Nuki Door Sensor Adapter – Door Overhang Mount

Nuki Door Sensor Adapter Box – 11mm Spacer for Protruding Doors

🇬🇧 English

If you own the Nuki Door Sensor but your door isn't flush with the frame, the original mounting doesn't work properly — sensor and magnet can't align correctly, and detection becomes unreliable.

This adapter box holds the Nuki Door Sensor securely while bridging an 11 mm door overhang, restoring full and reliable functionality. 🔧

The Problem

The Nuki Door Sensor is designed for doors that sit flush within their frame. If your door protrudes from the frame (common with older doors, certain construction styles, or after renovations), sensor and magnet are misaligned and the door state isn't detected reliably.

The Solution

This adapter box:

• Holds the Nuki Door Sensor securely in place
• Compensates for an 11 mm door overhang
• Accounts for ~0.5 mm of double-sided mounting tape
• Keeps sensor and magnet properly aligned
• Clean, unobtrusive design

How It Works ⚙️

• The Nuki Door Sensor is inserted from the top and clicks firmly into place
• Important detail: The reset/pairing button on the back of the sensor is pressed exactly as in the original mounting — full functionality is preserved ✅
• Removable: To take the sensor out, simply push it from the bottom — no glue, no damage, fully reversible
• Mounting to door/frame via double-sided tape (~0.5 mm)

🛠️ Need a Different Size? — I'll Adjust It for You!

This design is parametric — the spacer height can be adjusted for any door overhang. If 11 mm doesn't fit your door:

➡️ Leave a comment with your overhang measurement and I'll happily upload a customized version. Just let me know:

• Exact overhang in mm
• Mounting tape thickness (if not standard 0.5 mm)

Compatibility

• ✅ Nuki Door Sensor (current model, purchased 2025)
• ❓ Older Nuki Door Sensor (first generation): not tested — dimensions differ

Print Settings (what worked for me)

• Material: PLA ✅
• Infill: 15–20 % (no high load)
• Walls/Perimeters: 2
• Layer height: 0.16–0.20 mm
• Supports: Not required ✅
• Orientation: as preset in the 3MF file

💡 Material tip: PLA works fine indoors. If your door is exposed to direct sunlight or high temperatures (e.g. a south-facing entrance), consider PETG or ASA for better heat resistance.

Files Included

• .3mf – ready-to-print with my tested profile
• .stp – STEP file for full customization

⚠️ Disclaimer

This is a 3D-printed accessory and not an official Nuki product. "Nuki" is a trademark of Nuki Home Solutions GmbH — this design is not affiliated with, endorsed by, or supported by Nuki. Compatibility is based on my personal testing only. Use at your own risk.

🇩🇪 German

If you own the Nuki Door Sensor but your door is not flush with the frame, the original mounting does not work reliably — sensor and magnet cannot align correctly, and door detection becomes unreliable.

This adapter box securely holds the Nuki Door Sensor while bridging an 11 mm door overhang, restoring full and reliable functionality. 🔧

The Problem

The Nuki Door Sensor is designed for doors that sit flush within their frame. If your door protrudes (common with older doors, certain construction styles, or after renovations), the sensor and magnet are misaligned and the door state is not detected reliably.

The Solution

This adapter box:

• Holds the Nuki Door Sensor securely in place
• Compensates for an 11 mm door overhang
• Accounts for ~0.5 mm of double-sided mounting tape
• Ensures correct alignment of sensor and magnet
• Unobtrusive, clean design

How It Works ⚙️

• The Nuki Door Sensor is inserted from the top and then sits firmly
• Important detail: The reset/pairing button on the back of the sensor is pressed exactly as in the original mounting — full functionality is preserved ✅
• Removable: To take the sensor out, simply push against the sensor from below — no gluing, no damage, fully reversible
• Mounting to door/frame with double-sided tape (~0.5 mm)

🛠️ Need a Different Size? — I'll Adjust It for You!

The model is parametric — the spacer height can be adjusted for any door overhang. If 11 mm does not fit your door:

➡️ Leave a comment with your measurement and I will gladly upload a customized version. Please specify:

• Exact overhang in mm
• Mounting tape thickness (if not standard 0.5 mm)

Compatibility

• ✅ Nuki Door Sensor (current model, purchased 2025)
• ❓ Older Nuki Door Sensor (1st generation): not tested — dimensions differ

Print Settings (what worked for me)

• Material: PLA ✅
• Infill: 15–20 % (no high load)
• Walls/Perimeters: 2
• Layer height: 0.16–0.20 mm
• Supports: Not required ✅
• Orientation: as preset in the 3MF file

💡 Material tip: PLA works fine indoors. If your door is exposed to direct sunlight or high temperatures (e.g. a south-facing entrance), I recommend PETG or ASA for better heat resistance.

Files Included

• .3mf – ready-to-print with tested profile
• .stp – STEP file for your own adjustments

⚠️ Disclaimer

This is a 3D-printed accessory and not an official Nuki product. "Nuki" is a trademark of Nuki Home Solutions GmbH — this design is not authorized or supported by Nuki. Compatibility is based solely on my own tests. Use at your own risk.

License: CC BY-SA 4.0 – Remix it, keep it free. 🛠️