Car Cup Holder Organizer Tray Insert — Parametric Adapter (No Supports)

An insert that drops into a car cup holder and adds a wider divided tray on top for coins, cards, keys and earbuds. - Cross divider keeps small items sorted; stem holds it steady in the holder - Prints flat with NO supports - Fully parametric OpenSCAD source — adjust stem and tray diameters to fit your holder Includes ready-to-print STL + editable .scad source.