Bezel & Mount for 20x4 LCD Display with 16mm Switch Holes – Surface-Mount Enclosure for Panel Projects

Description:

This is a 3D printable bezel and mounting system designed for the standard 20x4 LCD module (HD44780-compatible, also known as 2004 LCD display). It features:

Precision cutout for 20x4 character LCD display

Two 16mm holes – ideal for panel-mount push switches (one on each side of the screen)

Flush surface-mount bezel – glue to any panel or enclosure

Snap-together design using the switch nuts for bezel-body attachment

Optional bottom cover – attach with M5 plastic or metal screws, or use glue/silicone for a permanent bond

Feet guide – add rubber feet (2mm or taller) for stability and to protect screw heads

Print Settings:

Orientation: Print the main body face down

Supports: Required only for bezel recess

Infill Density: 20%

Support Density: 20%

Material: PLA, PETG, or ABS

Assembly Instructions:

Solder your 20x4 LCD and insert it into the bezel.

Place the bezel over the main body.

Insert two 16mm push switches through bezel and body sides.

Secure switches with nuts – this locks the bezel and body together.

Optionally screw on the base with M5 bolts or glue/silicone it in place.

Add bump-on rubber feet (≥2mm tall) to the bottom for clearance.

Compatible With:

20x4 Character LCD Display (e.g. J204A, WH2004A, ERM2004, SunFounder IIC/I2C/TWI 2004 LCD)

16mm panel mount switches (momentary or latching)

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