3D scanning shiny objects can be a challenging task due to their reflective surfaces. A reflective or shiny object reflects light which distortions in the scan or the surface of the object not picked up altogether. With the right techniques and equipment, achieving successful scans is absolutely possible. Here’s how:

Preparation is Key: Before scanning, ensure the object is clean and free from any dust or smudges that could interfere with the scanning process. This also ensures that you are capturing the dimensions of the surface correctly.

Optimal Lighting: Proper lighting is crucial for 3d scanning shiny objects. Use diffused or indirect lighting to minimize harsh reflections. Avoid direct light sources that could create hotspots on the object’s surface.

Use a Matte Spray: Probably the most important of all. Applying a matte spray specifically designed for 3D scanning is the best solution to reduce surface reflectivity, making it easier for the scanner to capture accurate data.

There are 3D scanning sprays available in the market which are specifically designed for 3D scanning. They form a layer of between 3 microns to 6 microns depending on the product and brand. Most of them are  cyclododecane based self-sublimating/vanishing/disappearing types which evaporate between 1 hour to 24 hours. The more economic ones form a matt layer and can be brushed or washed off. Here are a few 3D scanning sprays.

ATTBLIME – Layer thickness 3-6µm

AESUB – Layer Thickness 8-15µm

The other alternative is to use antifungal powder spray or dust chalk or talcum powder on the reflective surface but the layer of the spray or dust on the surface is much thicker than the above sprays. Use them if you don’t need highly accurate scans. These are also very troublesome to clean and can only be used on watertight objects.

Angle Adjustment: This is relevant more for scanners with a turntable and fixed position. Experiment with the angle of both the object and the scanner to find the optimal position that minimizes reflections. 3D Scanning the object from multiple angles can provide better results. For handheld light scanners like Artec scanners, make sure that your scan angle is right not to capture reflections from the camera.

Post-Processing Techniques: After scanning, utilize post-processing software to refine the scan and eliminate any artifacts or imperfections caused by reflections. Techniques such as mesh smoothing, and surface reconstruction can help improve the overall quality of the scan.

Calibration and Testing: Regularly calibrate your 3D scanner to ensure accurate and consistent results. Perform test scans and adjust the scanner settings like light intensity and captured frames per second on different shiny objects to fine-tune your scanning techniques and settings.

Patience and Persistence: 3D scanning shiny objects can be a trial-and-error process. Don’t get discouraged if you encounter difficulties initially. With practice and persistence, you’ll improve your skills and achieve better results.