Last time I checked in with 3D printing startup Structur3D, its unusual paste-extruding machine was a mysterious white box that sat next to a 3D printer. It was capable of spitting out Nutella, cookie dough and inedible materials like silicone, but it wasn’t exactly clear how it worked. Now, the company has opened up the extruder, known as Discov3ry, to give us a more detailed view of how it works.
Discov3ry is compatible with any modifiable 3D printer. You connect the box with the printer via a tube. Inside the box, a syringe sits upright and a disk slowly pushes up on it, causing it to squeeze material into the tube.
When I visited Structur3D at Maker Faire back in May, the team was loading all kinds of materials into a Discov3ry prototype manually. That will still be an option for users, including those who backed it through the Kickstarter campaign