A drink cooler… that opens and closes by itself? Yes — and it’s awesome. This one for 16floz Tallboy cans.

The DrinkColder is a functional, mechanical, and totally novel 3D-printable drink holder and passive cooler designed to automatically open and close based on the weight of your beverage. No motors, no springs — just smart geometry, precision balance, and gear-driven magic.

An IceCozy freezer pack for the DrinkColder is available here... https://than.gs/m/1364094

Why You’ll Love It This is more than a drink holder — it’s a conversation starter, a mini engineering demo, and a satisfying desktop toy all in one. Whether you’re hosting a backyard BBQ or just need a cool way to store your LaCroix at work, DrinkColder delivers form, function, and fun.

What Makes It Special Self-Closing Iris Lid – When you place your beverage can inside, the lid closes around it. Press down on the DrinkColder top and the lid opens as your drink rises up. It’s all mechanical. Desktop Engineering Toy – Beyond just function, it’s fun. Watch people’s faces as they figure it out.
Print-Perfect Design – Designed to print support-free, with one built-in removable brim to ensure successful printing. Great Conversation Piece – On your BBQ table, patio, or even your office desk.

Features

• Fits standard 473ml (16oz) cans
• Includes optional cozy insert or TPU ice ring mould to keep your drink extra cold
• Uses internal counterbalance and gears for motion — no electronics
• Designed for PLA with no supports required
• Visual assembly guide included
• Dimensions: 114mm x 114mm x 202mm (4.5” x 4.5” x 8.0”)
• Top iris opening: 70mm diameter

Tips for Best Performance

• Use light lubrication at rotating joints
• Deburr sharp edges after printing

Related Links

IceCozy freezer pack for the DrinkColder... https://than.gs/m/1364094

DrinkColder (12floz)... https://than.gs/m/1359926

Shaded Drink Coasters… https://than.gs/m/1109920

Compliant Beer Holster… https://than.gs/m/1002137

Gimballed Wine Holster… https://than.gs/m/1066121

Visit my blog for more details and other designs https://www.logicalplanet.com/

Revisions and Updates I occasionally update and revise my designs. When I do, I’ll document the changes here. Check back periodically for the latest revision notes or if you’re experiencing any issues with a model.