3D Fiber Laser Marking Machine for Curved and Stepped Parts – Dynamic Focus, 300x300mm Field, 6000mm/s
A benchtop 3D fiber laser marker whose focal plane follows the part: curved, stepped and uneven surfaces are marked in one clamping, across a 300x300mm field at 6000mm/s.
The software is MM3D: import the 3D model, unwrap the target surface to a flat layout, apply Z-map focal compensation, and store the result as a template. A model change is a template recall, not a re-programme. 2D software such as EZCAD has no surface unwrap, so a stepped part has to be marked in hand-adjusted segments.
The source is fiber, air-cooled: no chiller, no water loop to maintain, high electro-optical efficiency, and day-to-day upkeep is lens cleaning. The source carries a 2-year warranty (1 year for the machine, see section 9). The same frame can take a CO2 or UV source for non-metals and heat-sensitive parts.
The optical path and the SinoGalvo FL-3D-7210 head are fixed to a benchtop frame, resistant to vibration and repeatable in position: linearity 99.9%, repeatability better than 8 uRad, long-term drift under 0.5 mRad over 8 hours. Those three numbers, not the word ‘stable’, are the proof of batch consistency.
The CKMACHINE 3D laser engraving machine is a benchtop fiber marker built for parts a 2D machine cannot hold focus on. A 3D galvanometer – SinoGalvo FL-3D-7210 – moves the focal point along Z while it sweeps, so a stepped bracket, a curved housing or a part with a 20 mm height difference is marked across its whole surface in one clamping, without re-focusing or turning the workpiece over.
The field adjusts from 200×200 mm to 300×300 mm, and the working area can be built as 200×200, 300×300 or 400×400 mm. Marking speed is 6000 mm/s with 12,000 mm/s positioning and 600 cps writing; linearity is 99.9%, repeatability better than 8 uRad, and drift stays under 0.5 mRad across eight hours.
Power is 110 V 60 Hz or 220 V 50 Hz. The source is fiber – CO2 and UV are available on the same frame – and it is air-cooled. MM3D handles 3D model import, surface unwrap and Z-map focal compensation. Nothing touches the workpiece, so thin walls and finished faces come out undistorted.
| Parameter | Value |
| Printing Field (Adjustable) | 200*200mm ~ 300*300mm |
| Input Beam Size | 6mm ~ 7.5mm |
| X&Y Axes Mirrors Aperture Size | 10mm |
| Marking Speed | 6000mm/s |
| Positioning Speed | 12000mm/s |
| Writing Speed | 600cps |
| Step Response Time (1% of full scale) | 210us |
| Step Response Time (10% of full scale) | 710us |
| Tracking Error Time | ≤138us |
| Linearity | 99.9% |
| Repeatability (RMS) | <8uRad |
| Gain Error | <5mRad |
| Zero Offset | <5mRad |
| Long-term Drift Over 8 Hours | <0.5mRad |
| Scale Drift | <40PPM/°C |
| Zero Drift | <15uRad/C |
| Input Voltage | +24VDC |
| Rated Current | 4A |
| Interface Signal | XY2-100 |
| Machinery Scan Angle | +12.5° |
| Working Temperature | 0℃ ~ 45℃ |
Features
True 3D: a real Z axis, not a lift table
A separate Z-axis module sits ahead of the galvo, with a graduated column and a ±50 mm stroke (±100 mm optional). The focus tracks the surface along Z while marking, so stepped, curved and uneven parts are finished in one clamping. A 2D head on a lift table moves the whole head, and anything beyond the depth of focus goes soft.
A galvo chosen on data, not on price
SinoGalvo FL-3D-7210 3D head: linearity 99.9%, repeatability better than 8 uRad, long-term drift under 0.5 mRad over eight hours, marking at 6000 mm/s and positioning at 12,000 mm/s. Batch consistency is those numbers, not the word ‘stable’.
Rotary fixture standard, not an add-on
The grease unit sits under the marking head and doses on every cycle. Output is adjustable and even, it comes apart for cleaning without special tools, and very little grease is wasted.
Sealed Floating Head
ZIXU and tailstock, synchronised with the galvo: cylinders, rings and flange ODs are marked through a full 360 degrees without re-chucking. It is standard on this machine – and it is the first item deleted to reach a lower price.
MM3D: unwrap the surface first
The software is MM3D: import the 3D model, unwrap the target surface to a flat layout, apply Z-map focal compensation and save it as a template. A model change is a template recall, not a re-programme. 2D software has no surface unwrap, so a stepped part has to be marked in hand-focused segments.
The result on curved and non-planar faces
A bottle wall on one side, the inside of a mould cavity on the other – neither is flat, and neither is a height difference a lift table can solve. This is where 3D dynamic focusing has to prove itself: characters that keep their shape, line width that does not fatten, QR codes that still grade out.
The result on curved and non-planar faces
A bottle wall on one side, the inside of a mould cavity on the other – neither is flat, and neither is a height difference a lift table can solve. This is where 3D dynamic focusing has to prove itself: characters that keep their shape, line width that does not fatten, QR codes that still grade out.
| Item (datasheet wording) | Function |
| 3D GALVO | SinoGalvo FL-3D-7210; Z-axis dynamic focus, compensating the focal plane while sweeping |
| Rotation | 360-degree rotary axis for cylindrical and circumferential marking |
| Light Beam Path | Enclosed path from source to galvo |
| Screen | Layout preview and parameter recall |
| Mouse & Keyboard | 3D model import and path editing |
Material Compatibility
| Material | Fiber | CO2 / UV | Note |
| Stainless 304 / 316 | Yes | UV better | Serial numbers and QR on curved faces, clean edges |
| Carbon / alloy steel | Yes | – | Deep engraving possible; paint must be applied after, or masked |
| Aluminium | Yes | – | Anodised layer marks by colour change without breaking the oxide |
| Copper / brass | Yes (needs power) | UV steadier | Highly reflective; slow down or raise power at 6000 mm/s |
| Zinc / nickel plated | Yes | – | Marking breaks the coating; assess corrosion |
| Thin wall (<1 mm) | Yes | – | Non-contact, no impact distortion – the core advantage over pneumatic |
| Carbide / hardened | Yes | – | Laser ignores workpiece hardness, unlike a marking pin |
| ABS / PC / coatings | Burns | CO2 suits | Fume extraction required |
| Ceramic / glass | No | UV maybe | Sample test required |
Explore the Materials You Can Engrave with Our Fiber Laser
| Material Category | Fiber Laser |
| Metals | |
| Stainless Steel (304 / 316) | √ |
| Carbon Steel / Mild Steel | √ |
| Alloy Steel / Tool Steel (SKD11, H13) | √ |
| Hardened Steel (HRC > 50) | √ |
| Cast Iron / Ductile Iron | √ |
| Aluminum & Alloys | √ |
| Anodized Aluminum | √ |
| Copper & Brass | √ |
| Galvanized / Zinc-Coated Steel | √ |
| Titanium & Alloys | √ |
| Magnesium Alloy | √ |
| Precious Metals (Au / Ag / Pt) | √ |
| Cemented Carbide / Tungsten Steel | √ |
| Powder Metallurgy / Sintered Parts | √ |
| Magnetic Materials (NdFeB, Silicon Steel) | √ |
| Electroplated Parts (Cr / Ni / Zn) | √ |
| Painted & Powder-Coated Metal | √ |
| Metal Foil & Thin Sheet (< 0.5 mm) | √ |
| Medical Instruments & Implants (UDI) | √ |
| Hardware, Tools & Fasteners | √ |
| Plastics & Rubber | |
| ABS | ABS | √ |
| PC (Polycarbonate) | √ |
| ABS + PC Alloy | √ |
| PP / PE | √ |
| PVC | √ |
| PMMA / Acrylic (clear) | X |
| POM / PEEK | √ |
| PA / Glass-Fiber Reinforced Nylon | √ |
| TPU / TPE Elastomer | √ |
| Silicone Rubber | √ |
| Epoxy / Bakelite | √ |
| Laser-Markable Plastics (doped) | √ |
| Plastic Film & Label | √ |
| Rubber (NR / NBR / EPDM) | √ |
| Foam (EVA / EPE / Sponge) | X |
| Leather, Textile, Paper & Wood | |
| Genuine Leather | √ |
| PU / PVC Synthetic Leather | √ |
| Fabric & Textile | √ |
| Denim & Garment | √ |
| Non-Woven Fabric | √ |
| Paper & Cardboard | X |
| Corrugated Carton | X |
| Paper Label & Barcode | X |
| Wood & MDF | X |
| Bamboo & Cork | X |
| Glass, Ceramic & Stone | |
| Glass | X |
| Quartz Glass | X |
| Crystal & Gemstone (incl. 3D inner engraving) | X |
| Ceramic (Daily & Art Ware) | √ |
| Electronic Ceramics (Al₂O₃ / AlN / Piezo) | √ |
| Glazed Tile | X |
| Marble & Granite | √ |
| Concrete & Cement Products | X |
| Sapphire & Optical Crystal | X |
| Electronics & Semiconductor | |
| PCB / FPC | X |
| Silicon Wafer | X |
| IC Package & Semiconductor Device | X |
| Electronic Components | X |
| Cable & Wire | X |
| Keypad & Switch | √ |
| Battery Shell & Electrode | √ |
| Coatings & Others | |
| Paint & Coating (ablation marking) | √ |
| PTFE / Teflon Coating | X |
| Carbon Fiber & Composites | √ |
| Abrasives & Grinding Wheels | X |
| Food, Eggshell, Produce | X |
Marking Samples
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