The replicator is here. Researchers have developed a new technique to 3D print entire objects in one go, by solidifying liquid resin with projected light. The printer works by sending a laser through the translucent gel – either a biological gel or liquid plastic, as required. “It’s all about the light,” explains Paul Delrot, Readily3D’s CTO. “The laser hardens the liquid through a process of polymerization. Depending on what we’re building, we use algorithms to calculate exactly where we need t