July 13, 2025
Description
This adapter fits into the interface located in the headrest of the Smart ForFour, allowing for easy attachment of accessories such as smartphone mounts or other holders.
Features:
Perfect fit for Smart ForFour headrest interface
Easy installation without tools
Versatile use, e.g., smartphone holders, tablet holders, or other accessories
Stable design optimized for 3D printing
Prepared for embedding threaded inserts (M3x4.8x5.0)
Recommended print settings:
Material: PETG or ABS recommended (PLA possible but may deform at higher temperatures in summer)
Layer height: 0.2 mm
Perimeters: 4
Infill: 30–50%
Supports: not required
Assembly:
Simply insert the adapter into the existing headrest interface on the seat. Then attach any desired holder using the embedded threads.
Application examples:
License:
Creative Commons — Attribution — Noncommercial — Share Alike
9
Micha
