An exercise equipment frame, such as a power cage, is formed from uprights that comprise at least two sections that are telescopically interfit with one another. The stacked semiconductor device includes a first insulating interlayer having an opening that partially exposes a substrate, wherein the substrate includes single crystalline silicon, and a first seed pattern that fills the opening, wherein the first seed pattern has an upper portion disposed over the opening, and the upper portion is tapered away from the substrate. A resultant time-evolving system of nodes moves through a continuous location space in continuous time, and is used to derive placements of the morphable-devices having one-to-one correspondences with the nodes. A head driver is controlled according to the determined kind of the fed printing sheet.