Atomstack A70 Max Laser Cutter vs Ortur Laser Master 3 (LM3) 20W

Technical comparison · Diode laser (405–460 nm)

In brief

A70 Max Laser Cutter and Laser Master 3 (LM3) 20W are two diode laser (405–460 nm) in a similar class. Choose A70 Max Laser Cutter if work area matters more; choose Laser Master 3 (LM3) 20W if price matters more.

Parameter
Identity
Launch year 2024 2023
Use tier F3 — Advanced F2 — Intermediate
Price
Price (€) ~1100–1500 € ~800–1050 €
Universal specs
Dimensions (W×D×H) (cm) 105.6 × 116.8 × 23 cm 58 × 55 × 15 cm
Weight (kg) 15 kg
Work area (mm) 850 × 800 mm 400 × 380 mm
Power (W) 360 W 96 W
Voltage (V) 24 V
Maximum speed 400 mm/s 20000 mm/min
Declared precision 0.01 mm 0.01 mm
Category specs
Work area (short side) (mm) 800 mm 380 mm
Rated power (W) 70 W 20 W
Source technology Diode Diode
Max travel speed (mm/s) 400 mm/s 333.33 mm/s
Max processing speed (mm/s) 400 mm/s 333.33 mm/s
Max cut depth per material 25 mm (legno), 30 mm (acrilico) 15mm Pine, 10mm Plywood, 8mm Black Acrylic
Wavelength (nm) 455 nm 445 nm
Min resolution (µm) 10 µm 12.5 µm
Autofocus False False
Rotary included/compatible False False
Passthrough False True
Supported software Proprietary, LightBurn, Other LightBurn, Other
Ecosystem
Cloud dependency No No
Software notes The system offers excellent versatility in terms of software control, ensuring native compatibility with standard solutions in the maker industry. It fully supports LightBurn, the most popular professional application for laser cutting and engraving management, and LaserGRBL, an open-source alternative ideal for more straightforward operations. Additionally, the machine features wireless connectivity capabilities that allow file transmission and monitoring via a proprietary mobile application, optimizing the workshop workflow. The absence of restrictions tied to proprietary cloud ecosystems ensures complete offline operational continuity, protecting project privacy and ensuring that the machine remains fully functional regardless of local network conditions. 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

  • Work area: A70 Max Laser Cutter 850×800 mm vs Laser Master 3 (LM3) 20W 400×380 mm — A70 Max Laser Cutter wins (+347%)
  • Price: A70 Max Laser Cutter 1300 € vs Laser Master 3 (LM3) 20W 925 € — Laser Master 3 (LM3) 20W wins (+41%)

Which one to choose

Choose A70 Max Laser Cutter if…

you value work area.

See the A70 Max Laser Cutter sheet →

Choose Laser Master 3 (LM3) 20W if…

you value price.

See the Laser Master 3 (LM3) 20W sheet →

MakerSpecs is an independent atlas. We don't sell products: this comparison links to both sheets, where you'll find complete data and official links.