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3D Printed Suncatcher Shines in the Light

Diffraction gratings create beautiful rainbow patterns when interacting with natural white light, and [audreyobscura] was familiar with their properties.  Thus, she set about producing an attractive 3D-printed suncatcher ornament that positively shines in the sun.

The design is straightforward, consisting of a 3D printed frame made of pieces glued together using QuickGrab glue. The pieces come together into a 7-segment star design, with a subtle 3D structure to it which helps add strength in addition to looking good.

Once assembled, sections of plastic diffraction grating are cut to size using a Curio desktop cutter. These are then glued into each segment of the star. While it’s possible to 3D print pieces with diffraction-grating like effects, using the film in this way allows light to pass through the suncatcher to create a more impressive effect.

On a cloudy day, the suncatcher looks almost entirely unassuming. However, when Earth’s nearest star shines, it projects glorious rainbows throughout the room, and letting it sway in the breeze lets the light play across the walls.

It’s a nice build, and a relatively easy ornament to make even if you’re new to 3D printing. We do like a good bit of decoration around here, especially if it’s a tiny version of a real TV. Video after the break.

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