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UV Laser Guide

Buying Guides

Desktop UV Laser Buying Guide

How to choose a desktop UV engraver: 355 nm versus diode or fiber, 5 W versus 10 W, field size, software, enclosure, and exhaust.

2 min read

On this page
  1. UV, diode, fiber
  2. Questions that change the invoice
  3. A sane first month
  4. FAQ

A desktop UV laser is a 355 nm galvo. It marks glass, slate, ceramic, many plastics, and coated metal, and it can put points inside clear crystal. It is a poor answer if you mostly cut 6 mm plywood or engrave bare deep metal. Buy it for the materials the other lasers char, crack, or skip.

The two machines readers compare first are the xTool F2 Ultra UV and the ComMarker Omni 1. This page is the checklist behind that comparison.

UV, diode, fiber

A coarse sort, not a spec sheet. Use it to leave the store that is selling you the wrong wavelength.
SpecDiodeFiberUV (355 nm)
Happy jobWood, leather, coated tumblersBare metal marksGlass, slate, plastic, crystal
Unhappy jobClear glass, inner crystalA plywood signCutting thick metal plate
Typical desktop feelGantry, slower, cheaperGalvo, metal-firstGalvo, small field, higher price

Questions that change the invoice

  1. What do you sell? Coasters and small signs want field size. Crystal cubes want the inner lens. A jewelry tag wants a small, sharp spot more than a 200 mm square.
  2. 5 W or 10 W? The F2 Ultra UV is 5 W. The Omni 1 is listed in more than one power. Extra watts are not extra sharpness. They can be extra speed or a deeper mark. Test the product, or at least demand a sample of it.
  3. Which software will you live in? xTool Studio and LightBurn are not the same files, the same camera tools, or the same material library. Switching later is a second education.
  4. How big is the field on the lens you are buying? Galvo fields are the lens, not a promise printed on the carton photo. Edges are where focus and shape get worse. Put your real artwork in the real field.
  5. What happens to the smoke? Plan the hose before the machine arrives. Inline fans for the F2 Ultra UV.
  6. Is the lid an interlock or a suggestion? The source is Class 4. Treat an open lid as an open Class 4 laser. Read the manual for the Class 1 claim, and do not defeat the switch.

A sane first month

Buy one blank you already know you can reorder. Run the focus steps and a grid. Save the preset with the supplier's name. The slate version of that month is written out in xTool F2 Ultra UV slate settings and how to calibrate.

FAQ

Is a UV laser worth it for a beginner?

If the products are glass, slate, or crystal, yes, and the learning curve is the grid, not a secret menu. If the products are plywood signs, a diode costs less and cuts more of what you sell.

Can a UV laser cut metal?

Not in any thickness you would call a part. It can mark metal. Plan on a fiber machine if bare-metal depth is the business.

Can it cut wood and acrylic?

xTool lists cutting for wood and for acrylic that is not fully transparent, in multiple passes, on the F2 Ultra UV. It is still the wrong first machine if cutting sheet goods is most of the work.

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