Laser Engraving Speed Chart: Understanding Optimal Laser Speed Settings
The first thing to know about laser engraving speeds is that the right speed will depend heavily on two things: the acceleration of the laser engraver and the material you are working on. The general approach is to use faster speed settings with lower power to prevent over-burning. But a more sophisticated understanding of laser engraving speeds always helps, especially if you run a business and need to do batch production.
In many ways, understanding how your laser engraving speed and power settings affect your end product is essential, regardless of your laser-cutting goals.
What Does “Speed” Mean in Laser Engraving?
To understand laser engraver speeds, it is important to differentiate between “maximum speed” and “effective speed”. Some laser engraving machines claim speeds over 1,000 mm/s, but in most cases, effective engraving speeds typically range from 200 to 600 mm/s to maintain quality.
The maximum speed is the limit at which the engraver can engrave.
The effective speed of a laser engraving machine is the optimal speed at which the laser engraves to maintain quality.
Acceleration and mechanical stability are often more important than the maximum "advertised" speed of a laser engraver.
3 Main Factors That Limit Laser Engraving Speed
- Acceleration Settings: Acceleration is completely different from speed in laser engraving: it refers to how fast the machine can ramp up and slow down before changing direction at the edge of an image.
- Resolution (DPI / LPI): The higher the DPI setting, the lower the speed. That is because higher line densities require the head to process significantly more data per inch, forcing you to slow down.
- Rigidity: Heavy-duty, rigid industrial frames handle high speeds cleanly; cheap, lightweight frames shake and blur the engraving.
Laser Engraver Speed vs. Acceleration
There is a difference between laser engraving "speed" and "acceleration". Acceleration (measured in Gs) matters much more than top speed. If you are working on a small or intricate piece, a laser head rarely has enough physical runway to hit its top speed before it has to slow down and turn around.
Even if a laser engraving machine boasts a top speed of over 1,000 mm/s, running it that fast on a hobbyist frame can cause what is known as "whiplash" or machine flexing. This will ruin the definition of the image.
Common Laser Engraver Speed Ranges by Laser Type
Laser engraver speed differs depending on the type of laser engraver. Generally, fiber lasers have the fastest engraving speeds, CO2 lasers engrave at moderate speeds, and diode lasers are much slower.
1. Diode Lasers (5W–20W)
Diode laser engraving speeds are much slower, often running at 100–250 mm/s for engraving. Increasing the power can proportionally increase speed, but diode machines are often limited by the stiffness of the gantry. The heavy laser module sits directly on the moving gantry head. Higher speeds may lead to vibrations.
2. CO2 Lasers (40W–100W)
The average speed for the average CO2 laser engraver is about 300–600 mm/s. They are generally considered to be the medium-fast option. High-end CO2 machines with RF tubes or advanced servos can reach 600–700 mm/s or higher because they only move lightweight mirrors and lenses instead of the whole laser unit.
Some may even hit 1,200 mm/s but rarely run at that speed; for many CO2 laser hobbyists, 200–300 mm/s is considered the "sweet spot" where you maintain high definition without losing steps or causing excess mechanical wear.
CO2 laser machines, from compact desktop models like the Polar series to powerful workhorses like the Pronto series, are capable of engraving and cutting with accuracy and precision. Just so you know, making sure you have optimal settings for your project is only one part of the equation. Partner with OMTech and get the best products at ideal price points.
3. Fiber/Galvo Lasers
Fiber laser engravers have significantly higher speeds because the mirrors (galvo) are moving rather than a heavy gantry. A good fiber laser engraver can reach speeds of 1,500-6,000+ mm/s for industrial marking. They use internal oscillating mirrors to steer the beam instantly rather than moving a physical gantry.
Laser Engraver Speed and Power Chart by Laser Type
| Laser Type | Typical Power Range | Average Engraving Speed | High-End / Max Speed | Why Speed Differs | Best Use Cases |
| Diode Lasers | 5W–20W | 100–200 mm/s | Higher speeds are possible with more power, but are often limited mechanically | Uses a moving gantry system; lightweight but less rigid at high speed | Hobby: engraving, crafts, wood, light-duty personalization |
| CO2 Lasers | 40W–100W | 300–600 mm/s | 600–700+ mm/s on advanced RF tube or servo systems | More powerful beams and faster motion systems than diode machines | Wood, acrylic, signage, production engraving, school/business use |
| Fiber / Galvo Lasers | Commonly 20W–100W+ | Much faster than gantry systems | 6,000–12,000 mm/s for industrial marking | Uses fast-moving galvo mirrors instead of moving the entire laser head | Metal marking, serial numbers, jewelry, and industrial production |
What is High Speed Engraving? Gantry vs. Galvo Laser Engravers
What is high speed for a laser engraver depends on which type of laser engraver you are talking about. For standard hobbyist and desktop laser engravers (diode and CO2 gantry machines), "high speed" generally means anything above 400 to 500 mm/s (24,000+ mm/min). For industrial galvo lasers, high speed means several thousand mm/s because they use moving mirrors instead of a heavy moving gantry.
1. Gantry Lasers (Diode and CO2): Standard Engraving Speed, High Engraving Speed and Caveats
- For a diode laser engraver or a CO2 laser engraver, 100 to 300 mm/s is normal for everyday raster engraving and vector cutting. This is the standard speed range for diode and co2 lasers.
- High speed for a diode or laser engraver is about 500 to 800+ mm/s.This is the kind of speed you need when working with thin, delicate, or heat-sensitive materials to prevent scorching.
However, there is a very important caveat to note when it comes to high-speed laser engraving with diode and CO2 laser engravers. Most manufacturers strongly advise against running a gantry laser (ie., diode and CO2) at top speed: though they may be capable of reaching up to 1,000mm/s, these laser engravers usually have some mechanical limits, acceleration, and frame vibration (or "whiplash"), which means your lines may be wobbly, loss of detail, or there may be lost steps.
2. Galvo Lasers (Fiber and MOPA): Standard Engraving Speed, High Engraving Speed and Caveats
- For a fiber or MOPA fiber laser engraver, the standard speed is about 500 to 2,000 mm/s for marking metals or plastics.
- High speed would be between 3,000 and 10,000+ mm/s.
Galvo and fiber laser engravers engrave at a higher speed than gantry lasers. That is because of the galvo heads. The galvo heads steer the laser beam using microscopic digital mirrors instead of moving a physical motor-driven assembly across a bed. This allows them to operate on an entirely different speed tier than diodes and co2 lasers.
This advice is especially useful, especially if you are running a diode laser. Diode lasers are heavier and struggle with high-speed direction changes much more than light-headed CO2 laser tubes.
Key Insights on Laser Engraving Speed vs. Quality
Manufacturers often advertise laser engraving speeds based on long straight lines. On small, detailed graphics, the machine never actually hits these speeds because it spends most of its time accelerating and decelerating.
- For many CO2 hobbyists, 200–300 mm/s is considered the "sweet spot" where you maintain high definition without losing steps or causing excess mechanical wear.
- Power/Speed Ratio: A common rule of thumb is that doubling your speed requires roughly doubling your power to achieve the same engraving depth. It is non-linear.
- DPI and Time: Reducing your DPI (dots per inch) or LPI (lines per inch) is one of the most effective ways to speed up a job without actually changing the laser's travel speed.
Material-Specific Laser Engraver Settings For Different Materials
| Material | Laser Type | Recommended Speed | Power |
| Softwood (Pine/Cedar) | CO2 (40-60W) | 200–300 mm/s | 20–40% |
| Hardwood (Oak/Maple) | CO2 (40-60W) | 150–250 mm/s | 30–50% |
| Plywood/MDF | CO2 (100W) | 400 mm/s | Varies |
| Stainless Steel | Fiber Laser | 1,000+ mm/s | High |
Breaking Down Key Variables in Laser Engraving
Speed and power are the two most critical variables you must understand when operating your laser engraving machine. This will give you a fundamental command of the items you produce and your overall experience with the device.
A crucial first step is accessing a reputable laser cutting speed and power chart. This resource can guide you as you continue your laser cutting journey.
At first glance, a laser cutting speed chart may seem complex and difficult to understand. The good news is, this article can help you navigate the terminology and new information to gain more confidence with your laser-cutting machine.
Laser Engraving Speed
Laser speed is a critical aspect of a laser engraving speed and power chart. A laser beam works by melting away surface layers of materials to create your chosen design. When you guide a laser to move, it travels vertically on the Y-axis and horizontally on the X-axis to execute the pattern. When you place a piece of material on a laser cutter's workbed, the laser engraving speed setting will determine how quickly the laser beam moves on each axis and cuts the material. A faster speed equals a quicker processing time.
Learn more: Laser Engraver Mirror Alignment
However, simply calibrating your settings to the fastest speed for every project will only sometimes be beneficial. If you direct your laser to move too quickly, you risk skipping over critical components of your image or not cutting deep enough. Alternatively, if you decrease the speed too much, your laser will spend too much time in one place, which could burn your workpiece.
Laser Power
Laser power is another vital element in a laser engraving power and speed chart. CO2 laser cutters generate their lasers in a glass tube loaded with CO2 gas. As the device pumps high-voltage electricity through the tube, it interacts with the gas and produces light. The speed at which the laser emits the resulting energy is what determines the laser's power.
A laser's power is independent of its speed, although a perfectly balanced combination of the two is essential for optimal results. A laser with a higher power setting can forge deeper and darker cuts. Further, thicker materials will require more power than thinner ones. Also, if your power is too high, you could char your workpiece and create undesirable smoke.
Finding the Perfect OMTech Laser Engraving Speed and Power Settings
As you can see, properly adjusting your laser engraving speed and power settings is essential to achieving the perfect cuts for your projects. However, even after you've decided what your settings should be, there are a couple of final steps you should follow.
Learn more: OMTech laser settings for different types of materials
Run Tests on Different Types of Materials
Materials can be costly, so using a scrap piece to test how they will react to your settings is wise. Testing is essential if your workpiece is unique or if you only have a small amount. The minimal portion that you sacrifice will pay off in the long run. Even if you have a lot of engraving experience, you should always test on unfamiliar materials or materials that are oddly shaped or have uneven surfaces.
Different materials will require different laser engraving speeds and power calibrations. Even if you're using different types of the same materials, their respective properties could be vastly different, severely altering your final product.
For example, even though lambskin and cowhide are both types of leather, they need different laser engraving settings due to their differing qualities. Cowhide is more durable and can withstand high power, while sheepskin is too delicate for such a power setting. You will achieve very different results if you use the same speed and power settings for these two materials.
Adjust Speed and Power Levels
Finally, if your laser engraving tests do not come out exactly as you had hoped, take the time to readjust your speed and power levels and retest. Keep an eye on things like the edges of your cuts. Smooth edges mean your settings are set correctly, while rough or jagged edges mean you need to either increase power or decrease speed.
It's also important to note that how you prepare your materials will impact how they react to laser engraving.
For example, applying moisture to organic materials significantly affects their burn patterns. Dry leather can scorch or create unwanted fumes, so get it wet and supple before engraving. However, if you saturate leather too much, the lines you forge will not be crisp, and the design will look muddled.
Similarly, how you condition wood will drastically affect its withstands engraving. Wood that is not sanded, cleaned, and lightly finished will get smoke burns from the laser's heat.
Speed and Power Settings For a 150W CO2 Laser Engraver: Plywood, Acrylic and MDF
1. 150W CO2 laser 3mm plywood speed power settings
For a high-power 150W CO2 laser like the OMTech Pronto 75 150W CO2 Laser Cutter and Engraver, cutting 3mm plywood requires fast speeds (around 40mm/s to 60mm/s at 50% to 70% power in a single pass) to avoid over-burning or catching the wood on fire, though exact limits depend heavily on your air assist and the quality of the plywood glue core. However, there is some critical context and baseline guidance for dialing in these high-wattage cuts.
Recommended Starting Guidelines:
- Speed: 35 mm/s to 50 mm/s (approx. 2100–3000 mm/min)
- Power: 55% to 70% maximum power (do not run a 150W tube at 100% for thin wood unless testing, as excessive power creates heavy charring or risk of ignition)
- Passes: 1 pass (cleanly tuned)
- Air Assist: Mandatory and turned on high to clear soot and stop flare-ups
Key Tips For 150W CO2 Lasers for 3mm Plywood
- Keep in mind that the wattage is extremely high: In general, 150W is massive overkill for 3mm wood. That is because high-wattage glass tubes have a wider beam profile and larger spot size than 50W–80W tubes, meaning you cannot squeeze out ultra-fine detail as easily, and going too slow will instantly incinerate thin plywood.
- Watch out for material Inconsistencies: Big-box store plywood (like Lowe's or Home Depot) often has thick interior glue pockets or internal voids that block beams unpredictably. Laser-grade Baltic Birch cuts much more cleanly.
- Protect Your Tube: Avoid running cheap glass tubes at 100% power. Capping your max software power around 70% preserves the lifespan of a 150W tube.
2. 150W CO2 laser 3mm MDF: speed and power settings
For a high-power 150W CO2 laser, cutting 3mm MDF generally requires fast speeds and moderate-to-high power to avoid excessive burning or flare-ups. From personal experience, a safe starting baseline for a single clean pass is 30 to 50 mm/s (1800–3000 mm/min) at 50% to 70% power, paired with strong air assist.
Remember, 150W tubes can easily over-fire or char thin wood if run too slowly at 100% power; use the guidelines below to fine-tune your cut.
Recommended Starting Parameters
- Speed: 30 mm/s to 50 mm/s (approx. 1800–3000 mm/min)
- Power: 50% to 70% (tune lower to reduce charring, higher only if it fails to drop out)
- Passes: 1 pass (a 150W laser cuts 3mm material instantly; multiple passes usually add unnecessary soot)
- Air Assist: High pressure / maximum airflow (crucial to clear sticky MDF resins and prevent flare-ups)
Tips for Cutting MDF
- Watch the glue content: MDF uses heavy resins that create thick smoke and sticky residue. Clean your optics frequently.
- Avoid max power/slow speeds: Running a 150W tube at 90–100% power on 3mm material will cause heavy dark browning or flame flare-ups. Turn down the power percentage and speed up instead.
- Exhaust and Safety: MDF produces heavy, toxic-smelling smoke. Ensure your ventilation system is robust and rated for heavy production before running batch jobs.
3. 150W CO2 laser 3mm Acrylic: speed power settings
For 150W CO2 laser cutting 3mm (1/8") acrylic, it is generally better to use a fast speed at 35% to 55% power (around 25mm/s to 40mm/s) or lower power percentages, because a 150W tube is extremely powerful and too much heat will melt the acrylic.
Recommended Starting Points
- Option A (Clean, Fast Cut): Speed 35–40 mm/s, Power 40–50%
- Option B (Conservative / Slower): Speed 20–25 mm/s, Power 30–35%
Critical Tips For Cutting and Engraving with a 150W CO2 Laser Engraver
- Beware of High Power: A 150W tube driven at 80%–100% power on thin 3mm acrylic is way too hot. It will cause flaring, heavily melted/gummy edges, or flame-ups rather than a clean vaporized cut.
- Check Your Amperage/ma Meter: Never assume 50% in software equals 50% actual tube life; make sure your actual tube current stays within your safe maximum milliamp range.
- Cast vs. Extruded: Use cast acrylic whenever possible for clean, frosted-look edges and less gumming. Extruded acrylic tends to get stringy and gummy when hit with high-wattage lasers.
- Air Assist: Keep a steady, moderate air assist running to clear fumes and stop flare-ups, but avoid blasting it so high that it aggressively cools the cut line incorrectly.
- Do a Test Grid: Always run a small matrix test grid on a scrap piece of your exact acrylic sheet, as alignment, focal length, and lens cleanliness change real-world output.
3mm Plywood Laser Cutting Speed and Power Settings
| Laser Type | Speed | Power | Passes |
| CO2 (40W–50W, e.g. K40) | 10–25 mm/s (600–1,500 mm/min) | 70%–95% | 1 pass |
| Diode (5W–10W) | 200–900 mm/min | 85%–90% | 1 pass (20W+ diodes); 3–6 passes (5W–10W) to prevent excessive charring |
| Diode (20W–40W) | 800–1,000 mm/min | 90%–100% | 1 pass |
For 3mm plywood, it is ideal to go for a single pass at 10–25 mm/s (600–1500 mm/min) with 70–90% power for 40W–50W CO2 lasers, or multiple slower passes (200–300 mm/min at 80–90% power) for lower-power 5W–10W diode lasers.
General Tips for Laser Cutting 3mm Plywood
- Air Assist: Turn on air assist to sharply reduce flare-ups, edge charring, and soot buildup.
- Masking: Apply painter's tape or transfer tape to the top surface of the plywood to eliminate surface smoke stains and residue.
- Material Quality: Standard hardware store plywood contains heavy, inconsistent interior glue pockets that resist lasers. Users strongly advise using "laser-grade" Baltic birch plywood for clean cuts.
3 Tips For Speeding Up Your Laser Engraving Time.
The best way to speed up your laser engraving is usually to adjust the settings in your software like Lightburn. Consider these tips:
- Lower the DPI/LPI: Dropping your Lines Per Inch (LPI) slightly reduces the number of passes your laser head has to make, and this significantly cuts down how long the job takes without any (noticeable) loss in quality.
- Use offset fill: Instead of the traditional raster function (which moves left or right across the entire image blank space), use the "Offset Fill" function to make the laser trace the inward shapes continuously.
- Scan the offset adjustment: If your engraving lines look jagged or misaligned when you increase the speed, the best approach is to calibrate your machine's scanning offset. This way, you can compensate for the lag of the mechanical components.
Experience Stellar Engraving Quality With OMTech Laser Engraving Machines
Projects by OMTech CO2 Lasers
When you invest in an OMTech machine, you receive our stellar two-year warranty, exceptional customer service, and an invitation to join our fantastic laser community.
Do you have more questions about CO2 laser engraving? Visit our FAQ page or check out our blog posts. We look forward to joining you on your laser engraving adventure.
