Atomstack A70 Max vs Sculpfun S40 Max
Technical comparison · Diode laser (405–460 nm)
Two large-format diode lasers with almost the same bed. What decides: the A70 Max states more power and cutting thickness and costs about €225 more; the S40 Max has autofocus and pass-through.
| Parameter | ||
|---|---|---|
| Identity | ||
| Launch year | 2024 | 2025 |
| Use tier | F3 — Advanced | F3 — Advanced |
| Price | ||
| Price (€) | ~1100–1500 € | ~950–1200 € |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 105.6 × 116.8 × 23 cm | 115.4 × 111.3 × 24 cm |
| Weight (kg) | 15 kg | 15.2 kg |
| Work area (mm) | 850 × 800 mm | 830 × 800 mm |
| Power (W) | 360 W | 350 W |
| Voltage (V) | — | 24 V |
| Maximum speed | 400 mm/s | 36000 mm/min |
| Declared precision | 0.01 mm | 0.1 mm |
| Category specs | ||
| Work area (short side) (mm) | 800 mm | 800 mm |
| Rated power (W) | 70 W | 48 W |
| Source technology | Diode | Diode |
| Max travel speed (mm/s) | 400 mm/s | 600 mm/s |
| Max processing speed (mm/s) | 400 mm/s | 600 mm/s |
| Max cut depth per material | 25 mm (legno), 30 mm (acrilico) | 20mm compensato, 6mm acrilico scuro |
| Wavelength (nm) | 455 nm | 455 nm |
| Min resolution (µm) | 10 µm | 100 µm |
| Autofocus | No | Yes |
| Rotary included/compatible | No | No |
| Passthrough | No | Yes |
| Supported software | Proprietary, LightBurn, Other | LightBurn, Proprietary, Other |
| Frame | Open, optional enclosure | Open, optional enclosure |
| Air assist | — | Included |
| Fume extraction | Optional filter | Optional filter |
| 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, offering WiFi, USB connectivity, and offline control via the integrated TS1 touchscreen or proprietary app. |
The differences that matter
- Rated power (manufacturer's declared values): 70 W vs 48 W → the A70 Max is the machine meant for thick cuts.
- Cutting thickness: wood up to 25 mm and acrylic up to 30 mm vs plywood up to 20 mm and dark acrylic up to 6 mm → thick acrylic is out of reach for the S40 Max.
- Autofocus and pass-through: S40 Max only → on the A70 Max you set focus yourself at each material change and the piece must fit the bed.
Which one to choose
Choose A70 Max if…
Choose the A70 Max if you sometimes cut thick wood or acrylic, well beyond what the S40 Max states: those are maximum limits, not everyday work. The trade-off: focus is not automatic, there is no pass-through, and you pay about €225 more.
Choose S40 Max if…
Choose the S40 Max if you work mid-thickness sheets and change material often: autofocus sets the distance for you, and pass-through lets a piece longer than the bed slide through. You accept a lower rated power.
Where to buy
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