Freezer-Charged Can Cooler

Built for hot days and cold drinks, this freeze-fill can holder turns a simple beverage into a long-lasting chilled experience. Just add water, freeze, and enjoy hours of extra cooling power at the pool, beach, campsite, or backyard. A practical, reusable upgrade to standard koozies—designed for real outdoor use and optimized for strength with PETG/ASA/ABS. If you’re looking for a functional print that stands out in summer contests, this is it. 🧊 How It Works Simply fill the internal chamber with water and place it in the freezer. The frozen water acts as a thermal mass, slowing heat transfer and keeping your beverage cold far longer than foam or neoprene koozies. ⚠️ Important: Only fill the chamber to about 75% full to allow room for water expansion as it freezes. This prevents cracking or damage to the print. 🧵 Recommended Printing Materials For best performance and durability in outdoor environments: PETG (recommended balance of strength, ease, and weather resistance) ASA (best UV and outdoor durability) ABS (strong and heat resistant, good for repeated freezing cycles) PLA is not recommended due to poor heat resistance and UV degradation outdoors. ⸻ 🌞 Features 3D printable freeze-fill cooling system Reusable and eco-friendly alternative to disposable ice cups Designed for standard beverage cans (12oz) Great for outdoor and summer use Strong, functional, and easy to print design Optimized for long-lasting cold retention