Practical community notes on drinkware, alongside the official guide.
Know what you're actually engraving
- Powder-coated tumbler — you are removing paint, not marking metal. Much lower power than people expect; too much and you cut into the coating's primer and it looks grey and ragged.
- Bare stainless — needs a fiber source. A diode will not produce a durable mark.
- Coated glass — see the glass guides; clear glass needs a coating or it chips.
Straight wall vs tapered
- Straight-walled items suit the roller: drop on, go. Build a hard-stop cradle jig and your per-item setup drops from minutes to seconds.
- Tapered items need the rotary. On a roller, the top and bottom of a taper travel at different speeds and the artwork stretches.
Measure the diameter at the engrave band, not at the base. That single number is the most common cause of stretched artwork.
Batch work
Build a cradle with a stop block and zero once per batch, not once per item. Keep the engrave band narrow — the further you wrap around a curve, the more focus drifts at the edges.
Wipe with IPA before and after. Residue looks like a bad engrave until you clean it.
LaserPecker publish their own documentation on this topic — worth reading alongside these community notes.
Official article