Diggester writes: 3D printing just keeps getting bigger and better. The latest prototype creates a cast by combining 3D printing and ultrasound pulses. This does not only make the cast comfortable to wear with plenty of space for air but it also looks cool. Most important of all, the cast catalyzes the process of healing! What gives the cast the ultra-speed recovering properties is the incorporation of Low-Intensity Pulsed Ultrasound (LIPUS) that is known to speed up regrowth of bones. Designer of the latest prototype, Deniz Karasahin is positive about the prospects of his new design and believes it will go a long way.