By Steve Melendez

Most 3-D printers are great at turning designs into solid structures, but can only build with one or two types of solid plastic. But a newKickstarter campaign from Ontario-based Structur3D Printingoffers an aftermarket add-on letting common printers work with a wide variety of gel materials to produce everything from silicone-based orthotic shoe inserts to custom cake toppers printed from icing sugar.

Read the story, which contains an interview with Structur3D's co-founder Andrew Finkle.