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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 ...
The printer uses Texas Instrument's DLP technology as its light source and printing time is further reduced as entire layers of resin can be cured at one time. Other components include an industrial grade linear stage module, an open-source controlling circuit, a stepping motor, a fast leveling build platform, and Kudo3D's patented flexible PSP ...
For example, DLP-based methods have an advantage of manufacturing the entire layer at once. However, DLP idle time is longer due to the adhesion force. SLA based method uses two or more lasers that intersect at specific points to cure the material -- point by point curing -- however, it presents challenges in both planning and implementation.
3D Systems manufactures stereolithography (SLA), fused deposition modeling (FDM), selective laser sintering (SLS), color-jet printing (CJP), multi-jet printing (MJP), and direct metal printing (DMP, a version of SLS that uses metal powder) systems. Each technology uses digital 3D data to create parts through an additive layer-by-layer process.
Significance of support structures and orientation in SLA process. The object, in first case, has strength issues and takes more time to manufacture than in the second case. Part orientation is a very crucial decision in DFM analysis for SLA process. The build time, surface quality, volume/number of support structures etc. depend on this.
Computer-aided design (CAD) model used for 3D printing. The manual modeling process of preparing geometric data for 3D computer graphics is similar to plastic arts such as sculpting. 3D scanning is a process of collecting digital data on the shape and appearance of a real object, creating a digital model based on it.
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