Atomstack Glacier 120W Diode Laser Engraver vs Ortur Laser Master 3 (LM3) 20W
Technical comparison · Diode laser (405–460 nm)
Glacier 120W Diode Laser Engraver and Laser Master 3 (LM3) 20W are not direct competitors: different use classes (F4 vs F2). Laser Master 3 (LM3) 20W costs less (~€925) and is the entry-level choice; Glacier 120W Diode Laser Engraver offers more capability at a higher price (~€2199). Judge them by budget, not head-to-head.
| Parameter |
Glacier 120W Diode Laser Engraver
Atomstack
F4 · Semi-professional
|
Laser Master 3 (LM3) 20W
Ortur
F2 · Intermediate
|
|---|---|---|
| Identity | ||
| Launch year | 2025 | 2023 |
| Use tier | F4 — Semi-professional | F2 — Intermediate |
| Price | ||
| Price (€) | 2199 € | ~800–1050 € |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | — | 58 × 55 × 15 cm |
| Weight (kg) | 31 kg | — |
| Work area (mm) | 800 × 800 mm | 400 × 380 mm |
| Power (W) | — | 96 W |
| Voltage (V) | — | 24 V |
| Maximum speed | — | 20000 mm/min |
| Declared precision | — | 0.01 mm |
| Category specs | ||
| Work area (short side) (mm) | 800 mm | 380 mm |
| Rated power (W) | 120 W | 20 W |
| Source technology | Diode | Diode |
| Max travel speed (mm/s) | — | 333.33 mm/s |
| Max processing speed (mm/s) | — | 333.33 mm/s |
| Max cut depth per material | 40 mm legno massello, 30 mm acrilico (singolo passaggio) | 15mm Pine, 10mm Plywood, 8mm Black Acrylic |
| Wavelength (nm) | — | 445 nm |
| Min resolution (µm) | — | 12.5 µm |
| Autofocus | True | False |
| Rotary included/compatible | False | False |
| Passthrough | — | True |
| Supported software | Proprietary, LightBurn | LightBurn, Other |
| Ecosystem | ||
| Cloud dependency | No | No |
| Software notes | The system is fully compatible with LightBurn, the industry-standard software for advanced vector preparation and control, and AtomStack Studio, the manufacturer's proprietary solution. It also features a built-in touchscreen for offline control, allowing complex jobs to be started without the need for a constantly connected computer. | Fully compatible with LightBurn and LaserGRBL via USB or Wi-Fi. It also offers the proprietary Ortur Laser Explorer app for controlling and sending jobs directly from a smartphone. |
The differences that matter
- Price: Glacier 120W Diode Laser Engraver 2199 € vs Laser Master 3 (LM3) 20W 925 € — Laser Master 3 (LM3) 20W wins (+138%)
- Work area: Glacier 120W Diode Laser Engraver 800×800 mm vs Laser Master 3 (LM3) 20W 400×380 mm — Glacier 120W Diode Laser Engraver wins (+321%)
Which one to choose
Choose Glacier 120W Diode Laser Engraver if…
you value work area.
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