pentagon case 3d model

Design a pentagon-shaped hard case for KZ Castor Pro in-ear monitors with a separate base and a pivot hinge lid. The case should be 3D-printable, compact, and protective, sized approximately 90 mm × 90 mm with a closed height of about 24 mm and 2.5 mm wall thickness, and all outer edges must be smoothly rounded and filleted (2–4 mm radius). The base should be a hollow shell containing two ergonomic molded pockets for the left and right IEMs and one circular center pocket for a coiled cable, with smooth internal fillets, about 2 mm clearance, IEM pocket depth around 9 mm, and cable pocket depth around 11 mm, plus small finger cutouts for easy removal. A raised inner dust-lip (about 1.2 mm) should run around the top edge of the base for alignment and sealing. The lid must match the outer pentagon profile, have a 2.5 mm shell thickness, include a shallow internal recess, and an inner groove to fit over the base’s dust lip. The lid and base should connect using a rear pin-style pivot hinge