Generate a perfectly fitted, 3D-printable case for your Nextion (ITEAD) Nextion NX3224T024 2.4" HMI Touch Display. Verified 74.4x42.9mm base dimensions with Nextion is ~12mm total thickness; above-board covers the panel, below-board the UART header + microSD slot.
Nextion module integrates STM32 controller + display driver + storage; total dissipation ~0.5-1W. Passive convection through a conservative enclosure is adequate.
PETG is the default for HMI enclosures — good impact resistance for industrial applications. ABS extends thermal and chemical resistance for machine-panel installations. Both suit the Nextion's target market of industrial control and kiosks.
UART interface carries TTL 5V or 3.3V — verify level compatibility with the host MCU before designing a shared enclosure.
MicroSD slot is used for UI upload — leave accessible for field updates OR pre-flash before sealing.
Nextion UI assets are stored on the module, not on the host — the host only sends events/commands.
Four metal mounting tabs extend from the frame with pre-drilled holes (typically M3) — these are the intended panel-mount path. Nextion ships with hardware, but users frequently substitute stock M3 screws or standoffs from their own supply — provide hole clearance accepting a range of head types.
Mounting clips/screws should press on the PCB frame, not the glass — fracture risk on the display edge.
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Mechanical properties are estimates. Validate critical loads before use.