparation

Fingerprints, dust, and oils can affect the consistency of the engraving. Cleaning the glass before engraving helps produce more even results and makes positioning artwork easier.

Some makers also apply masking materials or specialty coatings depending on their machine and workflow, though the best approach varies by equipment and personal preference.

Test Before Every Project

Glass is one of the materials where testing can make the biggest difference. Before engraving an expensive tumbler, ornament, or award, run a small test on a similar piece whenever possible.

If you're using a new brand of glass or switching between different styles, don't assume your previous settings will transfer perfectly. Spending a few minutes testing can help prevent costly mistakes and improve the overall appearance of the finished engraving.

Tip: Save a few inexpensive drinking glasses or bottles specifically for testing. They're a great way to experiment with new settings before working on customer orders.

A Note About Glass Types

Different types of glass can produce very different results.

• Soda-lime glass (the most common household glass) generally engraves well.
• Borosilicate glass (such as laboratory glassware and some bakeware) is more resistant to thermal shock and may require different settings.
• Tempered glass can be unpredictable because of the internal stresses created during manufacturing. Some pieces engrave successfully, while others may crack during the process.

If you're unsure what type of glass you're working with, test on an inexpensive piece first rather than risking a valuable project.

Tip: Depending on your laser and the type of glass you're engraving, you may come across techniques that use temporary coatings such as chalk sprays, washable paint, or specialized marking products. These methods can improve results on some machines, but they aren't required for every setup. Always follow your laser manufacturer's recommendations and test on a spare piece first. 

Acrylic Settings

Acrylic is one of the most versatile materials for laser engraving. It's used for signs, ornaments, keychains, displays, awards, business branding, and countless other projects. Depending on the type of acrylic you're working with, you can create everything from crisp engraved text to polished cut edges.

One thing that surprises many beginners is that not all acrylic behaves the same way. Color, transparency, and even the manufacturing process can dramatically affect both the appearance of the engraving and the settings you'll need.

Best Starting Point

Always begin with your laser manufacturer's recommended settings for the specific type of acrylic you're using. Acrylic varies much more than many people expect, so it's important to know whether you're engraving clear, opaque, cast, or extruded acrylic before getting started.

Run a small test pattern before engraving your final piece. If the engraving lacks contrast, make small adjustments to power or speed until you achieve the look you're after. As with any material, change one setting at a time so you can clearly see what each adjustment does.

Understanding Acrylic Types

Black Acrylic

Black acrylic is one of the easiest acrylics to engrave because the engraved areas create excellent contrast against the dark surface. It's commonly used for business signs, nameplates, decorative pieces, and personalized gifts.

Depending on the type of laser you're using, engraved areas may appear white, light gray, or frosted, making designs easy to read even from a distance.

Opaque Acrylic

Opaque acrylic is available in a wide variety of colors and generally engraves well with both diode and CO₂ lasers.

The final appearance depends on the acrylic itself. Some colors produce bright white engravings, while others reveal lighter shades of the base material. Testing is the best way to see how a particular sheet will respond.

Clear Acrylic

Clear acrylic often surprises beginners.

Instead of producing bold white engravings, it usually develops a subtle frosted appearance that becomes much more visible when viewed against a contrasting background or illuminated from the edge.

Because of this effect, clear acrylic is especially popular for LED signs, awards, decorative displays, and edge-lit projects.

It's worth noting that many diode lasers cannot cut clear acrylic effectively because of the laser's wavelength, even though they may still engrave certain types of clear acrylic. CO₂ lasers generally perform much better with clear acrylic.

Common Mistakes

Assuming All Acrylic Is the Same

One sheet of acrylic can behave very differently from another. Color, thickness, manufacturer, and whether it's cast or extruded all influence the final engraving.

Whenever possible, record exactly which acrylic you're using so you can reproduce successful results later.

Using Too Much Power

Excessive power can melt acrylic instead of engraving it cleanly. Melted edges, excessive residue, or a rough finish are often signs that your settings need adjustment.

Small changes usually produce much cleaner results than dramatic increases in power.

Skipping Material Identification

Many beginners don't realize whether they're working with cast or extruded acrylic.

In general:

• Cast acrylic typically engraves with a brighter, frosted appearance and is often preferred for engraved signs and decorative work.
• Extruded acrylic usually engraves with less contrast but can produce smoother cut edges.

Knowing which type you're using can save a lot of frustration when comparing settings online.

Test Before Every Project

Acrylic is one of the easiest materials to test because small sample pieces are inexpensive and easy to keep on hand.

Before engraving a customer order or large sign, run a quick test using the same color, thickness, and type of acrylic. This helps you verify both your settings and the appearance of the finished engraving.

Tip: Label your leftover acrylic offcuts with the color, thickness, manufacturer, and whether they're cast or extruded. They make excellent test pieces and can save both time and material on future projects.

Compatibility Note: Before purchasing acrylic, check whether it's compatible with your laser. While most CO₂ lasers engrave and cut acrylic exceptionally well, diode lasers may have difficulty cutting certain colors, especially clear acrylic, because of differences in laser wavelength. Understanding your machine's capabilities before buying materials can save both time and money. 

Painted Canvas Settings

Painted canvas has become a popular medium for laser engraving because it allows you to create stunning grayscale artwork and photographs with a unique handcrafted appearance. Rather than engraving directly into the canvas itself, the laser removes a layer of paint to reveal the lighter canvas underneath, creating contrast through subtraction instead of burning.

The quality of the finished engraving depends on several factors, including the type of paint, the number of paint layers, canvas texture, and your laser settings. Because there are so many variables, testing is especially important before engraving a finished piece.

Best Starting Point

Begin with your laser manufacturer's recommended settings for painted canvas, then create a small test pattern using the same paint and canvas combination you'll use for your final project.

Many makers apply multiple thin coats of paint rather than one thick coat. Thin, even layers often produce cleaner engravings and reduce the chance of leaving partially removed paint behind.

If the engraving appears too light, gradually increase the laser's energy by making small adjustments to power or speed. If the laser begins burning through the canvas or exposing too much material, reduce the energy and test again.

Common Mistakes

Applying Paint Too Thickly

Heavy paint layers may not remove evenly, leaving rough edges or inconsistent contrast.

Several light coats generally produce smoother, more predictable engravings than one thick application.

Burning Through the Canvas

The goal is to remove the paint, not damage the canvas underneath.

If you notice scorching, fraying, or holes developing in the fabric, the laser is delivering more energy than necessary. Small reductions in power or slightly faster engraving speeds often solve the problem.

Skipping Image Preparation

High-quality engravings start with high-quality artwork.

Photographs with good contrast, proper resolution, and thoughtful image processing typically engrave much better than unedited images. Taking a few minutes to prepare the artwork before engraving can dramatically improve the final result.

Test Before Every Project

Painted canvas is one of those materials where every combination behaves a little differently. Different brands of canvas, paint finishes, colors, and even drying times can all influence the engraving.

Before starting a finished piece, engrave a small section using the same materials and settings. A simple test helps confirm that the paint removes cleanly while preserving the canvas beneath.

Tip: Label each sample with the paint brand, color, number of coats, drying time, and laser settings. Over time, you'll build a reference library that makes future projects much easier to reproduce.

Preparation Matters: Even perfect laser settings can't compensate for a poor-quality image. Before engraving photographs or artwork onto painted canvas, spend a little time adjusting contrast, brightness, and resolution. A well-prepared image often has a bigger impact on the finished engraving than small changes to your laser settings. 

Coated Metal Settings

Coated metals are some of the most popular materials for laser engraving, especially for personalized drinkware, pet tags, business merchandise, and promotional products. The good news is that many diode and CO₂ lasers can produce beautiful, high-contrast engravings on coated metals without needing the power required for deep metal engraving.

The key is understanding what the laser is actually doing. In most cases, the laser isn't engraving the metal itself, it's removing or altering the coating to expose the metal underneath. This creates the sharp contrast seen on products like tumblers, powder-coated bottles, anodized aluminum business cards, and coated pet tags.

Best Starting Point

Start with your laser manufacturer's recommended settings for the specific coated metal you're engraving. Coatings vary widely between manufacturers, so settings that work perfectly on one tumbler or dog tag may need slight adjustments on another.

Run a small test in an inconspicuous area whenever possible. If the coating isn't being removed cleanly, gradually increase the laser's energy by making small adjustments to power or speed. If the engraving appears rough or begins affecting the exposed metal underneath, reduce the energy slightly and test again.

As with every material, changing one setting at a time makes it much easier to understand what's improving your results.

Common Mistakes

Assuming All Coatings Behave the Same

Not all coated metals use the same finish. Powder coating, paint, anodizing, Cerakote, and other specialty coatings all react differently to a laser.

Even products from the same manufacturer may behave differently depending on the color or production batch.

Using Too Much Power

The goal is usually to remove the coating, not to damage the metal beneath it.

Excessive power can create rough edges, discoloration, or unwanted marks on the exposed metal. Small adjustments often produce cleaner engravings with sharper detail.

Skipping Material Testing

A black powder-coated tumbler and a black anodized aluminum tag may look similar, but they'll often require different settings.

Testing on the same type of product before engraving a customer order helps reduce mistakes and ensures clean, consistent results.

Common Types of Coated Metals

Powder-Coated Tumblers

Powder-coated drinkware is one of the most popular laser engraving products. The laser removes the colored coating to reveal the stainless steel underneath, creating bright, durable engravings that won't wash away or peel.

Anodized Aluminum

Anodized aluminum has a colored oxide layer that engraves beautifully with excellent contrast. It's commonly used for business cards, luggage tags, identification plates, keychains, and decorative projects.

Coated Pet Tags

Many aluminum and stainless steel pet tags feature colored coatings that laser engrave cleanly, revealing bright silver or natural metal beneath. They're an excellent beginner project because they engrave quickly and produce highly visible personalization.

Test Before Every Project

Although coated metals are generally very consistent, coatings can vary between brands and even between color options from the same manufacturer.

Before engraving a large batch of tumblers or tags, run a quick test on a spare item whenever possible. Spending a few minutes dialing in your settings is much easier than replacing an expensive customer order.

Tip: Keep notes on the manufacturer, coating type, color, and laser settings for each product. Building your own reference library will save time and help you reproduce consistent results as your business grows.

TomBomb Take: Coated metals are especially popular with small businesses because they allow makers to create premium-looking products with relatively simple equipment. Personalized tumblers, pet tags, keychains, bottle openers, business merchandise, and promotional gifts are just a few of the products that can be produced using coated metals. 

Stainless Steel Settings

Stainless steel is one of the most requested materials for laser engraving, but it's also one of the most misunderstood. Before you begin, it's important to know what your laser is actually capable of.

Unlike wood, slate, or coated metals, bare stainless steel doesn't respond the same way to every type of laser. The results you'll achieve depend heavily on the type of laser you're using, so understanding your machine's capabilities is the first step toward success.

Best Starting Point

Start with your laser manufacturer's recommended settings for stainless steel and identify which laser source you're using. Diode, CO₂, and fiber lasers all interact with stainless steel differently, and the recommended settings reflect those differences.

Before engraving a finished product, run a small test on a piece of the same stainless steel whenever possible. Small adjustments to power, speed, and the number of passes can noticeably affect the final result.

Marking vs. Engraving

One of the biggest misconceptions about stainless steel is that marking and engraving are the same thing. While they're often used interchangeably, they produce very different results.

Laser Marking

Laser marking changes the appearance of the metal without removing significant material. Depending on your machine and the settings used, the result may be a dark mark, a colored mark, or a subtle surface change.

For many hobbyists using diode lasers, marking is the most realistic expectation when working with bare stainless steel.

Laser Engraving

Laser engraving removes material from the surface, creating a recessed mark that you can often feel with your fingertip.

Deep engraving on stainless steel generally requires a fiber laser, which is specifically designed for metal. Fiber lasers can produce crisp, permanent engravings with excellent detail and are commonly used for industrial marking, jewelry, tools, and commercial metal products.

While some powerful diode or hybrid machines may produce shallow surface engraving or marking on certain stainless steel products, they generally aren't intended for deep metal engraving. If your goal is to create significant depth in bare stainless steel, a fiber laser is the better tool for the job.

Common Mistakes

Expecting Diode Lasers to Perform Like Fiber Lasers

Many beginners compare their results to videos created with fiber lasers without realizing they're using completely different technology.

A diode laser can produce excellent results on many materials, but bare stainless steel is where fiber lasers truly shine.

Using Too Much Power

Increasing the power isn't always the answer. Excessive energy can reduce detail, create unwanted discoloration, or leave inconsistent marks without producing deeper engraving.

Making small, controlled adjustments usually leads to cleaner and more predictable results.

Skipping Material Testing

Not all stainless steel products are manufactured the same way. Surface finish, coatings, alloy composition, and manufacturing processes can all influence how the material responds to a laser.

Testing before engraving an important project helps you understand how that specific product behaves.

Test Before Every Project

Even when engraving similar products, it's worth running a quick test whenever you switch suppliers or product lines.

A small test can help you verify contrast, depth, and overall appearance before engraving a finished knife, tumbler, dog tag, or personalized gift.

Tip: Keep a few inexpensive stainless steel blanks specifically for testing. They're a simple way to experiment with settings and build confidence before working on customer orders.

TomBomb Take: Hybrid machines that combine diode and fiber laser technology can bridge some of the gap by allowing users to engrave a wider variety of materials, including many bare metals. Even so, the ideal settings will depend on which laser source is being used and the specific stainless steel product you're engraving. 

Creating Your Own Material Library

One of the best habits you can develop as a laser engraver has nothing to do with your machine, it's keeping detailed records of what works.

While it's tempting to search the internet every time you try a new material, experienced makers know that their own settings library is far more valuable than any spreadsheet they can download. Every successful test becomes a reference you can return to, helping you reproduce great results with confidence.

Building your own library also saves time. Instead of starting from scratch with every project, you'll have a growing collection of proven settings for the materials and products you use most often.

What to Record

You don't need anything fancy. A simple notebook, spreadsheet, or digital document is enough. The important part is being consistent.

Whenever you find settings that work well, record details such as:

• Material type (wood, slate, leather, acrylic, etc.)
• Material species or product (maple, bamboo, powder-coated tumbler, black slate coaster)
• Supplier or manufacturer
• Material thickness
• Laser type and wattage
• Power
• Speed
• DPI or Line Interval
• Number of passes
• Air Assist (On or Off)
• Focus method (if applicable)
• Date tested
• Final result
• Notes about what you would change next time

The more information you capture, the easier it becomes to recreate successful engravings months, or even years, later.

Take Photos of Your Tests

Numbers only tell part of the story.

Whenever possible, photograph your finished test grids or sample engravings and save them alongside your settings. A quick photo makes it much easier to compare results and remember why one set of settings worked better than another.

Many experienced makers organize their photos into folders by material, making them just as valuable as their written notes.

Build a Library, Not a Spreadsheet

Your goal isn't to collect hundreds of random settings from the internet, it's to build a collection of settings that have been tested on your machine, with your materials.

Over time, you'll begin to notice patterns. You may discover that one supplier's slate consistently engraves brighter than another's, or that a particular brand of plywood always requires slightly less power. Those observations are difficult to find online, but they're incredibly valuable in your own workflow.

Keep Improving Your Notes

Your material library should evolve as you gain experience.

If you find a cleaner engraving by adjusting the speed or changing the number of passes, update your notes. Over time, you'll replace "good enough" settings with settings you know you can rely on.

The more projects you complete, the more valuable your library becomes, and the less time you'll spend guessing or searching for answers online.

Tip: Create a small test sample whenever you try a new material, even if you don't need it for a current project. Those few minutes of testing can save hours of frustration the next time you use that material.

TomBomb Take: Every experienced laser engraver has a settings library. The difference isn't that they've memorized hundreds of numbers, it's that they've documented what works. Your first few pages may only contain a handful of materials, but over time they'll become one of the most valuable tools in your workshop. 

How to Run a Test Grid

If there's one habit that will improve your laser engraving faster than anything else, it's running a test grid before engraving your final project.

A test grid lets you compare multiple combinations of power and speed on the same material, making it easy to see which settings produce the best balance of contrast, detail, and engraving quality. Instead of relying on guesswork, you'll make informed decisions based on real results.

Even experienced laser engravers use test grids whenever they switch materials, suppliers, or machines. Spending a few extra minutes testing can save expensive blanks and prevent disappointing results.

What Is a Test Grid?

A test grid is a simple pattern made up of small squares or rectangles, with each one engraved using a different combination of power and speed.

For example:

• Each row may represent a different power level.
• Each column may represent a different speed.

After the engraving finishes, you simply compare the results and choose the square that looks best.

Because every square uses slightly different settings, a test grid quickly reveals which combination works best for that specific material.

How to Run a Test Grid

Running a test grid is straightforward and only takes a few minutes.

1. Use a scrap piece or inexpensive blank made from the same material as your final project.
2. Create or download a test grid designed for your laser software.
3. Choose a reasonable range of power and speed settings based on your manufacturer's recommendations.
4. Engrave the test grid.
5. Compare the results and select the square that provides the appearance you're looking for.
6. Record those settings in your material library for future reference.

The goal isn't to find the "perfect" settings, it's to identify the best settings for your machine, your material, and your project.

Change One Variable at a Time

One of the biggest mistakes beginners make is changing multiple settings after every test.

For example, increasing the power, reducing the speed, changing the DPI, and adding another pass all at once make it impossible to know which adjustment actually improved the engraving.

Instead, make one small change, test again, and compare the results.

This method takes a little patience, but it leads to much more consistent and repeatable engravings over time.

Don't Skip Testing

It can be tempting to reuse the settings that worked on your last project, especially if you're engraving the same type of material.

But small differences in wood grain, slate, leather, coatings, or acrylic can all affect the final result. Even environmental factors like humidity or a slightly dirty lens can influence how your laser performs.

A quick test takes just a few minutes and can save you from ruining a finished product that took much longer and cost much more to replace.

Tip: Many laser makers keep inexpensive scrap pieces from previous projects specifically for testing. They're perfect for dialing in new settings without risking your final project.

A Small Test Can Save a Big Mistake

Think of a test grid as insurance for your project.

Whether you're engraving a $3 coaster or a $100 cutting board, a five-minute test is almost always worth the time. It builds confidence, reduces wasted materials, and helps you produce more consistent results every time you engrave.

Common Laser Engraving Settings Mistakes

Every laser engraver makes mistakes, especially when learning a new machine or material. The good news is that most engraving problems come down to just a handful of common issues, and once you know what to look for, they're usually easy to correct.

If your results aren't turning out the way you expected, check these common mistakes before assuming something is wrong with your laser.

Using Too Much Power

One of the biggest misconceptions in laser engraving is that more power always produces better results. In reality, excessive power often causes more problems than it solves.

Too much power can lead to:

• Excessive charring on wood
• Melted edges on acrylic
• Rough engravings on coated metals
• Loss of fine detail
• Unnecessary wear on the material

If your engravings look burned or overly aggressive, try reducing the power slightly or increasing the engraving speed before making larger adjustments.

Engraving Too Slowly

Power isn't the only setting that affects how much energy reaches the material. A slow engraving speed keeps the laser in one place longer, allowing more heat to build up.

Common signs your speed is too slow include:

• Burn marks
• Smoke staining
• Melted edges
• Excessively deep engravings
• Longer production times than necessary

Sometimes increasing the speed produces a cleaner result than lowering the power.

Incorrect Focus

Even perfect settings won't produce good results if your laser isn't properly focused.

An out-of-focus laser spreads its energy over a larger area instead of concentrating it into a fine point. The result is often lighter engravings, blurry details, and inconsistent performance.

Always verify your focus before starting an important project, especially after changing material thickness or repositioning your workpiece.

Skipping Test Engravings

It's tempting to jump straight into a finished project, especially if you've engraved similar materials before. Unfortunately, even small differences between blanks can affect your results.

Running a quick test takes only a few minutes and can save expensive materials, wasted time, and unnecessary frustration.

When in doubt, test first.

Ignoring Air Assist

Many beginners overlook air assist because it isn't always required, but it can have a noticeable impact on engraving quality.

Using air assist when appropriate can help:

• Reduce scorching on wood
• Produce cleaner cuts
• Minimize smoke staining
• Keep the engraving area free of debris

Remember that not every material benefits equally from air assist, so don't be afraid to experiment and compare your results.

Forgetting Basic Maintenance

Sometimes the issue isn't your settings at all.

A dirty lens, dusty mirrors, loose belts, or poor machine maintenance can all affect engraving quality. Before spending time adjusting power and speed, take a few minutes to inspect and clean your machine according to the manufacturer's recommendations.

Routine maintenance helps ensure your laser performs consistently and makes troubleshooting much easier.

Learn From Every Test

One imperfect engraving isn't a failure, it's feedback.

Every test teaches you something about your machine, your materials, or your settings. By making small adjustments, recording your results, and staying patient, you'll build confidence much faster than by trying to chase the "perfect" numbers from someone else's settings guide.

Tip: If something doesn't look right, resist the urge to change everything at once. Adjust a single setting, test again, and compare the results. Small, deliberate changes are the fastest path to consistent, professional-quality engravings.

Tips for Better Laser Engraving Results

Learning laser engraving isn't about finding one perfect set of settings, it's about developing good habits. As you gain experience, you'll discover that consistent, professional-looking results come from careful testing, patience, and attention to detail.

These simple practices can save time, reduce wasted materials, and help you produce better engravings regardless of the machine or material you're using.

Make Small Adjustments

When something doesn't look quite right, resist the urge to dramatically change your settings.

Small adjustments, whether it's slightly increasing the power, reducing the speed, or adding another pass, are much easier to evaluate than making several large changes at once.

Remember, your goal isn't to guess the perfect settings. It's to gradually dial them in.

Change One Variable at a Time

One of the fastest ways to become frustrated is by changing multiple settings between tests.

If you increase the power, reduce the speed, and adjust the DPI all at once, you'll never know which change actually improved the engraving.

Instead, adjust a single variable, run another test, and compare the results. This method may feel slower at first, but it builds confidence and produces far more consistent results over time.

Label Your Test Pieces

A test piece only has value if you remember how you created it.

Whenever possible, write the settings directly on the back of the material or attach a label that includes the power, speed, DPI, number of passes, and the date.

Six months from now, you'll be glad you did.

Keep Detailed Notes

Every successful engraving becomes part of your experience and your material library.

Whether you use a notebook, spreadsheet, or digital document, recording your settings makes it much easier to reproduce successful projects and troubleshoot future ones.

The more projects you complete, the more valuable your notes become.

Invest in Quality Materials

Even perfect settings can't compensate for poor-quality blanks.

Inconsistent plywood, low-grade slate, uneven leather, or cheaply coated metals can all produce unpredictable results. While premium materials may cost a little more upfront, they often reduce waste and make it easier to achieve reliable engravings.

If you find a supplier whose products engrave consistently, stick with them whenever possible.

Clean Materials Before Engraving

Dust, fingerprints, oils, and manufacturing residue can all affect the appearance of your engraving.

Before placing any material in your laser, take a moment to wipe it clean with a lint-free cloth or the cleaning method recommended for that material. Starting with a clean surface helps produce sharper, more consistent results and can reduce unnecessary cleanup afterward.

Be Patient With Yourself

Every experienced laser engraver has made mistakes, ruined blanks, and spent time experimenting with settings.

Those early tests aren't failures, they're part of the learning process.

Each project teaches you a little more about your machine, your materials, and how different settings affect the final result. The more you engrave, the more intuitive those adjustments become.

Tip: The goal isn't to memorize hundreds of settings. It's to understand how your laser behaves so you can confidently adjust it for any new material or project.

TomBomb Take: The best laser engravers aren't the ones with the biggest settings library, they're the ones that understand why those settings work. 

Frequently Asked Questions

Why don't my laser settings match the ones I found on YouTube?

That's completely normal. Even if you're using the same laser model as someone on YouTube, differences in material quality, machine calibration, laser power, focus, software, and even routine maintenance can affect the results. A setting that works perfectly for one person may produce a lighter engraving or even burn the material on another machine.

Instead of expecting identical results, use online settings as a starting point. Run a small test grid, make one adjustment at a time, and record what works for your machine. Over time, your own settings library will become far more valuable than anyone else's.

Can I copy someone else's laser settings?

Yes, but treat them as a starting point, not a guarantee.

Settings shared online can save you time by putting you in the right range, but they shouldn't be copied without testing first. Before using them, check whether the creator is using the same laser type, wattage, material, and software as you.

The closer your setup matches theirs, the more likely their settings will produce similar results. Even then, plan to make small adjustments based on your own test engravings.

Why does the same wood engrave differently?

Wood is a natural material, so no two pieces are exactly alike.

Species, grain direction, density, moisture content, surface finish, and even where the tree grew can influence how the laser interacts with the wood. Two cutting boards made from maple may engrave slightly differently, even if they come from the same supplier.

This natural variation is one reason test engravings are so important. A quick test helps you fine-tune your settings before engraving your final project.

Should I increase power or decrease speed?

Both adjustments increase the amount of energy delivered to the material, but they don't always produce the same result.

Increasing the power makes the laser more intense, while decreasing the speed gives the laser more time to interact with the material. Which adjustment is best depends on the material, your machine, and the appearance you're trying to achieve.

If your engraving is only slightly too light, start with a small adjustment to either power or speed, not both. Test the result, then make another small adjustment if needed.

How often should I run a test grid?

Any time something changes.

Running a test grid is recommended whenever you try a new material, switch suppliers, change laser settings, clean or maintain your machine, or start an important project where you want the best possible results.

For materials you use regularly, you may not need to test every single piece. However, spending a few minutes testing is almost always worthwhile when working with unfamiliar materials or expensive blanks.

Do different brands of slate need different settings?

Yes. Although slate is one of the most consistent engraving materials, different manufacturers and quarries can produce slate with different colors, textures, densities, and surface finishes.

These differences may be subtle, but they can affect contrast and engraving quality. If you're trying a new supplier or a different style of slate, run a quick test before engraving your final project. Recording those settings in your material library will make future projects much easier.

Where can I find laser engraving settings for my machine?

The best place to start is your laser manufacturer's official material library or recommended settings guide. These recommendations are designed for your specific machine and provide a much more reliable starting point than random settings found online. Once you've tested those settings on your own materials, make small adjustments as needed and record the results in your personal material library.

Final Thoughts

When you're first getting started with laser engraving, it's easy to believe that success comes from finding the perfect settings. The truth is, there isn't a universal set of numbers that works for every machine, material, or project.

The most successful laser engravers don't memorize hundreds of settings, they understand how power, speed, focus, and material all work together. They test their materials, make small adjustments, keep detailed notes, and learn from every project they complete.

As you gain experience, you'll spend less time searching for someone else's settings and more time confidently dialing in your own. Before long, you'll be able to look at a new material, run a quick test, and know exactly how to adjust your laser to get the results you're after.

Every successful engraving starts with a single test. Be patient, stay curious, and remember that each project is another step toward mastering your machine.

The best settings aren't the ones you copy. They're the ones you discover and can confidently reproduce.