A perforation tool comprises an explosive charge comprising an explosive focal axis, a tool body containing the explosive charge, and a flowable material carried with the tool and disposed along the explosive focal axis. The 3D feature detection module processes 3D surface map of a biometric object, wherein the 3D surface map includes a plurality of 3D coordinates. Rotation is governed by a 4:3 hypocycloid function. Similarly, during loading operations, the loadunload mechanism lowers a substrate carrier into engagement with the conveyor while matching the horizontal speed of the conveyor. Such a composition is may be injection molded to form a nipple for feeding an infant, or a teething ring, or goggles for a diver, and the articles are sterilizable and recyclable.