StereoLithography
StereoLithography rapid prototypes are generated directly from 3D CAD data in a matter of hours without drawings, tooling, or machining. The prototypes are used to visualize and verify your design.
StereoLithography Process
The process begins with a 3D CAD/.stl file. The file is digitally sliced into a series of parallel horizontal cross-sections which are then provided to a StereoLithography Apparatus (SLA) one at a time. A laser traces the cross-section onto a bath of photopolymer resin solidifying the cross-section. The part is lowered a layer thickness into the bath and additional resin is swept onto the surface. The laser then solidifies the next cross-section. This process is repeated until the part is complete. Most parts are completed in a matter of hours, thereby defined as "Rapid Prototypes".
Applications of StereoLithography Models
Conceptual Models for Engineering and Marketing
- The prototype is used to physically explain a design. A picture or drawing can lead to a lot of questions, but a prototype in your hand can bring about many ideas.
Accelerate Design Process
- Aquiring prototypes quickly allows the designer to achieve more design iterations allowing more creativity in a shorter design cycle.
Verification of Form, Fit, and Function
- The prototype is used to geometrically verify clearances, functionality, and to detect errors. The prototypes are generated so fast that it allows the designer to physically check the design, improve it, and do it again.
