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3D printing, or additive manufacturing, is the construction of a three-dimensional object from a CAD model or a digital 3D model. [1] [2] [3] It can be done in a variety of processes in which material is deposited, joined or solidified under computer control, [4] with the material being added together (such as plastics, liquids or powder grains being fused), typically layer by layer.
Dynamic Interface Printing (DIP) is an advanced light-based 3D printing technique that uses a hollow print head with a transparent glass window to enable precise polymerization at the air–liquid meniscus. By submerging the print head into a liquid prepolymer solution, trapped air forms the meniscus, which acts as the print interface.
3D printing, and open source 3D printers in particular, are the latest technology making inroads into the classroom. [ 158 ] [ 159 ] [ 160 ] 3D printing allows students to create prototypes of items without the use of expensive tooling required in subtractive methods.
Additive manufacturing, or "3D printing," is commonly used for prototyping, as the machines can create parts without the expensive tooling process or the need for skilled machining.
Stereolithography (SLA or SL; also known as vat photopolymerisation, [1] optical fabrication, photo-solidification, or resin printing) is a form of 3D printing technology used for creating models, prototypes, patterns, and production parts in a layer by layer fashion using photochemical processes by which light causes chemical monomers and ...
3D printers use a variety of methods and technology to assemble physical versions of digital objects. Typically desktop 3D printers can make small plastic 3D objects. They use a roll of thin plastic filament, melting the plastic and then depositing it precisely to cool and harden.