3D Laser Engraving on Curved Surfaces with Dynamic Galvo + Blue Line Scanner

Traditional laser engraving works on flat surfaces. But what happens when your workpiece is curved, domed, recessed, or has complex 3D geometry? That's where FSL's 3-axis dynamic galvo technology changes everything.

3D subsurface glass engraving
3D subsurface crystal engraving with dynamic Z-axis focus control

What is 3-Axis Dynamic Galvo Engraving?

A standard 2D galvo moves the laser beam in X and Y using mirrors. A 3-axis dynamic galvo adds a third axis — Z-axis focus control — that dynamically adjusts the focal point in real time as the laser scans. This means the laser stays perfectly focused even as the surface height changes across the workpiece.

3D engraving on curved surface
Detailed 3D laser engraving

The Blue Line Scanner Advantage

To engrave on a 3D surface, the laser needs to know the exact shape of that surface. FSL's built-in Blue Laser Line Scanner solves this by scanning the workpiece with a structured blue laser line and building a precise 3D height map — automatically, in seconds.

The scanner captures the surface profile, and the engraving software uses that data to dynamically adjust the Z-axis galvo focus point-by-point during engraving. No manual measuring, no test runs, no guesswork.

3D surface scanning
Engraving on 3D object
3D engraving result

Real-World Applications

Curved Glass Engraving

Engrave on concave and convex glass surfaces — wine glasses, bowls, curved awards, and decorative glassware. The 3-axis galvo keeps the focal point locked to the curved surface for crisp, consistent marks.

Concave Curved Glass

Convex Curved Glass

Urn and Memorial Engraving

Personalize rounded urns and memorial items with detailed text and imagery. The scanner maps the curved surface and the galvo follows it precisely.

3D engraving detail
3D marking on curved object
Finished 3D engraving

Why 3-Axis Dynamic Galvo?

Feature2D Galvo3-Axis Dynamic Galvo
Flat surfacesYesYes
Curved surfacesNoYes
Variable height objectsNoYes
Subsurface glass engravingLimitedFull 3D
Auto surface mappingNoBlue Line Scanner

Get Started

Ready to engrave on 3D surfaces? Explore the 6D SynchroScan with 3-axis dynamic galvo, or add the Blue Laser Line Scanner to your existing system for automatic surface profiling. Contact our team for a demonstration.

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