Take your favorite mug or bottle always with you with this parametric car cupholder? This parametric cupholder expander is designed to solve exactly that problem where your mug doesn't fit. It allows you to securely hold larger cups, bottles, or mugs—especially those with handles—while maintaining a snug fit in your car’s original cupholder.
🔧 Key Features
- Parametric design – Easily customize dimensions to match your specific car and cup size
- Tapered base – Ensures a secure fit in most standard car cupholders
- Handle cutout (optional) – Perfect for mugs with handles
- Thick, durable walls – Designed for stability during driving
Clean, minimal look – Blends nicely with modern car interiors
📏 Customization
- All important dimensions can be adjusted in OpenSCAD:
- Base diameter (top & bottom)
- Base height (depth inside your car’s holder)
- Cup diameter
- Wall thickness
- Handle cutout size
This makes it easy to adapt the model to different cars and drinkware.
🧱 Print Settings (Recommended)
- Layer height: 0.2 mm
- Walls: 3–4 perimeters
- Infill: 15–25%
- Material: PLA, PETG (recommended for heat resistance in cars)
🚗 Use Case
- Large reusable bottles
- Coffee mugs with handles
- Oversized takeaway cups
- No more unstable drinks or awkward balancing—just drop it into your cupholder and go.
💡 Notes
- For best fit, measure your car’s cupholder before printing
- Adding a small tolerance (±0.5 mm) is recommended
- PETG or higher-temp materials are preferred for hot environments
- If you make one, feel free to share your setup or improvements. I’d love to see how you customize it!
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