XTool F1 Ultra: The Honest Review from a Quality Inspector Who Tests Everything

Let's cut the fluff. The **xTool F1 Ultra** is a genuinely interesting piece of kit because it marries a 20W fiber laser source with a 20W diode laser in one desktop unit. Not a gimmick, but a practical solution for specific shops. From my perspective as someone who reviews manufacturing equipment and deliverables for a living, its real value isn't in being the 'best' at everything, but in being 'good enough' at a wide range of tasks that would normally require two separate, expensive machines. I'm the guy who signs off on quality before anything hits the customer. At my last role, I was reviewing 200+ unique items annually, from prototype components in aerospace to finished acrylic signage for retail. I've rejected a significant percentage of first deliveries because specs were off by a fraction of a millimeter. I'm not easily impressed, and I don't trust marketing claims. Here's the thing a lot of reviews don't tell you: the F1 Ultra excels in its *compatibility*, not necessarily in raw power. Being able to switch from marking a steel knife blade (fiber laser) to cutting a piece of 3mm acrylic (diode laser) in under a minute is the real win. But the settings to get that right aren't always obvious. Let's break down what I've found actually works.

Realistic Settings for Acrylic Cutting with the xTool F1 Ultra

This is where the 'dual laser' thing trips people up. The diode laser (455nm, ~2W optical output) is what you'll use for acrylic. The fiber laser (1064nm, 20W) will pass right through clear acrylic or just scorch it. Don't use the fiber laser for clear acrylic cutting – it doesn't work. For **3mm cast acrylic** with the 20W diode module, my tested starting point: - **Speed:** 5-8 mm/s - **Power:** 80-95% - **Passes:** 3-5 (depending on acrylic purity) - **Air Assist:** ON (mandatory)

I said 'mandatory' because without it, the flame from the cut will warp the edge and cause a 'recast' layer that looks terrible. You'll get a frosted, not flame-polished, edge. Don't hold me to this, but in my testing, using air assist at 15 L/min reduced edge rejection rates by roughly 70%.

The **xTool f1 ultra acrylic cutting settings** are going to vary by brand. The cheaper extruded stuff cuts faster but often produces a lower-quality edge. Cast acrylic takes longer but gives a cleaner, flame-polished finish. Looking back, I should have just bought a sample sheet of each before starting my production run. At the time, I bought a large lot of extruded stuff because it was cheaper. That quality issue cost me a $2,200 redo on a batch of 50 display stands because the edges required manual sanding.

Can the xTool F1 Ultra Cut Metal? Yes, But…

Per the manufacturer's specs, the 20W fiber laser module will mark and cut thin metals. The keyword is 'thin.' The 'xTool f1 ultra metal cutting' capability is real for **foils and sheets up to about 0.5mm (0.02 inches)** thick. For example, 301 stainless steel shim stock? No problem. 1mm (0.04 inch) mild steel? That's a stretch. You might get through it in 20+ passes with a lot of charring, but the edge won't be clean. For **engraving**, it's fantastic. The fiber laser will leave a permanent, high-contrast mark on most metals: steel, aluminum, brass, copper, even some anodized aluminum. But don't believe anyone who says it cuts 1/4-inch steel plate. It doesn't. It's just not powerful enough. This is the core of the 'expertise_boundary' view I hold. It's not a weakness to say what a machine *can't* do. The vendor who honestly says 'this isn't for 3mm steel plate—you need a proper CO2 or fiber laser for that' earns my trust. I'd rather work with a machine that has clear boundaries than one that overpromises and underdelivers. The 'it does everything' thinking is a myth. The laser industry has been selling that idea for 20 years, and it's still not true.

Cutting Gun Case Foam: A Practical Application

One of the most practical uses for a desktop laser is cutting custom foam for tool or gun cases. Yes, you can definitely 'laser cut gun case foam.' The F1 Ultra handles this well. The secret is the **air assist**. The 20W diode laser will cut through 15mm (0.6 inch) PE foam (the standard pick-and-pluck stuff) with a single pass at moderate speed. It's very effective. I ran a blind test with our shop team: same foam with the F1 Ultra vs. a high-powered CO2 laser. 85% of them identified the CO2 as having a slightly smoother edge, but the F1 Ultra's edge was still perfectly acceptable and much faster to set up. On a small run of 10 inserts, the difference was negligible. It's not for high-volume production, but for a custom one-off or a small shop, it's excellent.

The 'Super-Power' of CNC Routers vs. Lasers

This is another common confusion point. People ask about 'cnc router laser engraver' comparisons. A CNC router is a subtractive process that uses a spinning bit to physically cut. A laser melts or vaporizes material. They are not the same, and one isn't inherently better than the other. A CNC router can cut almost any material up to 10mm thick (wood, plastic, aluminum, etc.) with a good bit. It creates dust and requires fixturing. A laser is cleaner, more precise for detailed engraving on flat surfaces, but struggles with thick materials and reflective metals. For a shop needing versatility, the F1 Ultra, combined with a small CNC router, is a powerful duo. Neither replaces the other. If you're only doing 2D engraving on flat surfaces and cutting thin materials, get the laser. If you need to cut 3D shapes or thicker materials, get the router. Don't fall for the marketing that says one machine does it all perfectly. The history of machine tools is littered with 'universal' machines that did everything poorly.

The 'Secret' Objection: Can You Laser Cut Rubber?

Technically, yes. But it's a bad idea. The 'can you laser cut rubber' question is popular, and the answer is often 'yes,' but the real answer is 'it depends.' Laser cutting rubber produces toxic fumes (hydrogen chloride, sulfur compounds) that will ruin your laser tube, etch your lens, and stink up your entire shop. You absolutely **need** industrial ventilation and a high-quality HEPA filter. A desktop machine in your garage with a tiny exhaust fan is not safe. The risk is real, and I've seen small shop owners burn out a lens in a week cutting rubber. It's not worth the headache unless you have a proper extraction system.

Final Verdict from a Quality Inspector

Is the xTool F1 Ultra worth it? For a small business, a prototyping shop, or an enthusiastic hobbyist who wants to do **both** metal engraving and acrylic cutting in one unit, yes. It's a good value. The dual laser concept is not a gimmick if you actually plan to use both. The build quality is decent for the price, and the software is functional. But it's not a magic wand. - If you only need to cut acrylic, a dedicated CO2 laser is cheaper and faster. - If you only need to engrave metal, a dedicated 30W MOPA fiber laser is more powerful. - If you need to cut thick metal, you need a waterjet or a CNC mill. The F1 Ultra fills a very specific niche: the hybrid workshop where you need to do both, but don't have the space or budget for two separate lasers. Its strength is in its versatility, not its raw power. As of my Q1 2025 testing, it's a solid 8/10 for its target use case. But always verify your specific material requirements before hitting 'buy.' And remember: the machine is only as good as the air assist, the extraction, and the person writing the settings.