Product Overview

UNMEI: A revolutionary UV laser marker and engraver.

Having the latest state of the art RE4 control electronics/software 100% made in the USA. Now with AI 3D Vision allows detection of object outlines and auto-rotation saving you time and allowing automation.

Now with AI 3D Vision — Detect object outlines and auto-rotate for faster setup and seamless automation.

Free USA-Based Support Free USA-Made Software Free Projects

New Unique Patent Pending Features (2025)

Whole Lens Correction (WLC) Technology — Edge-to-edge, pixel-accurate workspace capture using an external overview camera with FSL’s 256-point WLC calibration (vs. standard 4-point homography).
FSL ZCam 3D Scan Technology — Built-in 0.1 mm accuracy depth scanning for click-to-autofocus anywhere in the field.
Coaxial Camera with WLC (Optional) — Through-the-lens system using a dichroic mirror, captures 196 stitched images with WLC for ~10× higher effective resolution than standard overview. Shows exactly what the laser sees.

Optics & Imaging

Dual Camera Option — Combine overview + coaxial views for precision alignment within ±2 µm.
Focus Anywhere — Camera-based focus measurement anywhere in the marking field.

3D & Advanced Marking

True 3-Axis Dynamic Galvo (Optional) — Advanced 3D surface marking with patent-pending “Saw” mode for defocus resilience.
Full 3D Curved Surface Engraving — Upload STL/OBJ and wrap designs on cylinders, cones, spheres (no rotary needed).
3D Subsurface Glass Crystal Engraving — AI converts 2D images to 3D OBJ for subsurface crystal engraving.

Laser Performance

355 nm Pulsed UV Laser — Up to 30× smaller spot size than CO₂; mark nearly any material.
Ultra-High Speed — Over 5,000 mm/s, typically 10–100× faster than gantry CO₂ lasers.
Superior Glass Engraving — 100× more detail with clean edges (5 W+).
Multi-Color Metal Marking — Deep black, red, green, white, and more on steel.

Material Capabilities

Marks plastics, metals, powder-coated metals, paper, cardboard, wood, aluminum oxide, silicon, and more.
No Surface Damage — Mark coated materials without harming the coating.
Fine Cutting — Micromachining up to 3 mm glass, 3 mm aluminum, 3 mm steel, 6 mm wood (clean edges; 10 W+ recommended).

Software & Automation

Browser-Based RE4 Software — Works on Windows, Mac, and Linux (demo).
AI Object Detection & Orientation — Cloud GPU processing for automatic recognition and alignment.

Accessories & Options

SYNCRO Rotary Attachment — True 4th-axis engraving on cylindrical objects with seamless rotation.
Power Options — 5 W, 10 W, 15 W, up to 30 W custom.

Design & Support

Footprint — 26" × 28" desktop size, full 12" × 12" marking area.
Technical Support — Phone and email assistance.

Weight & Dimensions	Engraving Area: 4" × 4" (100 × 100 mm) to 12" × 12" (300 × 300 mm) Machine Dimensions: 26" × 28" × 36" Weight: 85 lbs
Laser	Laser Classification: Class 3a if closed (visible red dot), Class 4 if open Laser Type: UV Pulsed Fiber Laser Laser Power: 5 W, 10 W, 15 W, 20 W
Power	Power Supply: AC 110 V native (220 V option available) Gross Power: < 1000 W
System	Operation Modes: Precision Raster, Vector, or Combination

Material	Vector	Raster
Aluminum
Nickel
Copper
Titanium
Rubber
Stone
Leather

Software	RetinaEngrave v4.0
Compatibility	PC, Mac & Linux
Browser Compatibility	Google Chrome (recommended), Safari, Firefox, Edge
File Import Options	JPG, PNG, BMP, TIFF, SVG, DXF, DWG
Minimum Screen Resolution	1024 × 768 pixels
Wireless Compatibility	802.11n

More information about RE4

Power Supply Tower
UV Laser Source
FSL ZCam 3D Scan Module
5" Touch Screen
Optics
Motorized Z Stage

FSL Coaxial Camera Benefits

Left: Standard overview, Right: Coaxial

Through-the-lens Clarity

Stitches 196 high-res through-lens images
Patent-pending DAC alignment for sub-pixel precision
~10× improvement (≈0.02 mm/px vs ≈0.2 mm/px)
“What-you-see-is-what-you-laser” accuracy

Left: Standard overview, Right: Coaxial

Mark Almost Any Material

UNMEI’s UV laser delivers clean, high-contrast results on a wide range of substrates.

Stainless Steel
Aluminum
Copper
Titanium
ABS / PC
Powder Coat
Glass
Ceramic
Silicon
Paper & Cardboard
Wood
Rubber

For details and techniques, see the Materials tab above.

3D Scan-Mark with FSL ZCam Autofocus

FSL ZCam 3D Scan Technology maps millions of depth points to create a live 3D workspace. It enables simultaneous engraving across multiple objects of varying heights and supports automatic click-to-autofocus anywhere in the field. Using the ZCam depth map, objects outside a typical field of view are split and marked with synchronized Z motion for consistent results.

The Perfect Accessories

SYNCRO Rotary

Engrave curved objects with synchronized rotation — up to 100× faster than gantry systems.

Use ZCam to auto-measure diameter; ideal for tumblers, glassware, and more.

Capable of surface and subsurface glass marking up to 4" deep. Increase wattage for higher speed and depth.

Fume extractors, specialty focus lenses, and more.

Explore SYNCRO Rotary

Dual Coaxial Camera with Liquid Lens

Varioptic liquid lens with a dichroic mirror and high-speed camera enables precise through-lens viewing, while a second camera provides a large overview. The coaxial camera places the laser spot repeatably within ~2 µm, delivering ultimate real-world-to-laser calibration.

Motorized Linear Extension Rail Options

Available in 500 mm and 1000 mm lengths; mounts to the bed and slides under the galvo. Two modes:

Repeat Job — Automatically make many copies in production.
Continuous Engraving — Scan a single galvo line (Y) while the rail synchronously shifts for up to 300 mm × 500 mm (12" × 20") continuous jobs with no line breaks.