Snap-Fit Case for CrowPanel ESP32 E-Paper (2.13")

A precision-engineered, two-part protective enclosure for the CrowPanel ESP32 E-Paper HMI 2.13-inch. This design features a "sandwich" structure with a dedicated main body and a secure back cover, specifically optimized for the asymmetrical bezels of the 2.13" e-Paper display.

🛠 Key Features

• Tool-less Assembly: Features integrated pins with spherical locking joints. The case snaps together firmly without the need for screws or glue.

• Precision Alignment: Includes an internal alignment step (rim) to prevent the back cover from shifting and to ensure a dust-tight fit.

• Asymmetrical Bezel: Custom window dimensions ($6.0mm$ left, $8.0mm$ right) to perfectly frame the active area of the CrowPanel screen.

• USB-C Access: Perfect cutout for easy charging and programming without removing the case.

• Compact Footprint: Minimalist wall thickness ($2.0mm$) and slim front bezel ($0.8mm$) to keep the device pocketable.

🖨 Print Settings

• Material: PLA (recommended for the snap-fit tension) or PETG.

• Layer Height: 0.2mm is ideal for the pin tolerances.

• Supports: None required. The model is designed to be printed flat on the bed.

• Wall Count: 3 perimeters for stronger pins.

• Orientation: * Print the Main Body face down.

  • Print the Back Cover with the pins facing upwards.

📐 Technical Specifications (Based on OpenSCAD)

• Internal Dimensions: $66.0 \times 31.0 \times 12.5$ mm (plus gap).

• Wall Thickness: $2.0$ mm.

• Snap Tolerance: $0.25$ mm (designed for a firm, "click" fit).

🚀 How to Assemble

1. Place your CrowPanel module into the Main Body (ensure the screen is centered in the window).

2. Align the Back Cover so the USB-C cutout matches the board.

3. Press the four corners until you hear the pins "click" into place.