3D Printing
The 3D printing process builds a three-dimensional object from a computer-aided design model, usually by successively adding material layer by layer through a nozzle, which is why it is also called additive manufacturing.
3D Printing Includes:
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Model Preparation
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Slicing of 3D Model
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Material Change
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Transfer and Start
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Support Removal
Digital Model Creation
The process begins with the creation of a 3D digital model using computer-aided design (CAD) software. This digital model defines the object's shape and specifications.
Printing
The 3D printer follows the sliced model's instructions. It uses various technologies to deposit or fuse material layer by layer to create the object. Common 3D printing technologies include Fused Deposition Modeling (FDM), Stereolithography (SLA), and Selective Laser Sintering (SLS). The material is added precisely based on the design.
Slicing
The digital model is divided into thin horizontal layers using slicing software. Each layer is a 2D cross-section of the 3D object. This step prepares the model for the printing process.
Layer Bonding
As each layer is deposited, it bonds or fuses with the previous layer. The bonding process can involve melting plastic filament (FDM), curing resin (SLA), or sintering powdered material (SLS).
Cooling or Solidification
Depending on the technology, some printers use cooling or UV light to solidify the material, while others use heat to fuse it. This step ensures that the object's layers adhere together.
Object Retrieval
Once all the layers are printed and the object is complete, it can be removed from the 3D printer's build platform.