Realistic glass crack (Prank decoration)

This is a thin and lightweight 3D printable glass crack decoration designed to look like a realistic windshield or glass impact. The pattern mimics the radial fracture structure seen in tempered glass after a stone chip impact.

The model is designed to be very thin, allowing it to sit flush against glass surfaces like windows, mirrors, windshields, or even glossy appliances. When placed on glass, the light reflections and transparency make it look surprisingly realistic.

This makes it perfect for:

-fun prank decorations

-Halloween props

-movie or photography props

-creative home decoration

-car show or display props

Because the structure is very thin, the model prints quickly and with minimal material.

Printing Settings

Recommended settings:

Layer height: 0.2 mm

Walls: 1

Infill: 0-15%

Supports: Not required

Recommended materials:

PLA (easy printing)

PETG (slightly more flexible) one in the pics is printed on petg cr transparent.

TPU (for a flexible sticker-like version)

Transparent, translucent, white or light gray filament works best to simulate cracked glass.

Installation

The decoration can be attached to glass using:

small pieces of double-sided tape, clear adhesive putty, or a tiny drop of removable glue

Because the model is thin and lightweight, only a small amount of adhesive is needed.

Notes

This model is intended as a decorative prop only and does not damage glass surfaces.

Realistic glass crack (Prank decoration)

0.16mm layer, 2 walls, 15% infill