The xTool F2 Ultra UV Laser is one of the most advanced compact UV laser engravers available today.
With a 5W true UV laser (355nm), ultra-high precision, blazing galvo speeds, and support for 3D crystal engraving, it’s engineered for professionals who need micro-detail accuracy without sacrificing speed or versatility.
Table of Contents
This guide breaks down everything you need to know, including supported materials, UV advantages, accessories, maintenance, and how it compares to xTool’s other machines.
What is the xTool F2 Ultra UV Laser?
The xTool F2 Ultra UV laser engraver makes detailed 3D engraving inside glass and crystal straightforward and reliable.
It’s built to handle more than just internal engraving, delivering clean results for surface engraving, embossing, cutting, and rotary work. Ideal for custom wine bottles, crystal awards, and personalized glass gifts.
Works with More Materials Than Most
Powered by a 5W UV laser, this machine handles a wide range of materials, including those that are usually difficult to process.
It works especially well with transparent and heat-sensitive materials like crystal, glass, acrylic, ceramics, and plastics, giving you more flexibility for creative and commercial projects.
High Precision Without Burn Marks
With an ultra-fine spot size under 10μm, the F2 Ultra achieves extremely detailed engraving that goes beyond typical CO2 results. Its UV “cold light” technology prevents charring, yellowing, or burn marks, so you get clean edges without extra finishing steps.
Smart, Efficient Workflow
Dual 48MP cameras help with fast autofocus and accurate alignment, reducing setup time. The software can convert 2D images into 3D engraving paths, making it easier for beginners to create complex designs. With speeds up to 15,000 mm/s, it’s well suited for batch production and high-volume jobs.
Compact, Enclosed, and Expandable
The fully enclosed design makes it safe and practical for small workspaces or live customization setups. It also supports add-ons like a rotary attachment for curved objects and a conveyor system for continuous production, giving you room to scale as your needs grow.
Key Features of the xTool F2 Ultra UV
5W UV Laser (355nm)
This UV laser produces 0.02–0.03mm micro-precision engraving, perfect for:
- 3D Crystal engraving
- Custom glassware
- Jewelry patterns
- Micro text
- Electronics
- PCB marking
- Barcodes & QR codes
Check Amazon Price Below
- Master of Glass Engraver: xTool F2 Ultra UV laser engraver machine delivers the simplest solution for 3D engraving inside glass and crystal with flawless results. This versatile UV laser engraver excels at surface engraving, embossing, cutting, and rotary engraving with premium results. Perfect for creating custom wine bottles, 3D crystal trophies, and personalized glass gifts for any occasion
Ultra-Fast Galvo Engraving – Up to 15,000 mm/s
Industrial-grade speed lets you batch engrave products quickly and consistently.
Autofocus + LiDAR Ranging
The F2 Ultra UV detects material height automatically, eliminating manual focus.
Dual 48MP Cameras
Accurate placement, live preview, and extremely precise positioning.
3D Crystal Engraving
One of the biggest advantages — UV can engrave inside glass cubes, plaques, crystal awards, and more.
Compact, Portable & Fully Enclosed
Great for:
- Studios
- Jewelry workshops
- Mobile engraving booths
- Retail personalization setups
- Events & craft fairs
Enhanced Safety
- Class 4 Laser Engraver
- Enclosed UV shielding
- Emergency stop (Class 4)
- Flame-retardant materials
- Compatible with air purification systems
What’s Included in the xTool F2 Ultra UV 3D Engraving Pack?
This pack enables accurate, pre-calibrated inner glass engraving:
- 1 × Inner engraving lens
- 1 × Riser
- 1 × K9 glass block
- 3 × calibration cards
Check Amazon Price Below
- Master of Glass Engraver: xTool F2 Ultra UV laser engraver machine delivers the simplest solution for 3D engraving inside glass and crystal with flawless results. This versatile UV laser engraver excels at surface engraving, embossing, cutting, and rotary engraving with premium results. Perfect for creating custom wine bottles, 3D crystal trophies, and personalized glass gifts for any occasion
Important:
The F2 Ultra UV lenses are NOT compatible with the F2 Ultra (fiber/diode).
They are different machines with different light sources and interfaces.
xTool F2 Ultra UV Supported Materials & Applications
Material Compatibility Chart
Engraving
Material | F2 Ultra UV Performance |
|---|---|
Glass (Surface) | Excellent |
Crystal (Inner 3D Engraving) | Excellent |
Acrylic (no melting) | Excellent |
Plastics (ABS, PP, PET, etc.) | Excellent |
Wood | Clean, no burn |
Leather | No burnt edges |
Metals | Great for marking |
Ceramics | Excellent |
Stone | Good |
Embossing
- Glass
- Acrylic
- Wood
- Silicone
- Ceramics
(Metal embossing not supported)
xTool F2 Ultra UV Supported Accessories
- RA3 & RA2 Pro Rotary
The xTool RA3 rotary attachment uses a magnetic quick-swap system to switch between chuck, roller, sphere, and ring modules in seconds, making setup faster and more efficient.
It features smart automation like 3D preview, auto-focus, and LiDAR-based alignment for accurate results. Designed for versatility, it supports full-wrap engraving on curved objects, handles larger items with a 130mm (5.12″) chuck, and improves batch production.
Tool-free assembly and precision features, like easy ring angle adjustment, make it ideal for detailed and professional engraving work.
- Auto Streamline™ Conveyor
- Auto Streamline, Your Wild Production: F2 Ultra Conveyor can effortlessly handle large quantities of production at times when large orders are in a rush.
The F2 Ultra UV conveyor is designed for high-volume production, allowing you to process large batches quickly and efficiently. It ensures precise engraving with automatic shape recognition and accurate placement through software integration.
With a 220 × 550 mm (8.66 x 21.65″) work area, it supports both large designs and multiple items at once. Built from durable yet lightweight aluminum, it can handle up to 10 kg (22 lbs) while remaining easy to move and set up. Added stabilization features help keep materials securely positioned for consistent results.
- Pedal / Button Switch
- Boost batch engraving efficiency: The F1 Pedal Switch lets you work uninterrupted, boosting creativity with seamless workflow.
The Pedal Switch improves workflow by enabling hands-free operation, letting you work continuously with less fatigue. It helps maintain precision during adjustments and positioning, while its lightweight aluminum design ensures durability and ease of use.
- SafetyPro™ AP2 purifier
- Breathe safer with a 6-layer filtration system that removes 99.99% of dust and odors. Weighing up to 20 lbs, it ensures maximum purification for healthy breathing during laser processing. Perfect for xTool laser engravers and other laser engraving machines
This smoke purifier uses a 6-layer filtration system to remove up to 99.99% of dust, odors, and harmful particles, creating a safer workspace during laser use. Its cyclone technology extends filter life up to 10× and captures most large particles before they reach the main filters.
Designed for efficiency, it features auto-sync with the xTool F2 Ultra UV Laser, quiet operation, and real-time filter monitoring. Durable and easy to maintain.
- SafetyPro™ IF2 inline fan
- Unmatched Smoke Extraction Efficiency: The xTool SafetyPro IF2 2.0 is designed for rapid and efficient smoke removal, featuring two ultra-speed 14,000 RPM fans that generate an airflow of 135 CFM. Its equal-diameter duct design produces up to 1300 Pa of pressure, ensuring efficient smoke extraction.
The xTool SafetyPro IF2 2.0 delivers powerful smoke extraction with dual high-speed fans and strong airflow for efficient fume removal. Its compact design uses a smart motor to provide high suction in a small size.
It features auto-sync control for hands-free operation, adjusting airflow based on materials. Easy to maintain with a washable design and reduced noise.
Why the xTool F2 Ultra UV Is The Best Laser For Glass Engraving (Surface + 3D)?
Glass engraving is one of the most difficult tasks for laser machines—especially if you want clean, crisp, non-chipped results or true 3D inner glass engraving. Most CO₂ and diode lasers can only scratch or frost the surface, often leaving cloudy finishes or cracked edges.
The xTool F2 Ultra UV, however, is engineered specifically for precision optical work. Its 355 nm ultraviolet wavelength, industrial-grade galvo system, and advanced depth-control technology make it the most capable desktop laser for both surface and internal 3D glass engraving.
Check Amazon Price Below
- Master of Glass Engraver: xTool F2 Ultra UV laser engraver machine delivers the simplest solution for 3D engraving inside glass and crystal with flawless results. This versatile UV laser engraver excels at surface engraving, embossing, cutting, and rotary engraving with premium results. Perfect for creating custom wine bottles, 3D crystal trophies, and personalized glass gifts for any occasion
Here’s why it’s better than every other laser in its class.
UV Wavelength (355 nm) Is Perfect for Transparent Materials
UV lasers behave very differently from CO₂ or diode lasers:
CO₂ laser (10,600 nm):
- Mostly absorbed by the surface of glass
- Causes surface flaking, chips, and cracks
- Cannot engrave inside glass
Diode laser (450 nm):
- Reflects off glass
- Requires coatings or hacks
- Not suitable for inner engraving
xTool F2 Ultra UV (355 nm):
- Passes through glass and focuses energy inside the material
- Produces ultra-fine micro-fracture points
- Allows beautiful, floating 3D internal engravings
The UV wavelength is the key that makes the F2 Ultra UV uniquely capable for crystal and glass work.
How 3D Crystal Engraving Works with the xTool F2 Ultra UV (Step-by-Step)
One of the biggest advantages of the F2 Ultra UV is that inner engraving does not require manual focusing.
Here’s the workflow:
1. Install the Inner Engraving Lens
The machine comes with a dedicated internal engraving lens that must be swapped before beginning.
2. Add the Inner Engraving Riser
This raises your glass block to the correct operating height.
3. Place the Crystal on the Platform
No need for additional fixtures for standard cubes—just ensure the block is clean and dust-free.
4. Enter Crystal Dimensions in xTool Studio
You simply input:
- Width
- Height
- Depth
- Placement
The system calculates focal points automatically.
5. Import a 2D or 3D Model
Supported formats include:
- 2D: SVG, PNG, JPG, BMP
- 3D: STL, OBJ, AMF, PLY, GLB, 3MF
The machine can engrave floating 2D images or full 3D internal models.
6. Start the Engraving
The F2 Ultra UV fires its laser inside the crystal, creating micro-points throughout the object to form the final 3D design.
Tips for the Best 3D Crystal Engraving Results
1. Use K9 Crystal
K9 crystal is best option for 3D crystal engraving because it’s extremely clear, consistent, and easy to work with.
- High clarity: It has very low impurities, so laser-engraved points appear sharp and bright inside the crystal.
- Uniform structure: The material is consistent throughout, which helps create precise, clean 3D images without distortion.
- Bubble-free finish: Fewer internal flaws mean better light refraction and a more detailed final result.
- Cost-effective: It offers near-optical quality at a lower price than premium crystals.
In short, K9 crystal gives you crisp, detailed 3D engravings with reliable results.
2. Degrease and dust the crystal before engraving
Smudges cause haze inside the engraving.
3. Reduce model density for small blocks
Overly dense points can make engravings look cloudy.
4. Avoid engraving near edges
Leave at least 3–5 mm margin inside the glass to prevent chipping.
5. Use xTool’s calibration cards
These help ensure depth accuracy when switching between inner and surface modes.
xTool F2 Ultra UV Maintenance Tips (Recommended)
To keep your UV laser performing at its peak:
1. Clean the field lens and mirrors weekly
Use absolute ethanol + lint-free wipes.
Never touch optics directly.
2. Keep the fan and air path clean
UV systems create fine debris — airflow is critical.
3. Run the machine at least once per month
Prevents moisture buildup internally.
4. Do not mix lenses between machines
UV lenses ≠ Fiber/diode lenses.
5. Use correct glass types
- ✔ K9 crystal
- ✖ Tempered
- ✖ Laminated
- ✖ Tinted
Final Verdict: Is the xTool F2 Ultra Worth It?
Yes — if you work with glass, crystal, plastics, jewelry, electronics, or detailed custom work, the xTool F2 Ultra is one of the best UV laser engravers available.
It offers unmatched precision, business-friendly speed, and safe, clean engraving that other laser types simply cannot replicate.
It’s currently one of the most capable desktop systems for true internal 3D glass engraving.
You get:
- Ultra-fine 355 nm UV precision
- Automated depth control
- Support for 2D + 3D models
- Industry-grade detail
- Compact, quiet, safe operation
Whether you’re a gift business, trophy shop, personalization kiosk, or a maker wanting to add premium 3D crystal engraving to your workflow, the xTool F2 Ultra UV is one of the best options available today.
Check Amazon Price Below
- Master of Glass Engraver: xTool F2 Ultra UV laser engraver machine delivers the simplest solution for 3D engraving inside glass and crystal with flawless results. This versatile UV laser engraver excels at surface engraving, embossing, cutting, and rotary engraving with premium results. Perfect for creating custom wine bottles, 3D crystal trophies, and personalized glass gifts for any occasion
Frequently Asked Questions
What materials can the xTool F2 Ultra UV engrave or cut?
The xTool F2 Ultra UV can engrave a wide range of sensitive and hard-to-process materials, including glass, crystal, acrylic (without melting), plastics (ABS, PP, PET, PVC, silicone), wood, leather, ceramics, coated metals, and PCBs.
Can the F2 Ultra UV engrave inside glass?
Yes — this is one of its main advantages.
The F2 Ultra UV performs true 2D/3D inner glass engraving without requiring manual focusing. You simply enter the glass object’s size and position, and the machine automatically adjusts focus to engrave inside crystal blocks, awards, ornaments, and cubes.
(Tempered, laminated, or heavily tinted glass is not supported.)
Does the xTool F2 Ultra UV work with LightBurn?
No.
Because of its advanced UV optics, autofocusing system, and inner-engraving workflow, the F2 Ultra UV only works with xTool Studio.
The good news: Studio supports both 2D and 3D formats (STL, OBJ, AMF, 3MF, GLB, PLY) and includes automated positioning and LiDAR focus routines specific to this machine.
Is the F2 Ultra UV good for engraving metals?
Yes — but with limitations.
The UV laser produces extremely clean, fine marking on metals (stainless steel, titanium, anodized aluminum, etc.). It’s perfect for micro text, QR codes, electronics, and jewelry.
However, it cannot cut metal and does not produce deep engravings like a fiber laser. If you need deep or color metal engraving, the xTool F2 Ultra (60W MOPA Fiber) is the right choice.
Are F2 Ultra UV lenses interchangeable with F2 Ultra lenses?
No — the lenses are not interchangeable.
The F2 Ultra UV and F2 Ultra use different:
Light sources
Wavelengths
Optical interfaces
Field lens designs
They belong to the same “F2 Ultra” series but are completely different machines internally.
Using the wrong lens could damage optics or produce unsafe laser reflections.