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Atomstack S20 Pro vs Atomstack A20 Pro — Which Should You Buy?

Side-by-side specs, settings, and decision guide. Both have community-tested settings for 27 shared materials.

Atomstack S20 Pro: $499 vs Atomstack A20 Pro: $459 — prices as of 2026, check retailer for current pricing.


Where to buy

Buy the Atomstack S20 Pro — check current price & availability

Buy Now →

Affiliate link — we may earn a small commission at no extra cost to you.

Where to buy

Buy the Atomstack A20 Pro — check current price & availability

Buy Now →

Affiliate link — we may earn a small commission at no extra cost to you.

Which one should you buy?

Pick the Atomstack A20 Pro if you want: native LightBurn support (industry-standard).

Atomstack S20 Pro

Price
$499
Power
20W
Laser Type
diode
Work Area
400×400mm
Buy Atomstack S20 Pro
Atomstack A20 Pro

Atomstack A20 Pro

Price
$459
Power
20W
Laser Type
diode
Software
LightBurn
Buy Atomstack A20 Pro
70 settings for Atomstack S20 Pro67 settings for Atomstack A20 Pro

Settings Comparison

Material · OperationAtomstack S20 ProAtomstack A20 Pro
3mm Baltic Birch Plywoodcut250 mm/min · 100% · 3× passes · air assist250 mm/min · 100% · 3× passes · air assist
3mm Basswood Plywoodcut300 mm/min · 100% · 2× passes · air assist300 mm/min · 90% · air assist
3mm Clear Acryliccut700 mm/min · 100% · 4× passes · air assist700 mm/min · 100% · 4× passes · air assist
3mm MDFcut250 mm/min · 100% · 3× passes · air assist200 mm/min · 100% · 2× passes · air assist
3mm Walnut Plywoodcut270 mm/min · 100% · 2× passes · air assist
Acrylic Feltcut4500 mm/min · 50% · air assist
Aldercut800 mm/min · 95–100% · 2× passes · air assist
Bamboo 3mmcut1500 mm/min · 85%1800 mm/min · 82% · 3× passes · air assist
Bamboo Cutting Boardcut700 mm/min · 90–95% · 2× passes · air assist700 mm/min · 90–95% · 2× passes · air assist
Bamboocut700 mm/min · 95–100% · 2× passes · air assist2000 mm/min · 90% · 2× passes · air assist
Basswoodcut1400 mm/min · 80–85% · 2× passes · air assist3000 mm/min · 80% · air assist
Cardboardcut800 mm/min · 80%800 mm/min · 50% · air assist
Cardstock 300gsmcut6000 mm/min · 35%
Cardstockcut3500 mm/min · 40%1500 mm/min · 35%
Cedarcut1000 mm/min · 70–75% · 2× passes · air assist
Cherrycut800 mm/min · 90–95% · 2× passes · air assist
Chipboard 2mmcut1000 mm/min · 88% · air assist3500 mm/min · 65% · 2× passes · air assist
Copy Paper 80gsmcut8000 mm/min · 25%
Cork 3mmcut800 mm/min · 45–50% · 2× passes · air assist5000 mm/min · 45% · air assist
Corkcut2500 mm/min · 60%2500 mm/min · 60%
Corrugated Cardboardcut4500 mm/min · 48% · 2× passes
Cotton Fabriccut500 mm/min · 75%2000 mm/min · 35–40% · 2× passes · air assist
Craft Felt 3mmcut700 mm/min · 80%
Denim Fabriccut3500 mm/min · 80%1500 mm/min · 40–45% · 2× passes · air assist
EVA Foam 3mmcut600 mm/min · 70%
EVA Foam 6mmcut4500 mm/min · 45%
Faux Leathercut2500 mm/min · 75%3500 mm/min · 58% · air assist
Foam Board 5mmcut5000 mm/min · 42% · 2× passes
Genuine Leather (Veg-Tan, ~3mm)cut2500 mm/min · 85–95% · 2× passes · air assist2500 mm/min · 85–95% · 2× passes · air assist
Genuine Leathercut400 mm/min · 100% · 2× passes · air assist800 mm/min · 45–50% · 2× passes · air assist
HTV Vinylcut9000 mm/min · 16%
Kraft Papercut1800 mm/min · 40%2500 mm/min · 22%
Leathercut1500 mm/min · 100% · 2× passes · air assist1500 mm/min · 100% · 2× passes · air assist
Maplecut1800 mm/min · 90–100% · 4× passes · air assist1800 mm/min · 90–100% · 4× passes · air assist
Mylar Stencil 7.5milcut7000 mm/min · 25%
Oakcut700 mm/min · 95–100% · 2× passes · air assist
Papercut2000 mm/min · 25%
Pinecut1000 mm/min · 80–85% · 2× passes · air assist
Plywoodcut500 mm/min · 90% · air assist2500 mm/min · 85% · 2× passes · air assist
Rubber Stamp Blankcut800 mm/min · 95–100% · 2× passes · air assist
Walnutcut1800 mm/min · 90–100% · 4× passes · air assist1800 mm/min · 90–100% · 4× passes · air assist
3mm Baltic Birch Plywoodengrave2000 mm/min · 40–45%2000 mm/min · 40–45%
3mm Basswood Plywoodengrave3500 mm/min · 55%3000 mm/min · 20%
3mm Clear Acrylic (Cast)engrave4500 mm/min
3mm Maple Plywoodengrave3200 mm/min
3mm MDFengrave2000 mm/min · 40–45%2000 mm/min · 40–45%
3mm Mirrored Acrylicengrave4200 mm/min
3mm Walnut Plywoodengrave3000 mm/min · 50%
Acrylic Feltengrave8000 mm/min · 20–25%
Alderengrave2800 mm/min · 63%
Anodized Aluminumengrave1500 mm/min · 65%4000 mm/min · 55%
Bamboo 3mmengrave3500 mm/min · 38%5500 mm/min · 30–35%
Bamboo Cutting Boardengrave2500 mm/min · 62%2500 mm/min · 60%
Bambooengrave2500 mm/min · 68%
Basswoodengrave5000 mm/min · 55%
Cardboardengrave2500 mm/min · 30–35%2500 mm/min · 20–25%
Cardstock 300gsmengrave8000 mm/min · 10–15%
Cardstockengrave4500 mm/min · 10–15%
Cedarengrave3500 mm/min · 48%
Ceramic Tileengrave1500 mm/min · 100%
Cherryengrave3000 mm/min · 60%
Chipboard 2mmengrave3000 mm/min · 35–40%8000 mm/min · 25–30%
Copy Paper 80gsmengrave8000 mm/min · 10–15%
Cork 3mmengrave3000 mm/min · 30%3000 mm/min · 30%
Corrugated Cardboardengrave8000 mm/min · 15–20%
Cotton Fabricengrave2000 mm/min · 30–35%7000 mm/min · 22%
Craft Felt 3mmengrave2000 mm/min · 30–35%
Denim Fabricengrave4000 mm/min · 35%5500 mm/min · 25%
EVA Foam 3mmengrave2000 mm/min · 25–30%
EVA Foam 6mmengrave8000 mm/min · 15–20%
Faux Leatherengrave4500 mm/min · 40%8000 mm/min · 20–25%
Foam Board 5mmengrave8000 mm/min · 15–20%
Genuine Leather (Veg-Tan, ~3mm)engrave6000 mm/min · 60–70% · air assist6000 mm/min · 60–70% · air assist
Genuine Leatherengrave2000 mm/min · 42%3000 mm/min · 30%
Glassengrave7000 mm/min · 60–70%7000 mm/min · 60–70%
HTV Vinylengrave8000 mm/min · 10–15%
Kraft Paperengrave5000 mm/min · 28%7500 mm/min · 10–15%
Leatherengrave4000 mm/min · 50%
Mapleengrave5000 mm/min · 65–75% · air assist5000 mm/min · 65–75% · air assist
Marble Tileengrave2200 mm/min · 85%
Mylar Stencil 7.5milengrave8000 mm/min · 10–15%
Oakengrave2500 mm/min · 70%
Paperengrave6000 mm/min · 10–15%
Pineengrave3500 mm/min · 55%
Plywoodengrave2000 mm/min · 35–40%
Rubber Stamp Blankengrave2800 mm/min · 82%
Rubber Stamp Materialengrave2000 mm/min · 55%
Slate (coaster)engrave5000 mm/min · 70–80%5000 mm/min · 70–80%
Slateengrave2500 mm/min · 72%4000 mm/min · 55%
Stainless Steelengrave2800 mm/min · 95%
Walnutengrave5000 mm/min · 65–75% · air assist5000 mm/min · 65–75% · air assist
All Atomstack S20 Pro settings →All Atomstack A20 Pro settings →

Ready to buy the Atomstack S20 Pro?

Buy Now →

Ready to buy the Atomstack A20 Pro?

Buy Now →

Frequently Asked Questions

Which is better, the Atomstack S20 Pro or Atomstack A20 Pro?

It depends on your use case. Atomstack S20 Pro is 20W diode with 400×400mm bed. Atomstack A20 Pro is 20W diode. See the decision guide and side-by-side specs above.

What materials can both the Atomstack S20 Pro and Atomstack A20 Pro cut or engrave?

Both machines have community-tested settings for 27 shared materials. The settings table above lists every material with side-by-side speed, power, passes, and air assist values for direct comparison.

Is the Atomstack A20 Pro or Atomstack S20 Pro compatible with LightBurn?

The Atomstack A20 Pro works natively with LightBurn. The Atomstack S20 Pro uses . LightBurn compatibility may be possible via a community device profile but is not officially supported.

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Settings are community-contributed and may not reflect your exact machine configuration or material batch. Always test on scrap first. Some links are affiliate links — we may earn a small commission at no extra cost to you.

What Makers Say

★★★★★5.0· 6 reviews
View all on Etsy →
★★★★★

"Used it with a Glowforge — engraved beautifully with no changes. I will be purchasing more digital downloads from this shop."

Anna

★★★★★

"I was struggling with lining up my NFC business cards. I was able to not only line them up much better but also do multiple cards at once — making that job so much easier."

Camp

★★★★★

"Excellent quality and design. Cut clean and neat!"

LYNN

★★★★★

"Great jigs. Appreciate the time saved not having to build this from scratch!"

Bruce

★★★★★

"Excellent quality. Item as described. Expectations exceeded."

Michael

★★★★★

"This template made my slate coasters so much easier. 4×4 coasters from Michaels drop in easily and are easy to remove. Def worth it."

chris

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