ComMarker B4 60W JPT MOPA Fiber Laser vs Monport 20W Fiber Laser Engraver
Head-to-head spec comparison to help you pick the right fiber laser for your needs.
ComMarker
$1099
Monport
$349
Spec-by-Spec Comparison
| Spec | ComMarker B4 60W JPT MOPA Fiber Laser | Monport 20W Fiber Laser Engraver |
|---|---|---|
| Wattage | 60 W | 20 W |
| Laser Type | MOPA | Q-Switched |
| Laser Source | JPT | Raycus |
| Work Area (W) | 175 mm | 110 mm |
| Work Area (H) | 175 mm | 110 mm |
| Galvo Speed | 10000 mm/s | 7000 mm/s |
| Color Marking | Yes | No |
| LightBurn | Yes | Yes |
| Autofocus | No | No |
| Weight | 5.5 kg | 3.2 kg |
| Software | LightBurn + EZCad2 (LightBurn requires COR file setup) | BSLcad + LightBurn (galvo license required separately) |
| Pulse Width | 2–500ns | N/A (Q-Switched) |
| Price | $1099 | $349 |
| Rating | 9.0/10 | 6.5/10 |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
ComMarker B4 60W JPT MOPA Fiber Laser
Pros
- JPT M7 MOPA source confirmed — wider frequency range (1–4,000kHz) and tighter pulse consistency than Raycus Q-switched alternatives at any price; the datasheet comes in the box
- 60W output at up to 10,000mm/s makes batch tumbler marking and production jewelry engraving run at business-viable throughput — no other LightBurn-compatible MOPA under $1,100 offers this combination
- LightBurn compatible via COR file — both LightBurn and EZCad2 workflows supported; JPT M7's full pulse-width parameter range is accessible from LightBurn's galvo interface once configured
- Rust cleaning at 60W is a documented bonus capability — removes surface oxide from steel without abrasives, useful as pre-treatment before color marking on weathered material
- Foot pedal input, job preview function, and fan that only runs during active engraving — the small-business production workflow details that distinguish a tool from a toy
Cons
- LightBurn setup requires loading a COR file and manually configuring galvo axis, Q-Pulse Width, and frequency settings — LightBurn forum (April 2026) shows new owners needing 30+ minutes before getting first correct results; not auto-detected
- No autofocus — manual Z-axis focus required for every workpiece height change; the B6 MOPA, ComMarker's current flagship, corrects this limitation
- B4 MOPA line is end-of-life inventory — ComMarker now promotes the B6 MOPA (autofocus, updated form factor, same 60W power); ASIN B0CGX9TBGQ remains on Amazon but community resources will increasingly reference the B6 going forward
- Color marking requires calibration per material batch — powder coat thickness and alloy composition vary even within the same tumbler brand, requiring fresh test grids for each new batch
- No enclosure — Class 4 open-beam 1064nm infrared; requires OD6+ eyewear at 60W and either ComMarker's Safety Enclosure Pro or a dedicated controlled workspace
Monport 20W Fiber Laser Engraver
Pros
- BSLcad bundled with LightBurn galvo support confirmed — no EZCad-only lock-in at $349; the Amazon listing explicitly says 'LightBurn Compatible'
- Raycus 20W source marks stainless steel, aluminum, brass, titanium, copper, and anodized aluminum consistently — the same source family used in machines twice the price
- Q-switched monochrome marks are deep and durable — serial numbers, logos, and ID marks survive heavy daily use without fading or rubbing off
- 110×110mm work area covers rings, dog tags, knife blade sections, and metal business cards without repositioning
- 3.2kg form factor is genuinely portable — moves between bench and jobsite without fixed infrastructure or dedicated workspace
Cons
- LightBurn setup on the BSLFiber controller is poorly documented — LightBurn forum (Jan 2025) rated Monport's galvo setup instructions 'horrible'; expect troubleshooting before first successful job
- 10,000mm/s galvo speed trails the GWEIKE G2's 15,000mm/s at $150 more — the speed gap is noticeable on high-infill designs and compounds significantly on volume work
- No color marking — Q-switched fixed pulse width cannot produce oxidation colors on stainless steel regardless of settings or software
- No autofocus — manual Z-axis height setup required for every material change or thickness variation; a friction point that dedicated color-marking workflows cannot absorb
- BSLcad community resources are nearly nonexistent — unlike GWEIKE or OMTech, no active forum threads, settings libraries, or YouTube tutorials specific to BSLcad workflows
Our Verdicts
ComMarker B4 60W JPT MOPA Fiber Laser
The ComMarker B4 60W MOPA earns the top rating because no other machine under $1,100 combines 60W JPT MOPA, LightBurn support, and a work area that handles tumblers. It is the benchmark for serious makers and small business operators. Two things to verify before buying: first, check whether ASIN B0CGX9TBGQ is in stock — the B4 line is end-of-life, and if both the B4 and B6 MOPA are available at similar prices, the B6's autofocus makes it the stronger long-term buy. Second, budget time for LightBurn setup — the COR file configuration takes an hour the first time. For experienced users who know what they are buying into, this remains the benchmark purchase under $1,100.
Monport 20W Fiber Laser Engraver
The Monport 20W is the honest answer when the budget ceiling is $400 and the use case is basic metal marking. LightBurn is supported (the 'EZCad-only' framing in older reviews is outdated), the Raycus source is legitimate, and the machine marks metals cleanly. The real tradeoff is everything that matters for efficient daily use: the GWEIKE G2 20W at $150 more runs 50% faster, has dramatically better documentation, and has an active community that has already solved the problems you will encounter. If $349 is a genuine limit, this gets the job done. If it is not, pay the extra $150 for the G2.