Side-by-side specs, settings, and decision guide. Both have community-tested settings for 37 shared materials.
Longer B1: $299 vs Atomstack A20 Pro: $459 — prices as of 2026, check retailer for current pricing.
Where to buy
Buy the Longer B1 — check current price & availability
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
Affiliate link — we may earn a small commission at no extra cost to you.
Pick the Longer B1 if you want: more cutting power (22W vs 20W).
Pick the Atomstack A20 Pro if you want: native LightBurn support (industry-standard).
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Buy Now →Which is better, the Longer B1 or Atomstack A20 Pro?
It depends on your use case. Longer B1 is 22W diode. Atomstack A20 Pro is 20W diode. See the decision guide and side-by-side specs above.
What materials can both the Longer B1 and Atomstack A20 Pro cut or engrave?
Both machines have community-tested settings for 37 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 Longer B1 compatible with LightBurn?
The Atomstack A20 Pro works natively with LightBurn. The Longer B1 uses . LightBurn compatibility may be possible via a community device profile but is not officially supported.
Is the Longer B1 (22W) much faster than the Atomstack A20 Pro (20W)?
Higher wattage typically means faster cutting and the ability to cut thicker material in fewer passes. The Longer B1 (22W) cuts thicker material in single passes and engraves at higher speeds than the Atomstack A20 Pro (20W). For raster engraving the difference is smaller because surface engraving is limited by mechanical scan speed.
Popular Comparisons
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.
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