cup holder insert 3d model

Create a straight‑walled cylindrical cup‑holder insert, 74 mm outer diameter and 88 mm tall, with 4 mm thick outer wall and 4 mm thick internal divider walls. The top is divided into three rectangular compartments: two adjacent 57 mm × 40 mm inner‑size compartments and one 20 mm × 40 mm inner‑size compartment on the right. All walls are vertical and unfilleted. The bottom is a 4 mm thick solid plate with five evenly spaced circular drain holes in a ring at the center and four curved raised pads around the perimeter, as in a typical drain‑through base. No chamfers, no rounding, no decorative features—pure functional geometry.