K3NG Box remix for Nextion NX4024K032

Modified enclosure for a K3NG-based controller, converted from the original 5" Nextion display cutout to a 3.2" Nextion Enhanced (NX4024K032) display.

This is a remix of the original K3NG box: the large 5" screen window and its mounting holes on the rear panel have been closed off, and a new opening sized for the 3.2" module has been added, along with four correctly-spaced mounting holes.

What changed

• Old 5" window (≈119.6 × 78.7 mm) and its 4 mounting holes filled flush with the wall

• New display window 81.7 × 48.4 mm (sized on the module's visible area + clearance), horizontal orientation, centered

• 4 × Ø3.4 mm mounting holes at the official NX4024K032 spacing (88.6 × 41.2 mm)

• All other dimensions unchanged (216 × 136 × 100 mm), model is watertight and print-ready

Print settings (suggested)

• Material: PETG recommended (better heat/UV resistance for an electronics enclosure), PLA also fine

• Layer height: 0.2 mm

• Walls: 3–4 perimeters

• Infill: 15–20%

• Supports: only needed for the connector/button openings depending on print orientation

Notes

• The window is a clean through-cut with no rebate/lip. If you need a recessed step or standoffs for the display bezel, adjust before printing.

• Mounting-hole positions were derived from the official Nextion dimensional drawing — please verify against your actual module with calipers before final print.

Designed for the Nextion Enhanced NX4024K032 (3.2"). Not tested with the Basic T032 variant, which has different active-area and hole dimensions.