A tape recording and reproduction apparatus includes a post base with a tape guide post, a leaf spring member pressing the post base against a post base catcher, and a leaf spring member control part. The dividing members may have at least a portion being of an electrically conductive material and others may have conductive material layers adjacent thereto. This approach greatly reduces the complexity of any downstream solid modeling applications that perform combinatorial surface operations on the geometric representation of the series of sub-parts to analyze physical characteristics such as radiation, mechanical, optical, thermal, structural or biological of the original part. Information of a holder class instance already generated in association with all of the predetermined measures of the scheduled mounting position is changed only when the mounting schedule is implementable, and a physical class instance associated with the holder class instance is generated.