xTool S1 Settings & Accessories: An Admin Buyer's Guide to Glass Engraving, Acrylic Cutting, and Choosing the Right Gear

When I first specced out our shop's new xTool S1 setup, I made the classic buyer's mistake. I focused on the machine's wattage and maximum cutting area—the headline numbers. I assumed the settings would be plug-and-play and that any 'accessory kit' would be a no-brainer upgrade. Two months in, I've learned the hard way that the real TCO (total cost of ownership) and the quality of your output depend almost entirely on two things: your settings for each specific material and which accessories you actually need (vs. which look cool in a bundle).

Consider this a frank comparison, not a sales pitch. I'm an admin who orders this stuff for a 40-person design shop. We process about 80 orders a year for custom giftware, signage, and prototypes. I report to both the creative director and the finance team, so I feel both sides of the 'quality vs. budget' debate. Here's what I've found on the front lines.

The Two Big Decisions You're Actually Comparing

Most reviews compare the xTool S1 to another laser brand. That's valid. But if you've already decided on the S1 (like we did for its modular diode system and great material range), your real comparison is happening in two areas:

1. Engine vs. Finishing: Your settings for glass engraving vs. acrylic cutting. These two tasks are fundamentally different beasts and your settings approach should be, too.
2. DIY Kit vs. Curated Bundle: Buying the machine + a universal exhaust fan vs. buying the official 'Rotary Bundle' plus the 'Air Assist Bundle.' It's a direct A vs. B on cost, integration, and headache.

I walked into both decisions thinking I knew the answer. I was wrong on one. Let's break it down by dimension.

Dimension 1: Glass Engraving Settings (20W) vs. Acrylic Cutting Settings

The Common Mistake: Treating Glass Like Dark Acrylic

Most buyers focus on power and speed as if they're a single slider—'more power = better, slower = deeper.' The question everyone asks is, 'What's the best speed and power for the S1 20W?' The question they should ask is, 'What material behavior am I trying to exploit?'

Glass engraving with a diode laser (like the 20W module) isn't really 'cutting' glass. It's creating microfractures on the surface that appear frosted. It's a thermal shock process, not a vaporization process. Acrylic cutting, especially with clear or light-colored acrylic, relies on the diode laser to vaporize material—and that requires significantly different energy density.

My Settings After 6 Months of Trial & Error

For Glass (20W module): Lower power (65-75%), moderate speed (250-300 mm/s), and 2-3 passes. Why? High power on a single pass can cause the glass to chip or create a 'milky' haze that looks unprofessional. Multiple passes give you depth without cracking. I don't have hard data on thermal conductivity of different glass types, but based on the 50+ pint glasses we've done, this is the sweet spot for a crisp, white etch. I wish I had tracked the failure rate more carefully—we lost about 12% of our first batch to cracking because I tried a single pass at 90% power. Big mistake.

For Acrylic (20W module): Higher power (90-95%), slower speed (50-80 mm/s), single pass for 3mm clear, two passes for 5mm. Why? Acrylic needs the energy to vaporize cleanly. Too slow and you melt the edges (that re-solidified bead is a nightmare to clean). Too fast and you don't cut through. The S1's air assist is critical here—without it, flame polish turns into a fire hazard. Period. Lesson learned when our first prototype had melted edges that looked worse than a $50 laser job from an online shop. The $5 difference in material cost was lost entirely to rework.

The Verdict

Glass settings are about 'tickling' the surface; acrylic settings are about 'blasting' the material. If you try to apply your acrylic 'cutting' logic to glass, you'll break a lot of glass. It's counterintuitive—you need less power for a harder material.

Dimension 2: Accessories – The Bundled 'Rotary + Air Assist' vs. Piecing It Together

This is where the admin buyer in me clashed with the creative team. The creative director wanted the integrated bundle for 'it just works.' The finance team wanted me to find a cheaper exhaust fan and a third-party rotary.

What most people don't realize is that the official xTool accessories (the RA2 Pro rotary bundle, the air assist kit) are expensive precisely because they include the cabling, the brackets, the software profile, and the verified safety interlocks. The cheap exhaust fan from Amazon? It moves air. It won't blow up. But it might not fit the S1's exhaust port without an adapter (which costs $12, then $8 for shipping). The third-party rotary might work, but you'll spend a weekend mounting it and tuning the software to recognize the step-down ratio.

My Cost-Benefit Breakdown (Real Numbers, January 2025)

Option A (Official 'Complete' Kit): xTool S1 + Air Assist Kit + Rotary Bundle.
→ Cost: ~$1,450 (estimated street price).
→ Setup time: 2 hours, no rework.
→ Support: One phone number.

Option B (DIY Approach): xTool S1 + Home Depot Inline Fan + Third-Party Rotary.
→ Cost: Machine (~$1,000), Fan ($60), Ducting & Adapters ($40), Rotary ($100). Total: ~$1,200.
→ Setup time: 4 hours plus a 'it works' test.
→ Support: Three different companies to blame when the rotary doesn't rotate at the right speed.

We went with Option B (finance said 'save $250'). Here's what vendors won't tell you: The first quote ($1,200) is almost never the final price for ongoing relationships. The cheap fan was loud—so loud the creative director complained it sounded like a jet engine during client tours. We ended up buying a quieter fan ($120). Then the rotary speed was off, meaning we wasted $80 in mis-engraved wine bottles before we realized it was a friction wheel slippage issue (the official RA2 Pro has a belt drive that grips better).

Total cost of our DIY approach: $1,200 + $120 (fan replacement) + $80 (wasted materials) = $1,400. Plus 3 hours of my time and permanent 'I told you so' capital from the creative director. The $50 difference per project translated to noticeably better client retention? Not measurable, but the quiet fan was a game-changer for client visits.

The Verdict

For the rotary and air assist, the official bundle is a no-brainer if your time is worth more than $15/hour. For the exhaust fan? Get the cheap one, but budget for a quieter replacement if you're doing client demos. The S1's exhaust port is a standard 4-inch, but the bracket is specific. Buy the official air assist. Trust me on this one—the integration is worth it.

Dimension 3: The Laser Cutting Pen vs. The S1 – A Surprising Comparison

This is the curveball. Most searches group 'laser cutter pen' with 'laser engraver' thinking they're the same tool. They're not. A laser cutter pen (like a galvo fiber laser or a CO2 laser with a different wavelength) is a dedicated tool for metal marking, often requiring a different focus and beam delivery. The xTool S1 with a diode laser (even the 40W module) engraves anodized aluminum and coated stainless steel, but it won't cut steel.

Why this matters for your purchase: If one of your team members searches for 'laser welder for sale canada' looking to join thin steel, they need a completely different class of machine. The S1 is a cutting and engraving platform for non-metal materials and coated metals. It is not a welding tool. A question I see all the time in forums: 'Can the S1 weld?' No. But the 'laser cutting pen' idea points to a desire for hand-held marking. The S1 is a fixed gantry system. If you need to mark large, immovable objects, the S1 with the rotary bundle comes close, but a hand-held fiber laser pen is a different beast.

What I'd Do Differently

If I had to re-order today, I'd buy the S1 as a stand-alone machine and the official Air Assist. I'd skip the rotary bundle initially (our first 30 orders were flat acrylic awards, no cylinders). I'd invest the savings into a high-quality exhaust fan (the quiet one!) and a dedicated fire extinguisher.

Final Call: When to Choose Which

Choose the xTool S1 for production settings when:
You need multi-material capability in one frame (glass awards Monday, acrylic signs Tuesday).
Your team values integrated support over absolute lowest upfront cost.
Client perception of a quiet, professional shop matters.

Choose a DIY approach (or a different tool) when:
Your budget is absolutely stonewalled and you have an engineering-minded person on staff who loves tinkering.
Your only use case is a single material (e.g., you never do glass or leather).
You need 'laser welder' capabilities—in which case, the S1 isn't the tool, period.

Bottom line: Settings are just as important as the machine. A $1,000 machine with wrong settings produces $50 quality output. A $1,000 machine with optimized settings produces $5,000 quality output. And the accessories? Don't cheap out on the ones that touch the product or the safety of your space. The cheap fan cost me twice. The official air assist saved me once. That's a lesson worth sharing.

Note: Pricing data based on publicly listed prices and my own purchase records, January 2025. Prices fluctuate; always verify current rates.