Xtool F1 Ultra FAQ: 8 Questions from a Rush-Order Laser Guy

I’ve been running laser engraving jobs for years—mostly rush orders where a mistake means a lost client. The Xtool F1 Ultra landed on my bench in early 2024, and after processing more than 200 urgent projects with it, I’ve heard every question you can think of. Here are the ones I keep getting—and the real answers.

1. What is the Xtool F1 Ultra, and what makes it different from other desktop engravers?

It’s a dual-laser desktop machine: a 20W fiber laser and a 20W diode laser in one unit. Most desktop lasers are either diode-only (great for wood/leather but useless on metal) or fiber-only (expensive and limited to marking). The F1 Ultra lets you switch between them without buying a second machine. For me, that’s a huge time-saver when a client calls at 4 PM asking for a stainless steel sign and a wooden plaque—both due tomorrow.

2. Do I really need both lasers? Why not just get a dedicated fiber laser?

Short answer: it depends on your work mix. If you only engrave metal, a dedicated CW fiber laser (like a 20W or 30W) will be cheaper per watt. But if you ever need to cut acrylic, engrave glass, or do deep carving on wood, the diode laser covers that. I went back and forth between getting a separate fiber unit and the F1 Ultra for weeks. What sealed it was a rush job where I had to engrave a leather notebook cover and a stainless steel tag—the F1 Ultra handled both in one setup.

3. What materials can it actually cut and engrave?

With the fiber laser: most metals (stainless, aluminum, brass, copper), plastics, ceramics, and stone marking. With the diode laser: wood, leather, acrylic, slate, paper, fabric, and anodized aluminum. It cannot cut thick metal—fiber is for marking and shallow engraving. And it won’t cut clear acrylic well (that needs CO2). I learned that the hard way when a client wanted clear acrylic nameplates. Had to sub out to a CO2 shop and pay rush fees. Lesson: always test a sample before promising.

4. Is air assist really necessary? I skipped it to save money.

That’s a classic penny-wise, pound-foolish mistake. I skipped air assist on my first F1 Ultra order because I thought “it’s only one job.” The result? A $300 batch of wood signs with charred edges—had to redo the whole order overnight. Air assist blows away smoke and debris, giving you cleaner cuts and preventing flame-ups. Xtool sells an add-on for about $80. Buy it. I’ve processed 47 rush orders since adding air assist, and I haven’t had a single charring issue.

5. Can the F1 Ultra engrave photos? How’s the quality?

Yes, and it’s surprisingly good—especially with the fiber laser on metal. The key is software settings and material prep. I’ve done photo engravings on stainless steel dog tags and brass plaques; the grayscale detail holds up. On wood, the diode laser can do photo engraving too, but you’ll get better results with a rotary attachment for curved surfaces. One tip: convert your image to 300 DPI and use LightBurn’s grayscale mode. Don’t skip the test pass—I once ruined a custom photo gift because I was in a hurry. Cost me $150 in materials and a repeat order.

6. The rotary attachment—worth it for tumblers and mugs?

If you do any cylindrical work, it’s a no-brainer. I scored a $1,200 order for engraved Yeti cups last quarter; without the rotary, I’d have needed jigs and wasted 4 hours. The F1 Ultra’s rotary works with both lasers, so you can mark metal tumblers with the fiber or engrave ceramic mugs with the diode. Just make sure you align the workpiece correctly—I messed up the first alignment and had a line of text going off-center. Now I always do a quick dry run first.

7. How does the F1 Ultra compare to a dedicated CW fiber laser (like a 20W Raycus or JPT)?

For pure metal marking, a dedicated CW fiber laser will be faster and have a slightly finer spot (usually 0.03mm vs. 0.05mm). But the F1 Ultra’s fiber module (pulsed fiber) is excellent for marking and shallow engraving—I’ve engraved serial numbers on stainless steel parts down to 0.2mm depth. The trade-off: pulsed fiber can’t do deep engraving like a CW fiber can. So if you’re doing heavy metal cutting or deep mold engraving, get a separate fiber laser. For 95% of small business jobs, the F1 Ultra covers both worlds.

8. Is this machine reliable for production? I’ve had cheap lasers die mid-order.

Reliability is where the F1 Ultra shines. In my experience, the build quality is way better than the sub-$1,000 diode lasers. The rails are linear guides, not the flimsy v-slot ones. I’ve run mine for 6 hours straight on a batch of 200 wooden keychains—no overheating, no skipped steps. The only hiccup I’ve had was a loose lens screw (my fault, not the machine). Xtool’s support was super responsive and sent a replacement within 2 days. For a small shop with tight deadlines, that peace of mind is crucial. Missing a deadline would cost me a repeat client worth $5,000 a year.