Cap sleeve for Ernesto thermo
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Replacement cap sleeve for Ernesto thermo (Lidl). Easier battery access for thermometer lid.
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- Printables
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- Other House Equipment
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- Creative Commons — Attribution
Ernesto Smart Thermos Cap Sleeve (Lidl) – Battery Access Replacement
This is a 3D-printed replacement sleeve for the Ernesto smart thermos sold by Lidl, which features a digital thermometer integrated into the lid.
The original cap uses a press-fit metal cover that must be removed in order to access the battery. This process is usually difficult and risks damaging the original piece.
This printed sleeve replaces the metal cover, making battery replacement much easier, while preserving the lid’s functionality and appearance. The fit is tight enough to stay in place, but designed to allow easier removal without tools.
🛠 Print Settings
- Technology: FDM
- Material: PLA or PETG recommended
- Supports: Not required
- Layer height: 0.2 mm
- Wall thickness: 1.2 mm or more for durability
- Infill: ~20%
📂 Included Files
ThermoTopSleeve-Cuerpo.stl: ready-to-print modelThermoTopSleeve.FCStd: FreeCAD source file for easy customization
💡 Notes
- You can tweak the inner diameter in the FreeCAD file to better match your thermos.
- Tested on the standard Ernesto thermos from Lidl (with digital temperature display).
- Designed to snap on without glue or tools.
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