In one aspect, composite build materials for use with a 3D printing system are described herein. The torque sensor further includes first and second waveform selecting parts, first and second peak detectors, a first differential amplifier, and a first voltage-current converter. A nonconductive viscous liquid is located between the fingers for damping motion of the movable electrode relative to the fixed electrode. For example, while utilizing the gaming machine, a player may receive, e-mail, stock quotes, news and advertising that is of particular interest to the player utilizing the gaming machine. A diagnostic system automatically analyzes the test data to identify a characteristic of a component fabrication process by recognizing a pattern in the test data and classifying the pattern using a neural network. A determination is made as to whether the number of connection failures satisfies a threshold.