3-D printed haptic devices for educational applications. - Melisa Orta Martinez; Tania K. Morimoto; Annalisa T. Taylor; Aaron C. Barron; J. D. Akzl Pultorak; Jeanny Wang; Agnes Calasanz-Kaiser; Richard Lee Davis; Paulo Blikstein; Allison M. Okamura (HAPTICS, 2016)