Laser Master 3 (LM3) 20W vs Sculpfun SF-A9 40W

Technical comparison · Diode laser (405–460 nm)

In brief

Laser Master 3 (LM3) 20W and Sculpfun SF-A9 40W are two diode laser (405–460 nm) in a similar class. Choose Laser Master 3 (LM3) 20W if price matters more; choose Sculpfun SF-A9 40W if work area matters more.

Parameter
Identity
Launch year 2023 2024
Use tier F2 — Intermediate F2 — Intermediate
Price
Price (€) ~800–1050 € 1699 €
Universal specs
Dimensions (W×D×H) (cm) 58 × 55 × 15 cm 60.6 × 66.5 × 11 cm
Weight (kg) 6.2 kg
Work area (mm) 400 × 380 mm 400 × 400 mm
Power (W) 96 W 240 W
Voltage (V) 24 V 24 V
Maximum speed 20000 mm/min 36000 mm/min
Declared precision 0.01 mm 0.1 mm
Category specs
Short side area (mm) 380 mm 400 mm
Nominal laser power (W) 20 W 40 W
Laser source technology diode diode
Maximum travel speed (mm/s) 333.33 mm/s 600 mm/s
Maximum working speed (mm/s) 333.33 mm/s 600 mm/s
Cut depth per material 15mm Pine, 10mm Plywood, 8mm Black Acrylic 20 mm compensato, 6 mm acrilico
Laser wavelength (nm) 445 nm 450 nm
Minimum achievable resolution (µm) 12.5 µm 100 µm
Autofocus system module False False
Rotary module included False False
Passthrough structural slot True False
Control software interface lightburn, other proprietary, lightburn, other
Ecosystem
Cloud dependency No No
Software notes 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. Fully compatible with LightBurn and LaserGRBL via USB, Wi-Fi, or Bluetooth. It also supports the proprietary Sculpfun application.

The differences that matter

  • Price: Laser Master 3 (LM3) 20W 925 € vs Sculpfun SF-A9 40W 1699 € — Laser Master 3 (LM3) 20W wins (+84%)
  • Work area: Laser Master 3 (LM3) 20W 400×380 mm vs Sculpfun SF-A9 40W 400×400 mm — Sculpfun SF-A9 40W wins (+5%)

Which one to choose

Choose Laser Master 3 (LM3) 20W if…

you value price.

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

Choose Sculpfun SF-A9 40W if…

you value work area.

See the Sculpfun SF-A9 40W 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.