Process choice
Buyers use 3d laser engraving machine for at least three different machines: a rotary or dynamic focus that follows a curved part, a grayscale process that varies depth in a flat substrate, and a subsurface mark inside a crystal or clear polymer. Quoting all three as one model produces a specification deviation before the price is even read. Pick the meaning, then hold every factory to it.
| Layer | Rotary or curved work | Grayscale depth | Subsurface clear media |
|---|---|---|---|
| Machine | Axis and chuck called out, or excluded | Power control and the depth method on the datasheet | Source class the supplier says can mark inside the media |
| Attachments | Tailstock, rollers, or a fixture drawing | Lens and the software that maps gray values | Fixture that holds the block square to the beam |
| Consumables | Spare lens and any coating the metal curve needs | Waste from test plaques in the real material | Rejected blocks if the focus window is narrow |
| Freight | Crate size with the rotary installed or shipped loose | Usually the base machine crate | Same crate question, plus shock notes for optics |
| Commissioning | A curved sample run, not a flat coupon only | Depth measured on a section, with the instrument named | A clear sample the buyer supplies, with acceptance photos |
No dollar figure belongs in this table. Delivered cost is the sum of the lines a supplier includes. A headline machine price that drops the rotary is a different configuration, even if the model family string matches. The US observation for this phrase is Volume 350 and KD 30 on 2026-05-16. It does not choose among the three meanings. Confirm rated power, working envelope, duty cycle, repeatability, input voltage, control interface, commissioning scope, bill of materials, and ingress protection on the model that matches the meaning you picked. A 10.6 µm CO2 label and a 1064 nm fiber label are source-class names to verify, not a depth measurement.
A standard flat bed keeps the document set smaller and can be enough for sheet goods. A curved or multi-level part may need a rotary, a lifting table, or dynamic focus. Ask the supplier to price the standard configuration and the added axis as separate lines. Choosing the added axis is an engineering call. It is not evidence that every 3D label includes that axis.
Rated power is useful for a first screen when the datasheet states the condition. It does not describe edge quality, depth per pass, or contrast on your alloy or resin. Request the test coupon, the speed, the frequency or pulse note if the source uses one, and the measuring tool. Keep the headline as a screen and the test basis as the comparison field.
The low equipment line can be rational when attachments, filters, training, and spares are truly equal. If they are not listed, you are comparing capital cost with a partial lifecycle scope. Put consumables, commissioning, freight, and exclusions in the same columns on every offer. An optional budget does not close that gap by itself.
This page does not rank factories and it does not set a lead time. See metal options and wood scope if the job is flat stock instead. The procurement note is the longer checklist.
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