Atomstack Proxima Fiber vs ComMarker B6 20W
| Laser | ||
| Type | Fiber Laser | Fiber Laser |
| Wavelength | 1,064 nm | 1,064 nm |
| Optical Power | 20 W | 20 W |
| Performance | ||
| Work Area | 200 × 200 mm | 150 × 150 mm |
| Max Speed | 300,000 mm/min | 900,000 mm/min |
| Focus | Fixed | Autofocus |
| Features | ||
| Enclosure | Yes | No |
| Air Assist | No | No |
| Rotary Compatible | No | Yes |
| WiFi | No | No |
| Camera | No | No |
| Physical | ||
| Approx. Price | $1,799 | $1,599 |
| Release Year | 2023 | 2024 |
| Weight | 12 kg | 13.5 kg |
Pros & Cons
Atomstack Proxima Fiber
What we like
- 20W MOPA fiber for deep, precise metal marking
- Very fast galvo scanning head
- Enclosed for eye safety
- Competitive price for a fiber laser
- Excellent for jewelry and industrial marking
Watch out for
- Cannot process wood or acrylic
- Small 200×200mm work area
- No rotary support
- Steep learning curve for new users
ComMarker B6 20W
What we like
- One-touch autofocus with concealed lifting motor
- 15,000 mm/s SpeedMax™ galvo for ultra-fast marking
- Larger 150×150mm work area vs B4's 110×110mm
- Class 1 laser safety with optional enclosure
- LightBurn and EzCad2 compatible
Watch out for
- More expensive than B4 for same 20W power
- USB-only connectivity (no Wi-Fi)
- No built-in enclosure or camera
- Larger/heavier than B4 (13.5 kg vs 11 kg)
Compatible Materials
Atomstack Proxima Fiber
Metal EngravingAnodized AluminumGlassStoneRubber
ComMarker B6 20W
steelaluminumbrasscopperAnodized AluminumtitaniumgoldsilverLeathercoated metals
The ComMarker B6 20W costs $1,599 (11% less) than the Atomstack Proxima Fiber, which is priced at $1,799.
Both machines share the same 20W optical power rating.
The Atomstack Proxima Fiber offers a 44% larger work area (200 × 200 mm vs 150 × 150 mm).
The ComMarker B6 20W has a 67% higher maximum speed (900,000 mm/min vs 300,000 mm/min).
Feature-wise, Atomstack Proxima Fiber includes an enclosure, while ComMarker B6 20W does not; ComMarker B6 20W includes rotary attachment compatibility, while Atomstack Proxima Fiber does not.