3D printing, also known as additive manufacturing, is a process of creating three-dimensional objects by layering materials on top of each other based on a digital model. It's a method where successive layers of material are laid down in different shapes, making a tangible object from a digital file. There are various types of 3D printing technologies , including: Fused Deposition Modeling (FDM) or Fused Filament Fabrication (FFF): This method involves melting a thermoplastic filament and depositing it layer by layer to create the object. Stereolithography (SLA): SLA uses a UV laser to solidify liquid resin layer by layer to form the desired shape. Selective Laser Sintering (SLS): SLS uses a high-powered laser to fuse powdered materials, such as plastics, metals, or ceramics, into a solid structure layer by layer. Digital Light Processing (DLP): Similar to SLA, DLP uses a projector or UV light to cure resin layer by layer, but it does so for an entire layer at once. Applications