xTool · Diode (diode + IR)
xTool S1 · 20W diode
Enclosed 20W diode: safer home engraving with moderate cutting
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Last updated How we evaluate
Released October 2023
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Showing module: 20W diode
TL;DR
The 20W S1 is the value pick in xTool's enclosed diode line: same cabinet and filters as the 40W, but less cut depth on thick wood. Buy this if safety matters and you mostly engrave.
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What makes this machine stand out
Hardware and workflow features worth understanding before you buy : not just wattage on a label.
Swappable laser module
You can upgrade optical power (or add an infrared module on some lines) by swapping the laser head on the same chassis : not buying a whole new machine. Check connector compatibility and firmware before assuming your future 40W module fits today’s 10W purchase.
Open-frame : plan safety first
There is no factory enclosure: you wear OD-rated glasses, control smoke, and keep kids/pets away. You trade cabinet convenience for price and access : fine in a dedicated workshop, stressful in a living room without a plan.
LightBurn compatible
LightBurn support means advanced layers, camera tools, and workflows many makers outgrow the stock app with. Confirm your exact controller board before assuming full features : some machines need a paid license separately.
Galvo speed class
Galvo mirrors move the beam instead of a heavy gantry : engraving speeds that feel instant on small fields. Trade-off: tiny work area versus a flatbed diode; ideal for jewelry, tags, and batch marking, not large signs.
Our verdict
Ideal if you
The 20W S1 is the sweet spot for apartment makers who want enclosure safety without paying for 40W cut headroom. You keep xTool's guided software, optional filter packs, and the same upgrade path as heavier SKUs. For coasters, leather, slate, and filled photos, the job quality matches the 40W module when you run sensible speeds.
Skip if you
Thick hardwood, fast sign cutting, and clear acrylic production still push you toward the 40W head or a CO₂ machine. Photo work at gallery-grade density can take longer than on a dedicated low-watt engraving module. Budget for filter replacements or window ducting if you cut daily.
Pros
- Everyday engrave and light cut mix: typical 8 mm basswood in several passes
- Swappable head on the same chassis: upgrade power without replacing the whole machine
- Integrated cabinet helps contain the beam and everyday smoke versus open-frame diodes
- Software on the profile: trial your workflow on scrap before production
Cons
- Clear cast acrylic and thick production cutting still favor CO₂, not diode power alone
- Confirm optical wattage on the listing before you buy
What this machine is for
Everyday engraving plus reliable light cutting on wood, leather, and dark acrylic
20W module · xTool S1
Laser spot size
~0.07 mm spot
Motion precision: 0.01 mm
Sample engrave job
~9–14 min
10 × 10 cm (4 × 4 in)
Sample cut job
~5–8 min
10 × 10 cm (4 × 4 in)
Reference benchmark: same job size on every machine so you can compare times fairly. Times are estimates for the reference job above; your design complexity and settings will change them.
Materials
- · Wood
- · Leather
- · Slate
- · Anodized aluminum
- · Stainless (with spray)
Accessories & add-ons
Typical inclusions and add-ons for this profile : confirm your SKU.
- Included
Enclosure / cabinet
Third-party enclosure improves smoke control and safety
- Recommended
Laser safety glasses
~450 nm diode: OD rated for your wavelength
- Recommended
Fire extinguisher
Editorial guidance : not a live parts list. See also: Ventilation setup · Safety basics
Practical notes
Beginner notes
This profile is the 20W SKU on xTool S1. Read the TL;DR and benchmarks above, then compare other modules via the chips before buying.
Pro tips
Use air assist for cuts, lower scan speed for photo engraving. Multiple passes at moderate speed beat one aggressive pass. Check the flagship tier’s cut benchmark if you quote production times to customers.
Pro / technical specsRaw numbers for experienced users comparing machines.
- Max speed (spec)
- 400 mm/s
- Avg engrave speed
- 22–49 mm/s fill
- Avg cut speed
- 2–3 mm/s on 3 mm wood
Common questions
Is the xTool S1 safer than an open-frame laser?
Yes. The enclosure blocks direct beam exposure and contains smoke. You still follow safety rules, but accidental exposure risk is much lower than open-frame diodes.
Can the S1 replace a CO₂ laser?
No. It is still a diode laser with the same acrylic and cutting limits. Buy CO₂ (like xTool P2) if clear acrylic and thick wood cutting are your main work.
Can I upgrade from 20W to 40W later?
Yes. S1 laser heads are interchangeable: buy a 40W module and swap it on the same enclosure (two screws + connectors). You can also add the optional 2W 1064 nm IR module for more metal work.
Is the S1 a hybrid laser like the F1 Ultra?
No. S1 is a diode platform with swappable diode (or IR) heads. Hybrid machines combine fiber and diode sources inside one dual-source product: different category.
Alternatives to the xTool S1 20W
Machines in the same space, picked from our database by type, price, and score.
xTool · CO₂ · $3,399 – $6,609
The xTool P2 is a 55W enclosed CO₂ laser with a large work area and camera alignment. It cuts acrylic and wood far better than any diode laser. Expensive, but the closest thing to a 'set up and run a small shop' desktop machine.
Glowforge · CO₂ · $999
Glowforge's compact CO₂ laser designed for crafters. Easy software, quick setup, and decent cutting for thin materials. The catch: premium hardware price plus required subscription for full features, and a smaller work area than xTool P2.
xTool · Diode · $699 – $899
The 20W D1 Pro module is xTool's most popular open-frame head: mixed engraving and light cutting on the large D1 bed. Verify optical power on the listing; swap to 40W later if cut jobs dominate.