University of California, Santa Barbara, Santa Barbara, CA, US
Continuous 3-dimentional (3D) printing of multiple components simultaneously and selectively has not previously been possible. The Solution Mask Liquid Lithography (SMaLL) is an approach using readily available dyes to print components differing in chemical and mechanical properties simultaneously. Layer-by-layer 3D printing results in parts with anisotropic properties (e.g. mechanical properties that differ by orientation to the print). Continuous 3D printing overcomes this limitation and prints materials that have uniform mechanical properties. The only available form of continuous 3D printing currently is Continuous Liquid Interface Printing (CLIP). The CLIP process operates by balancing oxygen diffusion, photoabsorption, irradiation intensity, resin viscosity, and stage translation with an ultraviolet (UV) curing process to provide feature resolution and fast build-times of monolithic parts. The SMaLL is a newer approach that adds the ability to program multiple chemical compositions and mechanical properties (e.g., hard and soft) in a single part. Additionally, this technique provides rapid build rates, mild build conditions, as well as excellent resolution that outperforms state-of-the-art techniques. This technique allows for the rapid printing of multi-materials such as joints, truss structures, and soft exteriors covering hard interiors. These parts can easily be incorporated into products like shoe soles or be standalone devices.
Primary Application Area: Materials, Chemical
Technology Development Status: Prototype
Technology Readiness Level: TRL 5
Organization Type: Academic/Gov Lab
Showcase Booth #: 401
GOVT/EXTERNAL FUNDING SOURCES