SLA

Stereolithography (SLA) has become a preferred 3D printing technology for producing high-resolution, detailed prototypes and parts. This process stands out due to its ability to achieve precision and intricate designs that many other 3D printing methods cannot.

3D Model Creation

The process starts by designing a 3D model of the object through Computer-Aided Design (CAD) software. This model is highly detailed and needs to represent every aspect of the part, as it will be the blueprint for the entire printing process.

Slicing the Model

Once the model is created, it’s sliced into thin horizontal layers, typically ranging from 0.05mm to 0.1mm thick. Each layer is printed individually, with the laser selectively curing the resin layer by layer, making the slicing step essential for precision.

Printer Setup

The model is then uploaded to the SLA printer, and the material (liquid resin) is loaded into the printer’s vat. The build platform, which holds the part as it prints, is lowered into the vat, just below the resin surface.

Layer-by-Layer Curing

A UV laser scans the first layer of resin according to the 3D model’s design. The laser beam precisely cures the resin, solidifying it in the exact shape needed. The laser works with exceptional accuracy, allowing for the creation of detailed features and tight tolerances. After each layer is complete, the platform lowers slightly for the next layer to be printed.

Repeating the Process

The process repeats for each layer, building the object from the bottom up. As each new layer is cured, it bonds to the one beneath it, creating a solid, three-dimensional part.

Post-Processing

Once the object is fully printed, it’s carefully removed from the printer. The excess resin is removed, and the part undergoes further curing with UV light to enhance its strength and durability. If required, the part is also smoothed and polished to enhance its appearance and finish.

Final Inspection

After post-processing, the part undergoes a final inspection for quality. This includes checking for surface finish, dimensional accuracy, and any potential defects. The part is then ready for use in testing, molding, or production, depending on its purpose.

What Are The Perks of Using SLA Services?

SLA services offer unmatched precision and the ability to create complex geometries, making it ideal for rapid prototyping and high-performance parts with tight tolerances.

High-Precision Prototypes

SLA printing excels in creating prototypes with intricate details and fine features. The laser’s precision enables the printing of parts with high dimensional accuracy, up to 0.05mm, which makes SLA ideal for industries requiring tightly toleranced parts, like aerospace or medical devices. Whether you’re looking to prototype small, detailed features or large, complex geometries, SLA offers the precision you need.

Excellent Surface Finish

One of the standout benefits of SLA is its ability to produce parts with smooth surfaces. The laser’s fine control results in fewer visible layer lines, making the post-processing time shorter. The surface finish is ideal for visual models, as well as functional prototypes that need to meet high aesthetic standards.

Material Versatility

At Yicen Precision, we provide a wide range of resin options for SLA printing. From standard resins for visual prototypes to durable, high-performance materials that simulate ABS or polycarbonate, we offer solutions for almost every application. Whether you need rigid, flexible, or heat-resistant parts, SLA can accommodate different material requirements.

Fast Turnaround

SLA’s layer-by-layer build process allows for rapid prototyping, providing faster iterations compared to traditional manufacturing methods. At Yicen Precision, we ensure quick turnaround times without compromising on quality. This makes SLA an excellent choice for businesses needing rapid prototyping or low-volume production.

Precision in Design Validation

SLA is ideal for design validation because it allows you to physically test your design before moving to mass production. Whether you’re checking fit, form, or function, SLA parts can be used for real-world testing, ensuring that any design flaws are caught early in the development process.