The world of 3D scanning offers many different technologies. From free scanners that run on Smartphones, all the way up to industrial options for high precision metrology, it can be difficult to determine the best 3D scanner solution that will meet your requirements. How do you know what scanning solution is right for you?
The first step is to determine the object size of the parts you will be scanning. Scanners generally have a fixed Field of View, meaning they will be able to capture a set volume of data at any given time.
Next, consider what you will be using the scanner for, whether it’s reverse engineering, inspection, 3D Printing, producing online assets or even AR/VR. This, in turn, will determine the minimum accuracy and resolution required.
Accuracy has to do with how well the scan dimensionally conforms to the physical object. When would accuracy be important? Accuracy is extremely important for inspection applications, but far less important for Web Assets or Virtual Reality.
Resolution, on the other hand, refers to a scanner’s ability to pick up fine detail. You can think of the density of a point cloud captured as the resolution. The closer the points are to each other, the better the image will be defined. If one were to scan the gentleman’s face (shown below) or a coin and wanted to capture all of the detail, the points captured by the scanner would need to be extremely close together.
Stay tuned for future articles where we will discuss two other important factors to consider when searching for a viable scanning solution.