JBL Tune 125BT Button Cover Replacement (PLA / TPU)
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Replacement button cover for JBL Tune 125BT earphones. Protects the PCB and restores button controls.
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Model information
- Source
- Printables
- Category
- Audio
- License
- Creative Commons — Public Domain
The soft silicone cover over the inline remote on the JBL Tune 125BT earphones degrades or tears off over time. This leaves the internal micro-switches and bare circuit board exposed to dust, sweat, and physical wear. This model is a snap/glue-on replacement button cap designed to protect the PCB while keeping all three control buttons (Volume +, Multi-function, Volume -) accessible.
Material & Filament Recommendations
TPU / TPE (Recommended): Printing in flexible filament yields a soft, springy button press with clean tactile feedback close to the original feel.
PLA (Functional Alternative): Fully protects the board and remains workable, but because PLA is rigid, pressing the buttons requires a firmer press.
Print Settings
Layer Height: 0.12mm – 0.16mm
Infill: 100%
Walls / Perimeters: 2–3
Supports: None
Rafts / Brim: None
Print Speed: 20–30 mm/s for TPU | 40–50 mm/s for PLA
Assembly Instructions
Clean away remnants of the old torn silicone using tweezers.
Wipe the housing plastic with Isopropyl Alcohol (IPA).
Align the 3D printed cover over the micro-switches and press into place.
Test clicking each button to confirm tactile feedback.
(Optional) Apply a tiny dot of super glue along the outer plastic lip to secure it permanently (keep glue away from the center switch stems).