FDM (Fused Deposition Modeling) is the layer-by-layer 3D printing technology Prusa printers use to turn digital 3D models into physical objects by extruding melted plastic filament.
It works by heating filament and depositing it through a nozzle, following a model’s design one layer at a time—Prusa favors FDM for its balance of affordability, ease of use, and compatibility with filaments like PLA or PETG.
Prusa’s FDM printers are popular for hobby projects, prototyping, or small production runs because they’re beginner-friendly yet offer control for advanced users.
For beginners, start with simple prints (e.g., a keychain) to practice settings like layer height before moving to complex designs.