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Atomstack · Diode
AtomStack A20 Pro V2
Current Atomstack A20 Pro generation: 20W with F60 air assist ecosystem
All Atomstack models →Add to compare →
Last updated How we evaluate
Released April 2024
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.
Best for
What makes this machine stand out
Hardware and workflow features worth understanding before you buy : not just wattage on a label.
Open-frame : plan safety first
There is no factory enclosure: you wear OD-rated glasses, control smoke, and keep kids/pets away. You trade cabinet convenience for price and access : fine in a dedicated workshop, stressful in a living room without a plan.
LightBurn compatible
LightBurn support means advanced layers, camera tools, and workflows many makers outgrow the stock app with. Confirm your exact controller board before assuming full features : some machines need a paid license separately.
Our verdict
Ideal if you
AtomStack A20 Pro V2 20W is the versatile hobby / side-business SKU: clean engraving and light wood or leather cuts with comparable benchmarks on Maker Atlas.
Skip if you
Open-frame: glasses and exhaust required. Not a CO₂ replacement for clear acrylic or heavy thick-stock production.
Pros
- Everyday engrave and light cut mix: typical 5 mm basswood in several passes
- Open-frame: plan laser glasses, exhaust, and workspace rules from day one
- Software on the profile: trial your workflow on scrap before production
Cons
- Clear cast acrylic and thick production cutting still favor CO₂, not diode power alone
- Confirm optical wattage on the listing before you buy
What this machine is for
Current-gen Atomstack 20W for fine engraving and moderate cutting
Mid-range Atomstack diode for detailed work.
Laser spot size
~0.08 mm spot
Motion precision: 0.01 mm
Sample engrave job
~12–18 min
10 × 10 cm (4 × 4 in)
Sample cut job
~6–10 min
10 × 10 cm (4 × 4 in)
Reference benchmark: same job size on every machine so you can compare times fairly. Times are estimates for the reference job above; your design complexity and settings will change them.
Materials
- · Wood
- · Leather
- · Acrylic (dark)
Accessories & add-ons
Typical inclusions and add-ons for this profile : confirm your SKU.
- Optional
Enclosure / cabinet
Third-party enclosure improves smoke control and safety
- Recommended
Laser safety glasses
~450 nm diode: OD rated for your wavelength
- Recommended
Fire extinguisher
Editorial guidance : not a live parts list. See also: Ventilation setup · Safety basics
Practical notes
Beginner notes
This profile is the 20W SKU on AtomStack A20 Pro V2. Read the TL;DR and benchmarks above, then compare other power options via the chips before buying.
Pro tips
Use the benchmarks on this profile for quotes. Test on scrap before production.
Pro / technical specsRaw numbers for experienced users comparing machines.
- 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
Alternatives to the AtomStack A20 Pro V2
Machines in the same space, picked from our database by type, price, and score.
Atomstack · Diode · $349 – $499
Atomstack A40 Pro 20W is the 20W SKU on the Atomstack atomstack a40 pro line. Step up from A5 Pro with a stiffer frame and stronger cutting marketing (40W combined). Verify optical power on the listing: do not assume combined-watt marketing.
Atomstack · Diode · $249 – $349
Atomstack A5 Pro 10W is the 10W SKU on the Atomstack atomstack a5 pro line. One of the cheapest ways to try laser engraving. Verify optical power on the listing: do not assume combined-watt marketing.
xTool · Diode · $699 – $899
The 20W D1 Pro module is xTool's most popular open-frame head: mixed engraving and light cutting on the large D1 bed. Verify optical power on the listing; swap to 40W later if cut jobs dominate.