Modular Refillable 3-Can IcePack|Expandable Cooler

Keep three drinks cool with a pair of reusable, refillable ice packs designed specifically around standard beverage cans.

The shaped surfaces fit around three standard 330 ml cans, creating a compact and stable cooling bundle. The cans can be arranged either vertically or horizontally, making the system suitable for cooler bags, lunch bags, picnics, camping, road trips and outdoor activities.

Use both packs together to cool the cans from two sides, or use each pack separately wherever it fits best.

How to use:

1. Check the printed container for leaks before freezing.
2. Fill it partly with water.
3. Leave enough empty space for the water to expand when frozen.
4. Close the cap securely and freeze with the cap facing upward.
5. Place three cans between the two frozen packs.

Important:

• Designed for standard 330 ml beverage cans.
• Slim cans may fit more loosely.
• Do not fill completely — water expands when frozen.
• Leak-test each print with water before placing it in a freezer or cooler bag.
• The result may depend on the filament, wall count, flow calibration and overall print quality.
• Intended as an external cooling pack. Do not drink water stored inside.

The model is refillable, reusable and can be frozen again whenever needed. No supports are required.

Modular and Expandable

The minimum setup uses two cooling packs and holds three cans. Thanks to the matching shape on both sides, the system can be expanded: simply print additional packs and place another row of three cans between them.

This allows you to create larger configurations for 3, 6, 9 or more cans, depending on the available space in your cooler bag.

Refillable Freezer Ice Pack|Portable Cooling Block

https://makerworld.com/uk/models/2983090-refillable-freezer-ice-pack-portable-cooling-block

Slim Ice Stick Tray + Fan Mount

https://makerworld.com/uk/models/2986837-ice-tray-fan-cooling-mount-for-diy-cooling

Flat Refillable Ice Pack | Slim Cooling Block

https://makerworld.com/uk/models/2999041-flat-refillable-ice-pack-slim-cooling-block

my print-in-place designs: 👇