Measurement/inspection toolmaker Perceptron (PRCP -12.5%) and injection molding/machining firm Proto Labs (PRLB +24.2%), two companies hyped as 3D printing plays (though some disagree about PRCP), head in opposite directions following their calendar Q4 reports. PRCP missed revenue estimates thanks to a 35% Y/Y drop in Americas sales, and is guiding for FY13 revenue to be roughly flat - the consensus is for a 5.2% increase. PRLB beat estimates and saw a 570 bps Y/Y increase in gross margin to 62.5%. CIMT +12.4%. XONE +5.5%. DDD +4.1%.