ComMarker B6 20W Fiber Laser Engraver vs GWEIKE G2 Pro 30W Fiber Laser Engraver
Head-to-head spec comparison to help you pick the right fiber laser for your needs.
ComMarker
$1,599
GWEIKE
$1,799
Spec-by-Spec Comparison
| Spec | ComMarker B6 20W Fiber Laser Engraver | GWEIKE G2 Pro 30W Fiber Laser Engraver |
|---|---|---|
| Wattage | 20 W | 30 W |
| Laser Type | Q-Switched | Q-Switched |
| Laser Source | Raycus | Raycus |
| Work Area (W) | 150 mm | 150 mm |
| Work Area (H) | 150 mm | 150 mm |
| Galvo Speed | 8000 mm/s | 15000 mm/s |
| Color Marking | No | Yes |
| LightBurn | Yes | Yes |
| Autofocus | Yes | No |
| Weight | 3.5 kg | 6.5 kg |
| Software | LightBurn + EZCad | LightBurn + EZCad2 |
| Pulse Width | N/A (Q-Switched) | N/A (Q-Switched, 20–200kHz frequency range) |
| Price | $1,599 | $1,799 |
| Rating | 8.0/10 | 8.3/10 |
| 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
- The current title identifies an autofocus screen, a meaningful workflow distinction from manual-focus 20W alternatives
- 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
- Cataloged as Q-switched rather than MOPA; compare a currently available MOPA configuration when pulse-width control is required
- 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
- The current title does not confirm an included rotary; verify the exact bundle before planning cylindrical work
GWEIKE G2 Pro 30W Fiber Laser Engraver
Pros
- The current title carries a 15,000mm/s speed claim; compare real-job evidence and controller settings before inferring production throughput
- Wide 20–200kHz frequency range enables thermal oxidation color on stainless steel and titanium — GWEIKE documents '90+ colorful engravings' and DIY Life reviewer confirmed distinct greens and reds on stainless (Nov 2024)
- GWEIKE's LightBurn driver is the most actively maintained of any Chinese fiber laser brand — no COR file gymnastics, no galvo axis swap workarounds; direct native LightBurn galvo support out of box
- 150×150mm work area handles most knife blades, tumblers with rotary, and medium plaques without repositioning
- Active LightBurn settings ecosystem with documented community resources: a dedicated Etsy seller offers a 37-material LightBurn library specific to the G2 Pro 30W covering metals, plastics, and stone
Cons
- Color marking is thermal oxidation, not MOPA — results require experimentation per material and are less consistent and repeatable than a JPT MOPA machine; do not expect plug-and-play stainless color
- Focus height calibration is measured from lens center, not machine frame — GWEIKE's manual doesn't clarify this; every new owner mis-sets focus initially and must recalibrate by sound and burn quality (LightBurn forum, Feb 2026)
- Customer service is WhatsApp-only with inconsistent quality — best-lasercutter.com rates it 'a gamble'; not viable for production-critical environments with tight turnaround requirements
- The built-in fan is not a substitute for a verified fume-control plan appropriate to the marked material and workspace
- Native G-Laser software is frustrating and feature-poor — nearly all users switch immediately to LightBurn; do not evaluate the machine on G-Laser
Our Verdicts
ComMarker B6 20W Fiber Laser Engraver
The ComMarker B6 is the 20W option to compare when a 150mm field and autofocus matter more than MOPA pulse control. The verified Amazon offer was $1,599 on July 10, 2026. That price removes it from any under-$600 decision path. If color work is required, compare an available MOPA configuration instead of following the currently unavailable OMTech 30W exit.
GWEIKE G2 Pro 30W Fiber Laser Engraver
The GWEIKE G2 Pro is a fast Q-switched option with a 150mm field and an extended frequency range. The verified Amazon offer was $1,799 on July 10, 2026, so the old under-$900 comparison is invalid. Buyers focused on repeatable MOPA workflows should compare available true-MOPA configurations rather than the currently unavailable OMTech ASIN referenced in older copy.
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