ESP32 Gadget 3D Enclosure Design

Project Title: 3D Enclosure Design for ESP32 Desktop Companion (FDM 3D Printing) Hello, I need a custom, clean, and rigid 3D printable desktop enclosure for an ESP32 retro display gadget. The design must be optimized for FDM printing (2-part design: Front Main Body + Screw-on Back Cover). I have all the specific component links so you can use exact CAD dimensions: Components & Exact Links: 1. Display: 2.4" TFT LCD ST7789 (320x240) SPI module Link: https://www.amazon.in/Autables-Display-Interface-Compatible-Raspberry/dp/B0HCCRVP7D 2. Microcontroller: ESP32 DevKit V1 (30-pin, USB-C version) 3. Mainboard: Double-sided prototype perfboard, exactly 70 mm x 50 mm 4. SD Card Reader: Standard Arduino SPI SD card shield module Link: https://elektroweb.pl/pl/czytniki-kart-pamieci/115-modul-czytnik-kart-sd-arduino-shield.html 5. Rotary Encoder: EC11 Rotary Encoder with push-button (Shaft L=15mm, threaded bushing M7) Link: https://allegro.pl/produkt/impulsator-enkoder-20-impulsow-ec11-l-15mm-63c7dad8-dca6-4d76-9dca-d3db5a9f9c20 6. LED Matrix: 2x2 WS2812B RGB NeoPixel module Link: https://www.androegg.de/shop/ws2812-rgb-led-matrix-module-1x1-2x2-5x5-8x8-entwicklerplatine/ 7. Buzzer: Standard 12mm passive buzzer (TMB12A05 / 12x8.5mm) 8. Power Switch: Mini slide switch SPDT (SS12D00 / SS12F15) on the side wall Key Design & Mounting Requirements (NO LOOSE / RATTLING PARTS): - Mainboard Mounting: The 70x50 mm board will sit inside on 4 corner screw standoffs (M2 or M2.5). The ESP32 and buzzer will be soldered onto this board. - Free Space Reserve: Please ensure there is some vertical clearance (approx. 10-15mm) above the empty section of the 70x50mm PCB for future expansion (e.g., adding a small microphone module). - Display Mounting: The 2.4" screen must be securely seated in a front recessed frame with rear retaining brackets/screws so it cannot push inward or rattle. - Rotary Encoder: Mounted through a 7.2mm hole on the front/side panel. Wall thickness at this spot must be 2.0 mm so the EC11 brass nut can easily thread on from the outside. - LED Matrix Window: Dedicated internal slot holding the 2x2 LED module behind a small square/round front aperture (a 0.6mm thin diffuser wall or simple window). - Ports & Openings: * USB-C cutout aligned with the ESP32 port so standard cables plug in fully. * SD card slot cutout for easy insertion/removal of the SD card. * Sound grille (pattern of small perforation holes) for the buzzer. * Side slot cutout for the mini slide switch toggle. - Closure: Back lid fastened with 4 screws (M2.5 or M3, designed for brass heat-set threaded inserts or self-tapping). Deliverables: - Print-ready high-resolution .STL files. - Fully editable source .STEP / .STP files. - Assembly preview render / images.