3D printing stocks haven’t seen the surge in popularity they once did — investors recognized that the sector is capital-intensive and, while the industry matures, low margin. But that’s beginning to change as the top 3D printing stocks pivot away from focusing on hardware and begin focusing on niche, targeted software to maximize existing hardware’s potential.Expected to hit over $50 billion by 2030, the 3D printing sector is rapidly growing even as investor attention shifts away from once-popular stocks. T ...