Material Settings on the ComMarker B6 60W MOPA Fiber Laser

Getting crisp cuts, vibrant color marks, and deep engravings from your B6 60W MOPA Fiber Laser starts with dialing in the right parameters. From delicate jewelry chains to heavy‑duty welding, the B6’s adjustable pulse widths and high power output let you tackle a huge range of projects. This guide breaks down optimized settings for 13 common materials and applications—complete with pro tips to help you achieve perfect results every time.

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Why MOPA Matters

A Master Oscillator Power Amplifier (MOPA) fiber laser differs from a standard Q‑switched laser by letting you tweak the pulse duration (Q‑pulse width) and frequency independently. That means:

• Color Marking on stainless steel without coatings
• Fine Detail on reflective metals and plastics
• Deep Engraving on brass coins and heavy metals
• Minimal Heat‑Affected Zone for delicate substrates

Pair that with 60 W of laser power and you’ve got a workhorse that handles both micro‑precision and industrial tasks.

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Fiber Laser Engraver Key Parameters Explained

Before diving in, here’s what each setting does:

• Power (%): Laser output intensity (0–100%).
• Speed (mm/s): Head travel rate; slower speeds deepen cuts or marks.
• Frequency (kHz): Pulse repetition rate; higher frequencies smooth edges on metals.
• Q‑Pulse Width (ns): Pulse duration; longer pulses deposit more energy per pulse.
• Line Interval/Space (mm): Raster spacing for engraving; smaller values increase resolution.
• Passes: Number of times the laser repeats the same path for deeper cuts or darker marks.
• Hatch Mode / Image Mode: Controls fill patterns (e.g., cross‑hatch, 3D slice, threshold dithering).

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1. Fiber Laser Engraver Necklace Cutting (Metal Chains)

Machine: ComMarker B6 60W‑MOPA
Software: LightBurn

Setting	Value
Power	95%
Speed	700 mm/s
Frequency	35 kHz
Q‑Pulse Width	1 ns
Line Interval	0.01 mm
Passes	Continuous

Pro Tips

• Clamp Securely: Use fine‑tooth clamps or a rotary jig for round chains.
• Focus on the Link: Red‑dot preview helps you center on the chain link.
• Air Assist: Clears debris and cools the cut zone.

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2. Fiber Laser Engraver PCB Marking & Cleaning

Machine: ComMarker B6 60W‑MOPA
Software: LightBurn

Marking Pass

Setting	Value
Power	100%
Speed	1,000 mm/s
Frequency	40 kHz
Q‑Pulse Width	200 ns
Line Space	0.05 mm
Passes	4

Cleaning Pass

Setting	Value
Power	20%
Speed	1,500 mm/s
Frequency	100 kHz
Q‑Pulse Width	200 ns
Line Space	0.01 mm
Passes	2

Pro Tips

• Mask Sensitive Areas: Use Kapton tape to protect components.
• High Frequency for Cleaning: 100 kHz lifts oxidation without re‑etching.
• Inspect After Each Pass: Adjust if traces become too faint.

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3. Fiber Laser Engraving & Cutting for Brass Rings

Machine: ComMarker B6 60W‑MOPA
Software: LightBurn

Setting	Value
Power	100%
Speed	25 mm/s
Frequency	30 kHz
Q‑Pulse Width	400 ns
Passes	30

Pro Tips

• Rotary Attachment: Use the R5 for cylindrical rings.
• Test on Scrap: Brass alloys vary—adjust power if you see burrs.
• Coolant or Air: Gentle air assist prevents brass discoloration.

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4. Fiber Laser Engraving Color Marking on Stainless Steel

Machine: ComMarker B6 60W‑MOPA
Software: LightBurn
Field Lens: 150 mm

Color	Speed	Power	Interval	Q‑Pulse	Freq
Black	850	55%	0.03 mm	10 ns	233 kHz
Red	500	15%	0.003 mm	50 ns	300 kHz
Yellow	750	50%	0.005 mm	10 ns	200 kHz
Blue	950	50%	0.005 mm	10 ns	200 kHz
Skin	1,500	30%	0.05 mm	200 ns	20 kHz
White	750	30%	0.003 mm	10 ns	250 kHz

Pro Tips

• Oxide Layer: MOPA’s adjustable pulse width creates colored oxides on stainless.
• Consistent Overlap: Keep line interval consistent for uniform color.
• Test Coupons: Run a color test chart on scrap steel before final parts.

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5. Fiber Laser Deep Engraving on Brass Coins

Machine: ComMarker B6 60W‑MOPA
Software: EZCAD2

Setting	Value
Power	90%
Speed	1,000 mm/s
Frequency	30 kHz
Q‑Pulse Width	(MOPA Only)
Line Space	0.02 mm
Passes	157

Pro Tips

• Patience: 157 passes take time—plan for a multi‑hour run.
• Chip Removal: Pause every 50 passes to blow off brass dust.
• Hatch Mode: Use a tight hatch pattern for smooth walls.

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6. Fiber Laser 3D Relief Engraving on Brass Coins

Machine: ComMarker B6 60W‑MOPA
Software: LightBurn (3D Slice Mode)

Engraving

Setting	Value
Power	90%
Speed	2,000 mm/s
Frequency	100 kHz
Q‑Pulse Width	200 ns
Line Space	0.025 mm
Passes	512
Hatch Mode	45°

Cleanup

Setting	Value
Power	30%
Speed	6,000 mm/s
Frequency	75 kHz
Q‑Pulse Width	200 ns
Line Space	0.10 mm
Passes	1 per 10 passes

Pro Tips

• 3D Slice: LightBurn’s 3D slice turns grayscale into depth.
• Long Runs: A 6 hr 50 min job—monitor water chiller temperature.
• Final Polish: Light buffing with micro‑fiber removes residue and enhances shine.

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7. Fiber Laser Plastic ID Card Engraving

Machine: ComMarker B6 60W‑MOPA
Software: EZCAD2

Setting	Value
Power	40%
Speed	2,000 mm/s
Passes	1
Line Space	0.03 mm

Pro Tips

• PVC Warning: Avoid PVC—use ABS or PETG ID cards.
• Masking: Apply low‑tack tape to prevent melt marks.
• High Speed: 2,000 mm/s avoids warping thin plastic.

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8. Rust Removal on Coins

Machine: ComMarker B6 60W‑MOPA
Software: EZCAD2

Setting	Value
Power	90%
Speed	1,000 mm/s
Passes	Varies
Line Space	0.05 mm

Pro Tips

• Hatching Mode: Fills rusted areas without over‑etching base metal.
• Incremental Passes: Stop when rust lifts—don’t overshoot into clean metal.
• Brush Off: Use a soft brush to remove flakes between passes.

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9. Fiber Laser Welding (Battery Tabs & Aluminum)

Machine: ComMarker B6 60W‑MOPA
Software: EZCAD2

Setting	Value
Power	100%
Speed	25 mm/s
Frequency	100 kHz
Passes	1

Pro Tips

• Shielding Gas: Use argon for aluminum to prevent oxidation.
• Clamping: Secure parts firmly to avoid misalignment.
• Single Pass: High power, low speed for deep weld penetration.

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10. Fiber Laser Black Marking on Aluminum

Machine: ComMarker B6 60W‑MOPA
Software: EZCAD2

Setting	Value
Power	100%
Speed	500 mm/s
Frequency	30 kHz
Q‑Pulse Width	10 ns
Line Interval	0.01 mm

Pro Tips

• Anodized Aluminum: Best for crisp black marks.
• Moderate Speed: 500 mm/s balances contrast and throughput.
• No Masking Needed: MOPA forms oxide layer directly.

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11. Photo Engraving on Black Pendants

Machine: ComMarker B6 60W‑MOPA
Software: EZCAD2

Setting	Value
Power	30%
Speed	2,000 mm/s
Frequency	30 kHz
Q‑Pulse Width	200 ns
Line Space	0.045 mm
Passes	1

Pro Tips

• High Resolution: 0.045 mm line space captures fine photo details.
• Grayscale: Convert photos to black‑and‑white with high contrast.
• Single Pass: Minimizes blur on shiny surfaces.

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12. Fiber Laser Engraving Sci‑Fi Portraits on Name Cards

Machine: ComMarker B6 60W‑MOPA
Software: LightBurn

Setting	Value
Power	50%
Speed	2,000 mm/s
Frequency	30 kHz
Q‑Pulse Width	200 ns
Interval	0.05 mm
Image Mode	Threshold
Passes	1

Pro Tips

• Threshold Dithering: Creates bold, graphic portraits.
• Card Stock: Use heavy paper (300 gsm) for clean cuts.
• Single Pass: Keeps lines sharp.

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13. Black Marking on Knives

Machine: ComMarker B6 60W‑MOPA
Software: LightBurn

Setting	Value
Power	85%
Speed	200 mm/s
Frequency	30 kHz
Q‑Pulse Width	200 ns
Line Interval	0.01 mm
Passes	1

Pro Tips

• Clamp Blades: Secure knives flat to avoid beam drift.
• Mask Edges: Prevent accidental marking on the cutting edge.
• Safety: Wear cut‑resistant gloves when handling blades.

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Final Thoughts

With this comprehensive settings guide, you’re ready to unlock the full potential of your ComMarker B6 60W MOPA Fiber Laser. Remember:

1. Always Test on scrap material before final runs.
2. Fine‑Tune power and speed in small increments.
3. Maintain your optics and cooling system for consistent performance.

Need more help? Reach out to the ComMarker support team for one‑on‑one assistance, troubleshooting, and project tips. Now fire up LightBurn, load your favorite design, and let the B6 bring your ideas to life!