The Hidden Cost of Buying an xTool S1: 4 Years of Mistakes (and What I Learned)

If you think the xTool S1 is just a laser, you're already losing money

The real cost of owning an xTool S1 isn't the $1,200–$2,500 machine. It's the $3,000+ I wasted in materials, accessories, and rework over four years because I didn't calculate total cost of ownership (TCO) upfront. That's a hard lesson I'm documenting here so you don't repeat it.

I'm David, and I run a small custom laser engraving business out of my garage in Portland. I've been handling custom orders for makers, small businesses, and a few local shops for four years. In that time, I've made every mistake including one that cost $1,250 in a single 48-hour redo. I now maintain our team's pre-check checklist to prevent these errors. This is that checklist, born from roughly $12,000 in cumulative waste.

What I mean is: the laser itself might be the cheapest part of the setup. The real money goes into the accessories, the materials you ruin learning, and the time spent re-running jobs you already paid for.

Why I trust my own experience (and you should question it)

I'm not a laser engineer. I'm a guy who ran a 10W module into the ground before upgrading to the 20W kit (xTool S1 20W laser). I've tested the 40W module on a friend's unit for a week. I've engraved wood, leather, acrylic, and glass — and failed at cutting metal (diode lasers can't cut thick metal, period). This was accurate as of 2023; the market for diode lasers moves fast, so check current specs before buying.

Here's the operating context I mention for transparency:

• Home-garage setup, not a factory
• Ventilation is decent but not industrial
• Standard xTool air assist (the most expensive one I bought)
• 20W module for the last 2 years

The mistake that cost me $1,250 was a 50-piece order of commemorative plaques. I'd run the job once successfully on scrap but forgot to account for material density variation. Every single piece came out with incomplete engravings. That's $890 in replacement material, $360 in rush shipping, plus 3 days of production delay. I've caught at least 20 potential errors using my checklist since then. (Should mention: my checklist isn't perfect — I still miss things.)

The 5 most expensive mistakes I made with the S1

Here are the mistakes that hurt, in rough order of cost:

1. Buying the cheapest air assist (saved $40, wasted $200)

I bought a DIY air pump off Amazon for $35. It was loud, weak, and after three months, it failed mid-job. The charred edges on that run ruined the piece. I ended up buying the official xTool air assist ($89, as of 2023) and a backup pump ($79). Total: $168 vs. the $35 I "saved." Net loss: $133 plus the ruined material.

Oh, and the noise — I should add that the cheap pump was so loud my neighbor complained. The official one is quieter. So include that in your TCO.

2. Ignoring the rotary bundle until I needed it

The xTool S1 can engrave cylindrical objects, but you need the rotary bundle ($299 as of 2023). I assumed I could rig something up. I couldn't. I broke a wine glass worth $30 trying to improvise. Then I bought the rotary bundle, plus a replacement glass. The lesson: accessories aren't optional, they're part of the TCO.

In my opinion, if you plan to sell engraved cups or bottles, add the rotary bundle to your budget immediately. It's not a "nice to have" — it's core to getting the sale.

3. Not accounting for learn-as-you-go material waste

I bought a bulk pack of acrylic sheets ($89 for 10, 12x12") thinking I'd save. Then I burned 6 sheets figuring out the proper power and speed settings for the 20W module. That's $53.40 in waste. On wood, I wasted another $45. On glass, maybe $30. Budget at least $100 for test materials.

To be fair, some of this waste was avoidable if I'd read the xTool forums more carefully. But assuming you'll learn on your first try? That's optimistic for most materials. The way I see it, test materials are part of the purchase price.

4. Believing I could cut metal (I couldn't)

This is a big one. The xTool S1 can mark metal with a diode module (10W/20W/40W), but it cannot cut it. I tried to cut a thin aluminum sheet (0.5mm) with the 20W module. Result: 10 passes and a blackened mess. The aluminum wasn't cut — it was just scorched. That piece went in the trash.

I see people searching "hand held laser welding machine" and thinking the S1 can do that. No. Handheld welding machines use different technology (fiber lasers). The xTool S1 is for engraving and cutting non-metals (wood, acrylic, leather, fabric) and marking metals with coatings or anodized surfaces. If you need to cut metal, buy a CO₂ or fiber laser, or verify on xTool's site for the latest specs (as of 2024, they added a fiber laser module for the P2, not the S1).

Take this with a grain of salt: I'm not 100% sure about xTool's future roadmap. But as of early 2025, the S1 diode won't cut thick metal.

5. Overlooking the cost of proper ventilation

The S1 comes with a small fan and charcoal filter. It's okay for light use. But for frequent jobs (especially acrylic), the smell and fumes are real. I spent $250 on an inline fan and ducting upgrade. That's not including the cost of replacing filters ($30 every 3 months).

So glad I upgraded the ventilation — almost didn't. Which would have meant headaches and possibly health issues. (Note to self: check local ventilation regulations for laser use.)

The pre-check checklist I now use before every job

Based on the above, here's the checklist I run mentally (and now on paper) before every production run. It's not comprehensive, but it's a start:

1. Material verified — Type, thickness, density checked against xTool's published settings (circa 2023).
2. Air assist test — Running? Strong enough?
3. Rotary bundle — If cylinder, is it installed and calibrated?
4. Test scrap — Run a 2"x2" test on same material batch.
5. Ventilation on — Filter fresh? Fan speed set?

That checklist alone has saved me from at least 8 errors since I created it (mid-2024).

What I'd do differently

If I could go back to 2021 when I bought my first xTool S1 20W laser, here's what I'd change:

• Allocate $400 for accessories (air assist, rotary bundle, better ventilation) as part of the TCO.
• Budget $150 for test materials (at least).
• Read the forums before buying cheap alternatives.
• Acknowledge the S1's limits — it's a diode laser, not a CO₂ or fiber. That's fine! It's great for hobbyists and small businesses making signs, gifts, and prototypes.

In my opinion, if you're looking for a "metal engraving machine for sale," the S1 is a viable option for marking metals (coated or anodized), but it's not for cutting. Consider the xTool P2 or a dedicated fiber laser for that.

When this advice doesn't apply (boundary conditions)

This checklist and cost analysis is based on my experience as a solo operator in a home garage. It will not apply fully if:

• You run a high-volume production facility — Your TCO calculation is different (volume discounts on materials, faster depreciation).
• You're a pure hobbyist with zero need for production — The time cost and waste might be acceptable as learning.
• You already own a CO₂ laser — The diode is often used for marking only, reducing waste.
• You've been doing this for years — Your material knowledge is probably better than mine.

I learned this in 2021–2023. The xTool S1 diode laser market evolves fast, so verify current pricing and accessories on xTool's own site (as of January 2025). I'm not 100% sure about upcoming modules, but the principle of TCO — thinking beyond the machine price — never goes out of date.

If you're shopping for "things you can laser engrave" or "metal engraving machine for sale," the S1 is a solid choice for many materials. Just budget for the real cost — the laser is the cheap part.