Acmer S1 3.5W Laser Engraver for Wood & Metal vs AtomStack Swift Laser Engraver
The AtomStack Swift is the better buy for most people. It has a much larger 300 × 300 mm work area, a stronger 7W/12W laser option, and a 4.6 rating from 208 buyers versus 3.9 from 36. At the latest prices, the Swift's 7W version is $75.99 at AtomStack as of November 3, 2026, while the Acmer S1 is $129.00 at ACMER. Choose the Acmer S1 only if you want the smallest, lightest machine and a fine 0.04 mm spot for tiny detail work.
Today the AtomStack Swift Laser Engraver costs $53.01 less at its best price.
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Acmer S1 3.5W Laser Engraver for Wood & Metal
3.9$129.00at ACMERObserved Nov 2, 2026, 2:30 PM
Choose the Acmer S1 if you need a compact 1.5 kg engraver with a very fine 0.04 mm spot for small, high-detail pieces and a 130 × 130 mm area is enough.
Pros
- Very fine 0.04 mm spot for small, detailed engraving
- Light at 1.5 kg and small at 250 × 250 × 162 mm
- Ships pre-assembled, so it works out of the box
- Works with LightBurn and LaserGRBL
- Fast 10,000 mm/min travel speed
Cons
- Small 130 × 130 mm working area limits project size
What separates them
| Acmer S1 3.5W Laser Engraver for Wood & Metal | AtomStack Swift Laser Engraver | |
|---|---|---|
| Laser power | 3.5W (3500mW) diode | Switchable 7W or 12W diode |
| Working area | 130 × 130 mm | 300 × 300 mm |
| Spot size | 0.04 × 0.04 mm | 0.08 × 0.04 mm |
| Weight | 1.5 kg | 2.8 kg |
| Assembly | Pre-assembled, plug-and-play | Modular, about 5 minutes |
| Accessory support | No listed expansion modules | Extension kit, air assist, rotary roller, infrared module |
| Software | LightBurn, LaserGRBL | LightBurn, AtomStack Studio |
| Buyer rating | 3.9 out of 5 from 36 ratings | 4.6 out of 5 from 208 ratings |
Price history
- Acmer S1 3.5W Laser Engraver for Wood & Metal: lowest $129.00 on Nov 2 at ACMER.
- AtomStack Swift Laser Engraver: lowest $75.99 on Nov 2 at AtomStack.
Prices at every store
Acmer S1 3.5W Laser Engraver for Wood & Metal
- ACMERNew
In stock
$129.00Free shippingObserved Nov 2, 2026, 2:30 PM - WoodArtSupplyNew
In stock
$129.99Free shippingObserved Nov 2, 2026, 2:30 PM - Newegg.comNew
In stockSold by PurpleWhale
$139.00Free shippingObserved Nov 2, 2026, 2:30 PM - AmazonNew
Availability unknown
$129.99Free shippingObserved Nov 2, 2026, 2:30 PM
Also available at
- WalmartCheck price at Walmart
Specs compared
| Spec | Acmer S1 3.5W Laser Engraver for Wood & Metal | AtomStack Swift Laser Engraver |
|---|---|---|
| Laser power | 3500mW | switchable 7W / 12W |
| Working area | 130x130mm | 300 × 300 mm |
| size | S1-3.5W | — |
| Engraving size | 130*130mm（5.1*5.1 inch） | — |
| Product size | 250*250*162mm | — |
| Spot size | 0.04*0.04mm | — |
| Engraving speed | 10,000mm/min | — |
| Product weight | 1.5kg | — |
| Machine output | 36W | — |
| Wavelength | 455±5nm | — |
| Focal length |
Questions and answers
- Which is better for engraving large designs?
- The AtomStack Swift. Its 300 × 300 mm area is more than five times the Acmer S1's 130 × 130 mm, so most signs and panels fit without tiling.
- Which cuts thicker wood?
- The Swift. Its 12W module cuts noticeably thicker stock than the Acmer S1's 3.5W laser, which is best for thin veneers and light cuts.
- Is the Acmer S1 worth $129 when the Swift is $75.99?
- Only for very small, high-detail work. The Acmer's 0.04 mm spot is finer, but the Swift costs less at AtomStack as of November 3, 2026 and offers a bigger area and more power.
- Which is easier for a beginner?
- The Acmer S1 arrives pre-assembled, so it is ready fastest. The Swift takes about 5 minutes to assemble, but its 4.6 rating from 208 buyers suggests beginners get good results.
- Can I add a rotary roller to either?
- Only the AtomStack Swift lists a rotary roller, along with air assist and extension kits. The Acmer S1 has no listed expansion accessories.
- Which is more portable?
- The Acmer S1 at 1.5 kg and 250 × 250 × 162 mm is easier to move and store. The Swift weighs 2.8 kg and measures 460 × 420 × 110 mm.