Insulated Beer Can Holder

A printed can holder keeps your hand dry and the can cold, but only if you get the air gap right. Solid walls conduct heat almost as fast as a bare hand — the insulation comes from a double wall with trapped air between the layers.

Fits: 330 ml and 500 ml standard cans

Make this one yours. Cadio generates it to your measurements — change the size, slot count, or angle by describing what you need.

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Key dimensions

Inner diameter	66.5 mm — standard can is 66 mm
Height, 330 ml	115 mm
Height, 500 ml	168 mm
Wall thickness	2 mm outer, 1.6 mm inner
Air gap	4 mm between walls

Print settings

Material	PETG — handles condensation and a hot car better than PLA
Layer height	0.2 mm
Walls	3 perimeters
Infill	0% — the air gap is the whole point
Supports	None
Orientation	Base on the bed, opening up

What actually matters

Use 0% infill in the double wall. Filling it destroys the insulation and you have printed a heavy cup.
Measure your cans. Standard is 66 mm but slim and imported cans differ, and a holder that grips too tightly will not come off.
PETG over PLA if it lives in a car. PLA softens around 55 °C and a parked car reaches that easily.

Questions

Does it fit both 330 ml and 500 ml cans?

The diameter is the same; only height differs. A 500 ml can sticks out of a 330 ml holder but still grips — generate the taller version for full coverage.

Is printed plastic safe around drinks?

The holder only touches the outside of the can, so it is fine. Never print something the drink flows through — layer lines trap bacteria.

Need it in a different size, or with more slots?

Generate your version →