Adjustable Car Cup Holder Expander - OWALA 32oz
Print Profile(2)
Bill of Materials
Description
This is an adjustable car cup holder expander designed to fit larger bottles and cups in standard automotive cup holders. The whole system is assembled with only one printed screw, making it simple, clean, and hardware-free. It uses a compliant radial spring mechanism with snap-fit interchangeable bumpers, allowing the fit to be adjusted for different original cup holder diameters. The holder supports bottles and cups up to 89 mm in diameter and was designed with the Owala 32 oz bottle in mind.
Highly recommended: print the spring in PETG.
Bumper options
| Bumper | Fit range | Notes |
|---|---|---|
| Bumper_A | 71 to 80 mm | Standard bumper for smaller cup holders |
| Bumper_B | 76 to 85 mm | Standard bumper for larger cup holders |
| Bumper_B_texture | 76 to 85 mm | Textured version for better grip |
| Bumper_B_EVA | 76 to 85 mm | Includes a slot for 20 × 5 mm adhesive EVA tape |
Print profiles
ALL PLA PARTS
For easier printing using only PLA.
ALL RECOMMENDED MATERIAL
For the best functional result, using material choices better suited for each part.
License
You may create derivative works based on this object, provided that all such derivative works are published exclusively on the MakerWorld platform and include proper attribution to the original creator. You may not share, upload, host, distribute, or publish this object—or any derivative work of this object—on any other digital platform, marketplace, or distribution channel. Commercial use of this object and any derivative works is strictly prohibited. This includes, but is not limited to, selling, renting, sublicensing, or using the object in any context in which you receive monetary compensation or other financial benefits.
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