ComMarker B4 60W JPT MOPA Fiber Laser vs xTool F1 Ultra 20W Fiber Laser Engraver
Head-to-head spec comparison to help you pick the right fiber laser for your needs.
ComMarker
$1099
xTool
$1299
Spec-by-Spec Comparison
| Spec | ComMarker B4 60W JPT MOPA Fiber Laser | xTool F1 Ultra 20W Fiber Laser Engraver |
|---|---|---|
| Wattage | 60 W | 20 W |
| Laser Type | MOPA | Q-Switched |
| Laser Source | JPT | Raycus |
| Work Area (W) | 175 mm | 220 mm |
| Work Area (H) | 175 mm | 220 mm |
| Galvo Speed | 10000 mm/s | 10000 mm/s |
| Color Marking | Yes | No |
| LightBurn | Yes | Yes |
| Autofocus | No | Yes |
| Weight | 5.5 kg | 4.5 kg |
| Software | LightBurn + EZCad2 (LightBurn requires COR file setup) | xTool Creative Space + LightBurn |
| Pulse Width | 2–500ns | N/A (Q-Switched) |
| Price | $1099 | $1299 |
| Rating | 9.0/10 | 8.6/10 |
| 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
xTool F1 Ultra 20W Fiber Laser Engraver
Pros
- Best-in-class tumbler engraving results — hobbylasercutters.com called it 'the best result I ever got with tumblers, testing all types of lasers'; the two-pass method (diode removes coating, fiber polishes) with a chuck rotary produces showroom-quality marks
- 16MP built-in camera with AI auto-align — places jobs on multiple randomly-oriented pieces automatically in xTool XCS; a workflow advantage that competing machines requiring manual positioning cannot match
- 220×220mm base work area (expandable to 220×500mm with conveyor) — the largest effective work area of any portable fiber galvo in this tier; 400×400mm in earlier specs was an error
- xTool's US support and warranty service is the most responsive of any Chinese laser brand — English-speaking support with real turnaround times, not 24hr+ WhatsApp queues
- Fully enclosed with automatic safety shutoffs — safe to operate without OD5+ eyewear or a dedicated controlled workspace, unlike every open-frame competitor
Cons
- NOT a MOPA laser — the F1 Ultra is Q-switched fiber galvo; no controllable pulse width, no MOPA-quality vivid color on stainless; xTool explicitly reserves 'MOPA' for the F2 Ultra only
- LightBurn fill-engraving shift bug documented Dec 2024 — after a firmware update, fill layers shift 1cm+ mid-job in LightBurn; xTool XCS performs the same jobs correctly; advanced LightBurn users face workflow disruption
- Camera autofocus and AI auto-align are XCS-only — these signature features do not work in LightBurn; users who prefer LightBurn lose the core differentiating workflow features
- Autofocus calibration drifts over time — xTool support confirms autofocus can deviate over 0.5mm and requires periodic manual recalibration
- Fiber laser power reduction reports in xTool community — multiple threads document 'F1 Ultra fiber laser not firing' or 'drastically reduced power'; may indicate a reliability pattern worth tracking
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.
xTool F1 Ultra 20W Fiber Laser Engraver
The xTool F1 Ultra is the best-supported fiber laser in this price range for buyers who prioritize setup experience and safety over raw wattage or color marking. The enclosed design, 16MP camera, and xTool's responsive English-speaking support are genuinely differentiated. It is not a MOPA — color marking on stainless is limited to Q-switched thermal oxidation, not MOPA-grade vivid results. At $1,299, you're paying more than the ComMarker B4 60W MOPA ($1,099) for 20W vs 60W and no MOPA capability. The premium makes sense for buyers who want the smoothest possible onboarding and the safest enclosed workspace. It does not make sense for buyers optimizing for color marking throughput or raw wattage.