Smart Home ESP32 / ESP8266 Case

Parametric 3D printable enclosure for ESP32 / ESP8266 projects, ESPHome devices, Home Assistant sensors and DIY smart-home electronics.

⚙️Features

• Custom board size
  • Default: 51.6 × 28.4 × 1.6 mm
  • Width: 25–38 mm
  • Length: 40–70 mm
  • Thickness: 0.8–2 mm
• Custom case dimensions
  Internal height needs to be heigher or equal 18mm to have antenna holes
• USB-C and Micro-USB support
• 0–2 antenna openings
• Adjustable cable opening: 2–14 mm
  The cable opening is automatically limited if the selected internal case height is too small.
• Snap-fit board mounting
• Snap-fit case assembly
• Space for sensors and jumper wires
• Functional push buttons
• Ventilation openings

🧱 Mounting Options

• Snap-fit wall mount
• 4 mm screw mount
• Skadis mount

🛠️ Included Tool

• Lid opener for opening the case and removing the board

🚀 Latest Updates

• 2026-07-22 – Version 2.2

  - Fixed several model-generation errors. Special thanks to @splittscheid for the feedback and testing.

  - Added the option to create a second antenna opening, based on a suggestion from @user_2564235662.

  - Added a customizable cable opening with a diameter from 2 mm to 14 mm (allows a PG7 hole).

  - Added new preview images.

• 2026-07-25 - Version 2.3
  - Added more space for the antenna
  - Fixed a generation error
   
• Uploaded a “Heltec LoRa 32 V4” Customize Print Profile
  (might work with “Heltec LoRa 32 V3” too)

📝 Development Note

This update required approximately one week of testing, troubleshooting, and rebuilding parts of the model in Fusion 360.

Because the case supports a large number of parameter combinations, several different design approaches were necessary to ensure that the model generates reliably across as many configurations as possible.

Should you encounter any issues with a specific parameter combination, please leave a comment with the settings you used. I will do my best to reproduce and fix the problem.

See also my other cases: