3D imaging describes the process of using a 3D scanner to collect data from an object's surface to create a three-dimensional model. Depending on the 3D scanner, the data gathered can range from the shape of the object to capturing the color and texture of the surface. The image is captured most often using a camera with a line of laser light or flashing lights.
Pictured below is the rough data points from an object that was quickly 3D scanned using the Artec Eva.
The Artec Eva 3D scanner collects high resolution measurements of an object's surface through the combined efforts of flashing lights and a camera quickly and efficiently. The Artec Eva boasts a 16 Frames Per Second capturing speed, with the ability to capture up to two million points per second with 0.2 mm resolution. All you have to do is point and scan. The handheld scanner weighs 2 lbs and is easy to move.
This scanner works well for small and medium size objects, such as machine parts, furniture, and even a human body!
The NextEngine 3D Scanner captures high quality 3D scans in full color through the combined efforts of a camera and laser light technology. Attached to the scanner is a turntable to place the object on. As the scanner works, the turntable will slowly turn the object, which allows the scanner to capture all sides of the object.
This scanner is perfect to capture small objects with irregular dimensions.
Answer: This answer changes depending on which 3D scanner you want to use. The best way to learn how to use a 3D scanner is to watch the video tutorials listed above and to schedule an in-person consultation with MakerSpace staff. You can email us to set up an appointment at librarymakerspace@unc.edu.
Answer: There is no hard limit on the size of the object that can be scanned, but generally we can scan objects as small as computer hardware screws to as big as furniture or a human body.
Answer: Yes. If your object is shiny, transparent, or has a dark surface, it will not scan well. We have a special powder that we can apply to the surface to make it suitable for 3D scanning. It will not damage your object and is easy to clean off. There are also sprays you can buy that will prepare the object to be scanned. To learn more about pre-processing, check here.
Answer: Nope! 3D scanning is contactless and will not put any strain on your object.
Answer: The complexity of an object’s surface determines how long it will take to scan it and how accurate that scan will be. The 3D scanner might struggle to accurately capture the data of an object with complex surfaces, curves, or angles. Additionally, scanning a more complex object will increase the amount of time needed to fix the 3D model in post-processing. 3D scanning is not a quick process and will likely take multiple hours from start to finish. Please ask us if you are concerned about whether your object can be accurately 3D scanned.