Diode Lasers · head to head
Atomstack A20 Pro vs Ortur LM3
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| Spec | Atomstack A20 Pro V2 | Ortur Laser Master 3 |
|---|---|---|
| Optical power | 20W | 10W |
| Air assist | Pump and nozzle in the box | Optional add-on |
| Safety firmware | Standard tilt/flame protections | Notably thorough (tilt, motion, exposure) |
| Frame | Extrusion, quick assembly | Extrusion, refined over 3 generations |
| Cutting (3mm ply) | 3–4 passes typical | 5–7 passes typical |
| Street price | Low for 20W + air | Often the cheapest reputable entry |
Specs standardized from published manufacturer data and consistent owner reports — we don’t operate a lab.
The A20 Pro’s argument is arithmetic: twice the optical wattage plus included air assist at a price that hovers near the LM3’s. For anyone cutting — not just engraving — that halves pass counts on day one.
The LM3 remains the better-mannered machine: mature firmware, tight QC, and the safety feature set that made Ortur’s name. Engrave-first buyers and gift shoppers do well there; cut-first buyers should pay the small spread for the watts.
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