Some materials only do one of the two. Tri-layer acrylic is engrave-only (the laser reveals the bonded colors beneath), while plastic and fabric are print-only. In the material picker those groups are labelled "UV only" or "Engrave only", and the toolbar toggle disables the option a material cannot produce. If you pick a material that only supports the other process, we switch the patch over and tell you — nothing changes silently.
Aug 28, 2026