3D printing stocks are ripping higher a day after Stratasys (SSYS) delivered a Q1 EPS beat, and hours before ExOne (XONE) posts its own Q1 report. DDD +8.4%. SSYS +7.9%. XONE +6.9%. CIMT +4.1%. Canaccord and Needham have raised their PTs for Stratasys today: Canaccord considers 2013 guidance conservative in light of management's gross margin comments, and Needham foresees improved operating leverage as Objet merger integration continues.