ComMarker B6 20W Fiber Laser Engraver vs GWEIKE G2 20W Fiber Laser Engraver
Head-to-head spec comparison to help you pick the right fiber laser for your needs.
ComMarker
$599
GWEIKE
$499
Verdict
It's a Tie
The ComMarker B6 20W Fiber Laser Engraver and GWEIKE G2 20W Fiber Laser Engraver are evenly matched — your choice depends on which features matter most to you.
Spec-by-Spec Comparison
| Spec | ComMarker B6 20W Fiber Laser Engraver | GWEIKE G2 20W Fiber Laser Engraver |
|---|---|---|
| Wattage | 20 W | 20 W |
| Laser Type | Q-Switched | Q-Switched |
| Laser Source | Raycus | Raycus |
| Work Area (W) | 150 mm | 110 mm |
| Work Area (H) | 150 mm | 110 mm |
| Galvo Speed | 8000 mm/s | 15000 mm/s |
| Color Marking | No | No |
| LightBurn | Yes | Yes |
| Autofocus | Yes | No |
| Weight | 3.5 kg | 2.5 kg |
| Software | LightBurn + EZCad | LightBurn + EZCad2 |
| Pulse Width | N/A (Q-Switched) | N/A (Q-Switched) |
| Price | $599 | $499 |
| Rating | 8.0/10 | 7.8/10 |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
ComMarker B6 20W Fiber Laser Engraver
Pros
- 150×150mm work area — 35% larger than the GWEIKE G2's 110mm field — fits tumblers on a rotary chuck and full knife blades without repositioning
- Autofocus eliminates manual Z-axis setup every session — the only 20W fiber laser with autofocus in the sub-$600 tier; every other machine in this range requires manual focus adjustment
- LightBurn confirmed working with EZCad also included — both workflows supported; buyers coming from diode lasers have immediate LightBurn continuity
- Built-in touchscreen display for settings and job status — removes the need to monitor a laptop during production runs
- 20W Raycus Q-switched marks steel, aluminum, brass, titanium, and copper consistently — ComMarker's production volume means quality control is verified across thousands of units
Cons
- Q-switched only — no color marking on stainless steel regardless of settings; for any color on tumblers or jewelry, the minimum step up is the OMTech 30W MOPA at $699
- No enclosure — Class 4 open-beam fiber laser; the invisible 1064nm infrared beam requires OD5+ eyewear and either a dedicated enclosure or a controlled workspace with no reflective surfaces
- Thinner community than GWEIKE — fewer Reddit threads and YouTube settings tutorials; troubleshooting depends more on ComMarker support channels than community knowledge
- Rotary not included — cylindrical tumbler marking requires a separate chuck or roller rotary attachment ($45–$65) on top of machine cost
GWEIKE G2 20W Fiber Laser Engraver
Pros
- LightBurn native at $499 — GWEIKE actively maintains their galvo driver; owners moving from diode lasers report zero learning curve on software setup
- 15,000mm/s galvo speed confirmed across all sources — 50% faster than the Monport 20W at $150 more; the throughput gap is measurable on any design with infill
- Raycus 20W source with documented reliability in knife-marking communities — a dedicated Italian cutlery review site (coltellimania.com, 14k views) independently validated the G2 for blade work
- 110×110mm work area covers rings, blade sections, small plaques, and coin marking without repositioning or compromising mark quality
- Active settings ecosystem: YouTube tutorials, LightBurn forum threads, and community settings libraries are indexed for the G2 specifically — problems you hit have been solved publicly
Cons
- Power-loss mid-job defect documented on LightBurn forum (June 2025) — mid-engraving power drop reported on some units; a workaround exists in settings but not every owner encounters it
- Customer service is WhatsApp-only with slow US response times — if something goes wrong, you are on your own until business hours in China; not viable for production-critical downtime
- Focus height calibration is poorly documented — community consensus is to calibrate by burn quality and sound rather than ruler measurement; GWEIKE's manual understates this complexity
- 110×110mm work area rules out tumblers and anything wider than a palm — if typical work pieces are over 100mm, step up to the ComMarker B6 (150mm field)
- No color marking — Q-switched laser cannot produce oxidation colors on stainless steel regardless of settings
Our Verdicts
ComMarker B6 20W Fiber Laser Engraver
The ComMarker B6 is the correct 20W pick when work area matters more than color capability. The 150mm field covers tumblers (with a rotary), full knife blades, and medium plaques that would require repositioning on a 110mm machine. Autofocus and the built-in display are genuine workflow upgrades over competitors at this price. If color marking is any part of your future roadmap, skip this machine — the B6 is Q-switched, and adding color capability later means buying a second machine. Buy the OMTech 30W MOPA at $699 instead. For monochrome marking on larger pieces with the most features in this tier, the B6 is the pick.
GWEIKE G2 20W Fiber Laser Engraver
The GWEIKE G2 20W is the best 20W entry-level fiber laser for a buyer who wants LightBurn from day one and values community documentation over price. At $499 it costs $150 more than the Monport 20W, and that premium buys a 50% galvo speed improvement, a driver that GWEIKE actively maintains, and a community that has already solved the problems you will encounter. The constraint is the 110mm work area: sufficient for jewelry, knife sections, and small items, but not for tumblers or anything wider. If work fits in 110mm and you want the smoothest entry into fiber, this is the pick. If work area matters, pay $100 more for the ComMarker B6 at 150mm.