The 7-Point Checklist I Wish I Had Before My First Laser Cutter Order

When to Use This Checklist (And When to Run)

I'm the guy who handles our custom fabrication and prototyping orders. I've been doing it for about six years now. In that time, I've personally documented—and paid for—at least a dozen significant mistakes, totaling roughly $3,800 in wasted budget and a fair amount of embarrassment. The worst one? A $1,200 sheet metal order that went straight to the scrap bin because of a file error I should have caught.

That's when I built this checklist for our team. We've used it to catch 47 potential errors in the past 18 months. It's not about being a laser expert; it's about asking the right questions so the vendor can be the expert for you.

Use this if you're ordering laser cutting, engraving, or marking services from a shop (online or local). It's especially useful if you're new to this, working with a new vendor, or dealing with a material you haven't used before. If you're just buying a pre-made sign from a catalog? You probably don't need this. But if you're supplying a design file and expecting a specific physical result? Keep reading. There are 7 steps.

The Pre-Submission Checklist

Do this before you upload your file or send your first email. It saves everyone time.

Step 1: Material & Thickness Lockdown

This seems obvious, right? It's not. Saying "cut from steel" is like saying "print on paper."

You need the exact material grade and thickness. "3mm mild steel" is a good start. "16-gauge 304 stainless steel" is better. Why? Different materials and thicknesses require different laser types (CO2 vs. fiber), different power levels, and different gases (like nitrogen or oxygen for steel). Get it wrong, and you get a bad cut, discoloration, or a vendor who simply can't do the job.

In my first year (2018), I sent a file for "aluminum" parts. I got a quote, approved it. The parts came back with rough, oxidized edges. Turns out I needed "anodized aluminum" for a clean edge, and the shop used a standard CO2 laser process. That was a $350 redo. The question isn't just what material, it's what finish and grade do you need the final part to have?

Checkpoint: Do you have a material sample or a precise material spec sheet? If not, ask the vendor what they recommend for your application.

Step 2: The File Format & Unit Audit

This is the step most people think they can skip. I thought that too. "It's basically the same as last time," I said. It wasn't. $400 mistake.

Vendors almost always want vector files (like .DXF, .AI, .SVG) for cutting. Raster files (.JPG, .PNG) are for engraving. But here's the critical part: check your units and scale. Is your drawing in inches or millimeters? A 100-unit line in software set to millimeters is very different from one set to inches.

My personal rule? I create a "scale box" in the corner of my file—a rectangle that's exactly 1 inch or 10 mm square. In the order notes, I write: "Please confirm scale box measures [X]." It gives the operator a quick visual check.

Checkpoint: Open your file in a fresh viewer. Does the scale look right? Have you removed all stray points, duplicate lines, or text that hasn't been converted to outlines?

Step 3: Kerf & Tolerance Conversation

This is the one most beginners (and, ahem, experienced people in a hurry) ignore. Kerf is the width of material the laser burns away. If you design two parts to fit together with perfect, touching lines, the kerf will make them too loose. You need to account for it in your design by adding a small gap.

Ask the vendor: "What kerf width should I design for with my material and thickness?" Also ask about their standard cutting tolerance (e.g., ±0.005" or ±0.1mm). This tells you how much variation from your perfect dimensions is acceptable.

Seeing a batch of 50 interlocking acrylic pieces that wouldn't fit vs. the 5 prototypes that did made me realize why prototyping with the same vendor and process matters. The prototype used a slightly different focus, changing the kerf just enough.

Checkpoint: For parts that assemble, have you added a kerf compensation (usually 1/2 the kerf width on each side of a cut)?

The Quote & Order Clarification

Now you have a quote. Don't just look at the price and the delivery date.

Step 4: Decode the "Setup Fee"

Some vendors bake all costs into the per-part price. Others have a separate setup or programming fee. This is normal, especially for low quantities. But you need to understand what it covers.

Ask: "Does the setup fee include a test cut or proof?" For complex or expensive jobs, a test cut on scrap material is worth its weight in gold. If it's not included, ask what it costs. For a simple job on cheap material, you might skip it. For that sheet metal disaster I mentioned? A $50 test cut would have saved $1,200.

Checkpoint: Is the cost structure (setup + per-part) clear? Does it match your budget for both a small prototype run and the full production quantity?

Step 5: Define "Done" (Finishes & Deburring)

How does the part come off the machine? A laser cut leaves a edge condition—sometimes smooth, sometimes with a slight taper, often with residue (called dross) or discoloration (heat-affected zone).

You must specify: "Is deburring or edge cleaning included?" If you need clean, ready-to-use parts, you might need to pay for secondary finishing. If you're painting or powder coating later, light dross might be fine. Don't assume.

Also, for engraving: discuss sample proofs. Color fill engraving (painting the engraved areas) is a separate, manual step. If you need it, it needs to be on the quote.

Checkpoint: Have you looked at sample photos from the vendor of a similar material and thickness to see the "as-cut" finish?

Step 6: The Packaging & Shipping Assumption Trap

I once ordered 25 delicate acrylic nameplates. They arrived in a large box with a single sheet of bubble wrap. Five were scratched. The vendor said, "You didn't specify packaging." They were right.

If your parts are delicate, prone to scratching, or need to be kept flat, you must specify packaging requirements. Ask: "How will these be packaged to prevent damage in transit?" For sheet metal parts, are protective films or separators used to prevent scratching?

Also, confirm who arranges and pays for shipping. Is it included? Is it a separate line item? Get the estimated shipping cost before you approve the order.

Checkpoint: For your parts, what is the single biggest shipping/packaging risk (bending, scratching, breaking)? Have you communicated that?

The Final Step (Before You Pay)

Step 7: The Pre-Production Approval

This is your last gate. A good vendor will send you some form of pre-production confirmation. It might be a PDF markup of your file, a written summary of the specs, or a simple email saying "We're cutting X from Y material at Z thickness."

Do not gloss over this. Read it. Verify every parameter: Material. Thickness. Finishes. Quantity. File revision. Compare it to your checklist. A single typo here—"3mm" instead of "5mm"—is catastrophic.

My policy now? I won't give final approval unless I have that written summary in an email. A verbal "yeah, we got it" over the phone isn't enough. That policy came from the one time a verbal agreement got forgotten.

Checkpoint: Do you have a written record (email is fine) that both you and the vendor agree on the exact specifications, price, and delivery date?

Common Pitfalls & Final Thoughts

This checklist is pretty straightforward, but here's where people still trip up:

• Rushing the prototype: They use a different, faster process for one piece than for one hundred. Always ask: "Is this the same process that will be used for the full order?"
• Forgetting about lead time: "In stock" material vs. "to be ordered" material can add weeks. Ask about material availability upfront.
• Not planning for waste: Order a few extra pieces. One might get damaged in shipping, or you might need it for later testing. It's cheaper to add them now than to place a whole new minimum-order later.

Personally, I'd rather spend 20 minutes going through this checklist with a new vendor than deal with the fallout of a mismatched expectation. An informed customer—one who asks good questions—gets better results and builds a better relationship with their fabricator. It turns a transaction into a partnership. And that, in my opinion, is worth more than just finding the lowest price.