Stereolithography, better known as SLA, is a sophisticated 3D printing technique in which a liquid resin is cured layer by layer using a UV light source. This creates highly accurate parts with an impressive level of detail.
Unlike other 3D printing techniques, SLA printing leaves no visible print lines. The printed parts feel smooth and look sleek, almost as if they were cast.
Stereolithography brings the smallest details to life perfectly. Fine structures, intricate shapes, and delicate parts come out of the printer exactly as they were drawn. Every detail is printed sharply.
SLA printing offers the possibility to create fully transparent parts. This is ideal for optical applications, visual models, or prototypes where the internal mechanism must remain visible.
At 3iD, we work with various SLA resins, each with its own specific properties. From standard resins for general applications to biocompatible materials for medical devices and specially developed resins for technical applications.
SLA technology is ideal for creating anatomical models based on medical scans. Doctors use these detailed models for planning surgeries and training. For dental applications such as braces and instruments, SLA is also an excellent choice.
The smooth finish and ability to create transparent parts make SLA perfect for presentation models, design validation, and testing products before they go into production.
SLA allows for printing complex geometries that are difficult to achieve with other techniques. From optical components to small functional parts with fine details - SLA provides solutions where other techniques fall short.
Need parts that are no longer available? With SLA, we can create exact replicas of rare or outdated components. From vintage car parts to components for equipment that is out of production.
The high precision makes it perfect for creating detailed models for jewelry and other design objects. These models can be used directly or serve as a basis for casting processes.
To choose the right technique for your project, it's important to understand the differences. Below, we compare SLA with the most common other techniques:
MJF is an industrial technology that uses polyamide powder (PA12, PA11) for producing robust, functional parts. SLA stands out due to its exceptional detailing and the ability to create transparent parts, making it perfect for visual models and presentation prototypes.
FDM offers an efficient solution for functional prototypes with a wide range of available materials. SLA delivers parts with higher dimensional precision and finer details. FDM is ideal for concept validation and functional testing, while SLA is the best choice when design and accuracy are the priority.
SLS creates parts with excellent mechanical properties, ideal for functional applications. SLA excels in reproducing complex geometries and very fine details, opening up new possibilities for specific applications where precision is key.
Unsure about the right 3D printing technique for your specific application? Get in touch with us! At 3iD, we are happy to think with you to find the perfect solution for your project.
|
Parameter |
Specification |
|
Layer Thickness |
0.025 - 0.1 mm |
|
Minimum Wall Thickness |
0.3 - 0.5 mm |
|
Maximum Build Dimensions |
250 × 250 × 300 mm |
|
Dimensional Accuracy |
±0.05 mm |
|
Standard Finish |
Smooth, no visible layer lines |
|
Typical Lead Time |
2-5 working days |
SLA parts can be made waterproof, but this requires careful design and post-processing. Thin walls may be slightly permeable, but with the right materials and wall thicknesses, fully waterproof parts can be created.
SLA is one of the most accurate 3D printing techniques, with typical tolerances of ±0.05mm for small parts. Accuracy can vary depending on the geometry, orientation, and material properties.
Our SLA printers can produce objects with specific maximum dimensions. In practice, 'too large' pieces are designed in a way that they form one strong piece using a dovetail connection or a pin-and-hole system. We have yet to encounter the first design that we cannot print.
Absolutely! One of the unique advantages of SLA is the ability to print fully transparent parts. With proper post-processing (polishing or coating), these parts can achieve optical clarity comparable to cast acrylic.
In addition to SLA 3D printing, we offer various other services:
