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Selective laser sintering can be used to print complex structures. It does not need any support structures, but the technology can struggle to print very thin structures that are stable enough to not break easily. SLA With SLA, it is possible to print in high resolution, but the quality decreases when the resin becomes cloudy. [citation needed] LOM
The proportion of these structures, known as 'infill density', is a key parameter that can be adjusted in the slicer. Support structure (in blue) generated by Cura software. Supports: Since most 3D printing processes build objects layer by layer, from the bottom up, each new layer is deposited directly on top of the previous one. Consequently ...
The use of multi-material 3D printing reduces the amount of post processing needed for the same result, as colours can be printed directly. Furthermore, it is possible to use a water soluble material for printing the support structures, as their removal only involves placing the object into a water bath. [11]
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.
An SLS machine being used at the Centro de Pesquisas Renato Archer in Brazil.. Selective laser sintering (SLS) is an additive manufacturing (AM) technique that uses a laser as the power and heat source to sinter powdered material (typically nylon or polyamide), aiming the laser automatically at points in space defined by a 3D model, binding the material together to create a solid structure.
For this kind of 3D printing technology additional vertical support structures d) are needed to sustain overhanging parts Example of a 3D printer. Timelapse video of a hyperboloid object (designed by George W. Hart) made of PLA using a RepRap "Prusa Mendel" 3D printer for molten polymer deposition.