Glowforge has access to a tip-open design platform where users can create their tips and engravings with their software and then use these unique tips on different materials.
The material they are currently compatible with is A4 paper, acrylic, PETG plastic, and cardstock.
The plastic and acrylic can be cut into any combination of thicknesses. In contrast, paper can only be cut in one thickness.
However, users can purchase additional cutting wheels, which allow them to cut into different thicknesses than what comes with the Glowforge.