Rapid printing of multimaterial objects by injection continuous liquid interface production

Continuous liquid interface production (CLIP) is a revolutionary approach to additive manufacturing (AM) that has begun to elevate the fabrication method from prototyping to production. However, significant limitations on the process derived from mass transport issues have, to date, limited printable areas at high speeds and the viscosity of resins used; moreover, printing with composites and multiple materials at once has been heretofore impossible. Here, we investigate the fundamental mass transport physics underlying these limitations, and correlate the experimental and simulated results to real print outcomes. Then, we introduce a new hybrid AM method that helps overcome these restrictions by taking active mechanical control of fluid flow during printing: injection CLIP (iCLIP).

Figure 1a from the original CLIP Science Paper by Tumbleston et al (2015)