Feed and align microparts on symmetrically vibrating saw-tooth surface

This paper proposed a model to simulate microparts feeding and an alignment method to conduct microparts following a desired path. On the model aspect, we considered the effect of surrounding fluid the feeding velocity. The attained results show that the model with fluid drag predicted well the behavior and magnitude of the feeding velocity in comparison with experiment data, while the model without fluid drag overestimated the feeding velocity. It implied that fluid plays an important role in the motion of the sub-millimeter microparts. In addition, a simple method to align microparts following a desired path on symmetrical vibrating surface was proposed.