BMW 3 Series F30/F31 Cupholder Dock for iPhone 8

A cupholder-mounted phone dock designed and physically demonstrated by the source creator for an Apple iPhone 8 in a BMW F31 cupholder; the source title also identifies the F30. The verified CC BY-SA 3.0 source archive contains one structurally valid printable STL and nine semantic images showing the printed dock, charging-cable routing, the empty cupholder fit and the phone installed in the center console. The printable geometry contains no BMW or Apple logo or wordmark. Compatibility is limited to the 3 Series F30/F31 cupholder interface and iPhone 8 dimensions; other phones, cases, BMW generations and cupholders are excluded. Reuse and adaptations must preserve attribution and the CC BY-SA 3.0 share-alike license.

Driver-safety warning: verify the exact F30/F31 cupholder and iPhone 8 dimensions, including any case, before use. Add non-slip padding as the source suggests, use cabin-heat-resistant material, secure the charging cable away from the gear selector and controls, and test retention under firm braking and cornering while parked or in a controlled area. Keep the device outside airbag paths and the driver's sightline, and never adjust or operate it while driving. Remove the dock if it rocks, softens, cracks, blocks a control or can release the phone.