There are many common materials for 3D printing, roughly the following: PLA, ABS, PETG, fire-retardant PLA, flexible PLA, CFR-ABS, standard resin, flexible resin, high-temperature resistant resin, ceramic-filled resin, titanium alloy, nickel-based superalloy, aluminum-silicon alloy, zirconia, hydroxyapatite, carbon fiber-reinforced nylon, graphene-reinforced PLA, bioink, shape-memory polymer, light-responsive resin, self-healing material, chocolate, plant-based materials, high-strength concrete, aerogel composite, PC/ABS alloy, PEEK, TPU.