Fused Deposition Modeling (FDM) printers are a type of 3D printer that create objects by melting and extruding thermoplastic filament. The printer lays down layers of material, building the object from the bottom up. This process allows for the creation of complex shapes and designs, making FDM printers popular for both hobbyists and professionals. FDM printers are widely used in various fields, including engineering, architecture, and education. They are known for their affordability and ease of use, making them accessible for beginners. Common materials used in FDM printing include PLA and ABS plastics, which are available in many colors and finishes.