Delve into the world of 3D modelling
and printing techniques and discover the innovative processes that bring digital designs to life.
3D Modelling Techniques
3D modelling is the process of creating a three-dimensional digital representation of an object or a scene. There are several techniques used in 3D modelling:
01
Polygonal Modelling
This technique involves creating a 3D model by manipulating polygons such as triangles, quads, or polygons with more sides. Artists can extrude, scale, rotate, and manage these polygons to create complex shapes.
02
NURBS Modelling
NURBS (Non-Uniform Rational B-Splines) is a mathematical representation used to create smooth curves and surfaces in 3D models. This technique is useful for designing organic shapes and complex curved surfaces.
03
Sculpting
Sculpting is a technique that allows artists to manipulate a digital 3D model as if they were sculpting clay. Artists can use various brushes and tools to add or remove digital material, creating intricate details and organic shapes.
04
Parametric Modeling
Parametric modelling involves creating 3D models by defining and manipulating parameters and constraints. It allows for easy modifications and adjustments by changing these parameters, making it useful for designing objects with customisable dimensions.
3D Printing Techniques
3D printing, also known as additive manufacturing, creates physical objects from a digital 3D model. There are several 3D printing techniques, including:
01
Fused Deposition Modelling
FDM is one of the most common 3D printing techniques. It works by melting and extruding a filament material, usually thermoplastics like ABS or PLA, through a heated nozzle. The nozzle deposits the material layer by layer to create the object.
02
Stereolithography
SLA utilises a liquid resin that is solidified layer by layer using a UV laser or light source. The laser traces the shape of each layer, curing the resin and creating the desired object. SLA is known for its high level of detail and accuracy.
03
Selective Laser Sintering
SLS uses a high-powered laser to fuse powdered material, typically nylon or other polymers, layer by layer. The laser selectively fuses the powder particles, creating a solid object. SLS is often used for functional prototypes and complex geometries.
04
Digital Light Processing
DLP is similar to SLA but uses a different light source, such as a projector or an array of micromirrors. The light source cures the liquid resin layer by layer, solidifying the object.
05
Binder Jetting
This technique involves depositing a powdered material layer by layer and applying a liquid binding agent to fuse the particles. It can be used with various materials, including metals, ceramics, and sand.
