CYD ESP32-2432S028R New Case: Parametric, Screw-less, Support-free, with Stylus Storage

cyd2usb 2026 Fully Revamped Edition: Fully Parametric, Screw-Free, Support-Free Design, with Stylus Storage

Since the release of the original cyd2usb enclosure last year, I have received a lot of community feedback. After nearly half a month of redesigning and refining, the **2026 brand new version** is finally released! This is not just an aesthetic upgrade, but a complete evolution from structure to function, aiming to provide the perfect protection solution for CYD (Cheap Yellow Display)

✨ Design Highlights

• Ultra-smooth Snap-fit Design: Pure high-precision snap-fit structure. No screws, no glue, only printed parts are needed for assembly. Smooth opening and closing with a tight fit, providing an excellent assembly experience
• Truly Support-Free: Through clever 45° chamfers and a split-body design, it completely avoids overhangs. Not only does this save material and time, but it also ensures perfect print quality on all surfaces
• Modern Industrial Aesthetics: Newly designed rounded corners and chamfers. A more premium look, a warmer and smoother feel in hand, saying goodbye to sharp edges
• Upgraded Structural Strength: Elaborately designed internal support pillars, a more stable base, and more precise module insertion and positioning
• Split Modular Logo: Supports printing Logo labels independently. When you flash different firmware to your CYD, you only need to print a separate Logo patch for easy replacement, without reprinting the entire enclosure
• Compact Stylus Storage: A stylus slot is integrated into an extremely limited space. Locks in when inserted, preventing loss
• Full Interface Coverage: Perfectly compatible with all CYD I/O interfaces, each tiny component has its exclusive custom hole

⚙️ Powerful Parametric Design

Due to the numerous hardware versions of CYD, there are significant size discrepancies between versions, and even different batches of the same version have variations. The new version adopts a **fully parametric solution**, **allowing you to thoroughly customize it according to your hardware details**:

• Basic components: Optionally print the bottom case, top case, or stylus holder, supports custom total case height
• Logo Customization: Toggle Logo on/off, supports split printing, customize text content, font size, and position
• Interface Switch: Freely enable/disable holes for speaker, temperature and humidity, light sensor, MicroUSB, UART, SD card, extended IO, etc
• Precise Calibration: Customize display screen and PCB thickness, **supports left-right screen displacement compensation** (solves the problem of screen misalignment during installation)
• Lighting Effect Optimization: A light shield designed specifically for WS2812 LEDs, prevents internal light leakage

Customization Suggestions:

The default printable models provided are adapted for GUITION and HW457 CYD mainboards, all interfaces are open, and the default customization parameters are as follows

1. Suitable for HW458 board size, default screen thickness 3.6mm, PCB thickness 1.2mm, screen left side distance 8.6mm
2. Suitable for GUITION board size, default screen thickness 4mm, PCB thickness 1.6mm, screen left side distance 8.6mm, please refer to the image below, other boards must be customized according to their specific dimensions:

Refer to the image below: Subtle differences between GUITION and HW458, their UART interfaces have a 2mm offset, and the screen thickness and PCB thickness are also different

🖨️ Printing Recommendations

• Filament: Recommended to use PLA or PETG
• Layer height: 0.2mm (to ensure snap-fit accuracy, higher is not recommended)
• Supports: no supports
• Infill: 15% - 20%