This paper is described about the polymer robot mechanisms, for examples, a 2DOF (degrees-of-freedom) pantograph mechanism and a 3DOF planar parallel mechanism for new surface mount system in one room factory. First, the displacement characteristics, the relationship between frequency and positioning accuracy, etc. are discussed about a polymer-made 2DOF pantograph mechanism, and its application is shown. Second, the dynamic displacement of output link, the result of the impact test, etc. are discussed in experiments about a polymer-made 3DOF planar parallel mechanism, and its application is shown, where in this study, 2DOF XY direction motion is discussed. In the results, the displacement characteristics of polymer-made robot mechanisms proposed in this research became clear.