After fabricating the first prototype of a monostable beam, I fabricated a bunch of prototypes of monostable beams with different mechanical properties this week. After the fabrication, I tested the monostability of these prototypes of a monostable beam. As a result of experiments, monostability was observed for six prototypes. However, only one prototype which has a higher Q (initial rise/ thickness) value than the maximum Q value that assures monostability was bistable, not monostable. These results show the correctness of the theory of the relationship of monostability and Q value. Next week, I am planning to measure the magnitude of the critical force that causes snap-through of a monostable beam and consider the accuracy of prediction of the magnitude of the critical force.