What it is and the problem it solves
It is stereolithography: an additive fabrication method that solves the problem of slow, expensive physical prototyping in product development.
How it works
It builds objects layer by layer by curing liquid photopolymer resin with ultraviolet light. It uses digital slicing to convert 3D models into thin horizontal cross-sections. It relies on the STL file format to encode surface geometry as a mesh of triangles.
What works
The SLA-1 reliably produces dimensionally accurate, smooth-surfaced plastic parts from digital files. The STL format remains universally supported across CAD and CAM software. Digital slicing and infill strategies are now foundational across all additive processes.
What does not
It does not produce parts with isotropic mechanical properties. It does not eliminate post-processing: supports must be removed and parts UV-cured and cleaned. It does not scale to mass production without significant labour or automation overhead.
What it changes
It shifts prototyping from weeks to hours. It decouples design iteration from tooling cost. It establishes digital-to-physical translation as a standard engineering workflow—not just for rapid prototyping but as a foundation for distributed manufacturing.
Is it worth your time
Yes—if you need functional prototypes, custom tooling, or low-volume production where traditional machining is too slow or costly. No—if you require structural strength, thermal stability, or high repeatability at scale.