The Chevy Suburban towing a U-Haul trailer pulled up to the decommissioned middle school in Metropolis, Illinois, population 6,000. A special kind of 4-H camp was about to begin. The four leaders—Gabriel Ewing, Jessica Nelson, Colten Jackson, and Virginia McCreary—unloaded the equipment: almost thirty laptops with Intel i5 processors; a thirty-watt mini laser engraver; six 3-D printers; six digital embroidery sewing machines; six electronic vinyl cutters; six soldering stations; and enough small-board electronics for up to a dozen participants to make mini robots out of puff balls.