Introduction to 3d printing
Introduction to 3d printing
Subtractive manufacturing vs additive manufacturing
Subtractive manufacturing is a process by which 3D objects are constructed by successively cutting material away from a solid block of material.
Additive Manufacturing (AM) is an appropriate name to describe the technologies that build 3D objects by adding layer-upon-layer of material, whether the material is plastic, metal, concrete or one day…..human tissue.
3dprint a car
Advantages
- Not wasting material
- Rapid prototyping - Small-scale version of the real object in less time than using conventional methods
- Customization
- Local manufacturing
Disadvantages
- It is slow
- Limited Size – The size of objects created with 3d printers is currently limited
- Limited Raw Materials
Fused Deposition Modeling (FDM). A common 3D printing technique that creates objects by melting filament and extruding it through a small nozzle that moves in three dimensions.
Selective Laser Sintering (SLS). A 3D printing technology that uses high intensity light to sinter a powdered material.
Stereolithography (SLA). A 3D printing technology which makes objects by using a high intensity light or a laser to harden a plastic resin.