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Atomstack · Diode
AtomStack A20 Pro V2
Current Atomstack A20 Pro generation — 20W with F60 air assist ecosystem
Last updated How we evaluate
Released April 2024
What this machine is for
Current-gen Atomstack 20W for fine engraving and moderate cutting
Reference benchmark same job size on every machine so you can compare times fairly.
Laser spot size
~0.08 mm spot
Smaller spot = finer detail (frame motion is usually the same across tiers)
Motion precision: 0.01 mm
Sample engrave job
~12–18 min
Filled photo or logo on birch plywood
10 × 10 cm (4 × 4 in)
Sample cut job
~6–10 min
Simple square cut-out from 3 mm basswood
10 × 10 cm (4 × 4 in)
Times are estimates for the reference job above; your design complexity and settings will change them.
TL;DR
AtomStack A20 Pro V2 replaces the older A20 Pro with updated optics and bundle options. Mid-tier Atomstack between P1 and A40 — strong detail, not the highest watt class.
What this machine is for
Mid-range Atomstack diode for detailed work.
Best for
Materials
Engraves
- · Wood
- · Leather
- · Acrylic (dark)
Cuts
- · 5 mm basswood
Cannot do
- · 40W production cutting
- · CO₂ acrylic clarity
Pros
- ✓Current SKU from Atomstack
- ✓Rigid frame vs A5
- ✓Accessory ecosystem
Cons
- ✗Original A20 Pro discontinued
- ✗A40 exists for more power
- ✗Open frame
Beginner notes
Buy V2 new — avoid confusing with used original A20 Pro listings.
Pro tips
F60 air assist kit is the common upgrade path in reviews.
Pro / technical specs
Raw numbers for experienced users comparing machines.
- Laser spot size
- ~0.08 mm spot
- Max speed (spec)
- 300 mm/s
- Avg engrave speed
- 60–150 mm/s fill
- Avg cut speed
- 4–10 mm/s on 3 mm wood
- Motion precision
- 0.01 mm