Transferring laser settings between machines is a controlled experiment, not a copy-and-paste task. Use the source setting as a starting hypothesis, then compare module, spot, focus, motion system, firmware scaling, support, airflow, optics, usable area, and material conditions before releasing a new record.
Even machines that look identical can produce different marks because of alignment, optics, firmware, wear, material position, and environmental conditions.
List the Differences Before Running a Coupon
Create a side-by-side comparison before testing:
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Machine and controller model.
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Laser module and documented output class.
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Spot shape or optical configuration.
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Focus method and reference plane.
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Lens or protective-window condition.
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Motion system and acceleration behavior.
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Firmware power scale.
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Speed units.
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Air assist and extraction.
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Work surface and material support.
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Usable area and overscan clearance.
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Software and device profile.
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Material lot and thickness.
Shared nominal wattage does not erase these differences. A setting from one 10W or 20W machine is not automatically equivalent to the same percentage on another.
Do not transfer a source setting if the material, process goal, wavelength, laser type, module, or controller is materially different without a new qualification plan. LightBurn’s material-test documentation describes its test generator as a way to find settings for the specific laser and material combination, not as a universal library. LightBurn Material Test
Normalize Units and Power Conventions
Normalize the source and target records before comparing values.
Confirm:
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mm/s versus mm/min.
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Percent power versus controller command.
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Maximum power or S-Value.
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Pass count.
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Line interval or DPI.
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Frequency or pulse settings, where supported.
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Constant or variable power behavior.
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Air-assist state.
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Focus and Z reference.
Use:
Keep the original value beside the converted value. LightBurn warns that mixing speed units can make a job unexpectedly weak or excessively hot, and its Device Settings control how speed and distance units are displayed and converted. LightBurn speed and power guidance
Do not compare “50% power” across controllers without confirming what 100% means for each device. A software percentage is a command within that machine’s configured range, not a universal optical-energy measurement.
Choose a Safe Anchor Setting
Choose an established, low-risk process on a material both machines can process under documented conditions. Use a simple mark or test pattern on scrap rather than a borderline cut or finished product.
The anchor should include:
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Known material and thickness.
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Known source result.
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Documented speed units.
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Documented power convention.
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Verified focus.
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Controlled airflow.
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Simple geometry.
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Clear acceptance criteria.
Start near the anchor and bracket conservatively. Change one variable at a time while keeping material, artwork, focus, support, and airflow intent fixed.
Do not begin with the thickest material, smallest feature, or most valuable workpiece. A transferred setting must first demonstrate safe, controlled behavior on representative scrap.
Test the Same Material and Geometry on Both Machines
Use identical labeled geometry from the same material lot. If the sheet has grain, coating, or thickness variation, distribute specimens so one machine does not receive only the best section.
A paired coupon should contain:
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Repeated straight lines.
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A filled square.
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The smallest intended product text.
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An internal corner.
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A small circle or hole.
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A short cut-through path when cutting is part of the workflow.
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A control reference.
Match the process intent rather than forcing identical settings. If the source machine uses one focus method and the target uses another, establish the target’s correct focus reference before comparing marks.
Frame the test on both machines and verify clearance, origin, support, and airflow. Do not assume that identical artwork coordinates place the coupon identically on different beds.
Compare Mark Width, Depth, Contrast, and Cycle Time
Measure or record:
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Line width.
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Contrast.
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Engraving depth or coating removal.
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Kerf and taper.
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Back-face condition.
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Edge char or residue.
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Small-feature retention.
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Complete cycle time.
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Motion behavior and acceleration limits.
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Cleanup effort.
Compare the same feature under the same inspection light. A darker mark is not automatically equivalent if it is wider, deeper, more charred, or less durable.
Note whether either machine remains acceleration-limited on the test pattern. A short line, corner, or dense fill may not reach the commanded speed, so the actual energy delivered can differ from a long straight path.
LightBurn explains that the best power-and-speed combination depends heavily on the laser, material, and desired result. For cutting, it recommends material testing to find a condition that cuts reliably without excessive scorching; multiple passes may be preferable to continually increasing power in some cases. LightBurn speed and power guidance
Create a Machine-Specific Record After Transfer
Create a new record owned by the receiving machine. Retain:
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Receiving machine and controller.
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Module and optical configuration.
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Device profile and software version.
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Material and lot.
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Focus reference.
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Speed and units.
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Power and controller convention.
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Passes and interval.
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Airflow and support.
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Test geometry.
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Measurements.
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Accepted sample.
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Limitations and rejected conditions.
The source setting remains evidence, not a synchronized master value. Do not overwrite the original record or rename a copied file as though the process were already qualified.
Requalify after changing the module, lens, firmware, device profile, focus method, material, thickness, support, airflow, artwork, or finish.
The TwoTrees TS2 laser engraver is a product page to inspect when evaluating a machine workflow, but its listing does not prove that settings transfer to another model, controller, module, material, or software configuration. Verify the exact machine relationship and current documentation before purchase.
Stop and consult the exact manufacturer or software documentation when the target controller’s power scale is unclear, speed units conflict, the focus method differs, the material produces unexpected heat or fumes, or the target cannot reproduce the source geometry safely.
A Paired Coupon Across Two Similar Machines
Keep the paired comparison compact but demanding:
Use the same inspection method on both sets. If one machine passes only after changing multiple variables, preserve those changes instead of claiming a direct transfer.
The receiving machine’s accepted sample should become the new baseline for future work. Transfer is complete only when the target machine has its own documented result, not when the source file opens without errors.
