Leather including Chromium VI and artificial leather
Or materials containing halogens (Fluorine, Chlorine, Bromine, Iodine, and Astatine), epoxy resin or phenolic resin
Laser cutting or laser engraving the materials above might produce dust or gas which endanger operators or the laser cutter. Therefore, using laser equipment to process those materials is not recommended.
Besides, DO NOT cut/engrave the following types of materials:
Note: The use of poor-quality materials may result in poor cutting/engraving or damage to the laser cutter. It is recommended to use Makeblock’s official materials.