Sector67 is hosting the Wisconsin 3D Printing Camp on Saturday (July 21). The free “unconference” will focus on the emerging technology of 3D printing and bring together 3D printing enthusiasts from across the US. Participants who own 3D printers, or who have created cool products using them, are encouraged to bring them. And the unconference welcomes anyone else to join. Come for the whole day, or just part. More information is available here.