Issue link: https://resources.pcb.cadence.com/i/1541046
II. PLACEMENT, FLOORPLANNING, AND MECHANICAL INTEGRATION OrCAD X 3D viewing is part of the PCB Layout environment and lets you visualize your printed circuit board as a full 3D model. It bridges the gap between electrical and mechanical design, making it easier to verify, fit, form, and assemble before fabrication. 8. Including Mechanical References Early in the PCB Layout Mechanical boundaries define what's possible in PCB layout, regardless of how elegant your schematic is. Board outline, mounting holes, keepout regions, cutouts, connector alignments, and enclosure features all dictate where parts and traces can (and can't) go. Skipping or delaying mechanical references leads to components that don't fit, connectors that miss panel cutouts, blocked mounting holes, and costly board spins to fix what could have been resolved up front. A good mechanical definition is foundational for fit, function, reliability, and manufacturability. When And Where To Apply Establish all mechanical boundaries before you start placing parts or routing traces. This includes at project kickoff, whenever the enclosure or system requirements change, and after any significant mechanical or industrial design update. Always import or verify mechanical references immediately after importing your schematic and before touching the layout.