A simple, snap-together 3D printed case for the BLE caberQU cable tester. This case is designed for the version of the device without an official case option.
The BLE caberQU is a compact cable tester that can test USB-C to USB-C cables for functionality, charging power, data speed, and cable health. It provides quick readings through its digital display that shows:
- Maximum data transmission speed
- Maximum power capability
- Overall cable health percentage
- No screws required: All parts snap together for easy assembly
- Minimal design: Maintains the compact form factor of the device
- Access protection: Covers the device while keeping all ports and buttons accessible
- Print-friendly: Designed to be printed on most consumer 3D printers without support material
- Layer height: 0.2mm
- Infill: 20-30%
- Material: PLA or PETG
- Supports: Not required (design is support-free)
The case consists of four parts:
- Top cover
- Bottom cover
- Buttons
- Button assembly clip
All parts are designed to snap together along the edges. The alignment features ensure a proper fit and secure connection.
- Print 1 of all parts with the recommended settings (4 buttons needed)
- Remove any stringing or artifacts from the prints
- Place the bottom cover on a flat surface
- Carefully place the BLE caberQU device into the bottom cover, ensuring all ports align with the openings
- Gently snap the LCD into the recess on the top frame
- Align the top cover and press down firmly around the edges until it snaps into place
- Align the button assembly clip and press down firmly around the edges until it snaps into place
- Check that all buttons are freely accessible and the display is clearly visible
This case was designed with simplicity in mind. The snap-fit mechanism provides a secure connection without the need for additional hardware. The tolerances are set to allow for slight variations in printing while ensuring a firm fit.
If you encounter difficulty with the snap-fit, you can:
- Slightly increase the tolerance in your slicer
- Gently heat the parts with a heat gun (be careful not to deform the plastic)
- Use a small file to adjust the interlocking features
This case was designed using FreeCAD, the open-source parametric 3D CAD modeler. FreeCAD allows for precise modeling and adjustment of tolerances to ensure proper fit and function of the case components. The source files can be modified in FreeCAD if you need to customize the design for your specific requirements.
This project is licensed under the MIT License - see the LICENSE file for details.
If you have suggestions for improvements or encounter any issues, please feel free to open an issue or submit a pull request.
This case is not affiliated with or endorsed by caberQU. It is designed as a third-party solution for users who want to protect their device without using the official case option.



