Resolution is defined as the 3D scanner’s setting of detail it captures when scanning an object; namely, the size of the minimum feature that can be measured. Resolution usually comes in millimeters or micrometers and thus directly influences the accuracy and detail of the final 3D model. For instance, a 3D scanner whose resolution is 0.1mm will show surface details if only these details are at least 0.1mm apart; a high-resolution scanner would have capabilities of 0.01mm and hence could detect even finer details.
Resolution depends largely on applications and types of objects scanned. For general scanning purposes, 0.1-0.5mm is a good enough resolution to provide detailed models of medium to large-sized objects. For highly detailed items, such as jewelry, small mechanical parts, and medical implants, the resolution should be in the range of 0.01-0.05mm to capture even the finest details. According to Revopoint, the resolution of their POP 2 3d scanner is 0.1mm, making it good enough for creating detailed models of everything from mechanical parts to sculptures.
The resolution also impacts the duration required for scanning. The higher the resolution, the more data points are captured; this means a much better, highly accurate model, but it also means it takes longer to scan and process. For instance, scanning a small part at high resolution may take several minutes, while it would take only a few seconds at a lower resolution. That is why resolution needs to be balanced with scan speed and efficiency of the general workflow. FARO Technologies, being one of the leading companies in the 3D scanning industry, has scanners ranging from 0.03mm to 0.25mm resolution, thus giving flexibility for different applications in architecture, engineering, and construction.
For industrial purposes, this will be very important in quality control and reverse engineering; even the slightest errors from the scan could result in some issues either in manufacturing or assembly. According to a report from 3D Systems dated 2020, the resolution of a 3D scanner is one of the main causes for its adoption in precision industries like aerospace, automotive, and healthcare. For example, General Electric employs high-resolution 3d scanning to check turbine blades, ensuring that even the tiniest defects are identified before the components go into service.
The resolution also determines the overall price of a 3d scanner. Generally, the higher the resolution capability of a scanner, the more expensive it is. Whereas basic handheld models used by consumers may start at as low as $200, high-precision industrial scanners can vary from $5,000 to over $100,000, depending on their features, scanning range, and resolution. For those looking to find a perfect balance between cost and performance, 3D scanners like the Revopoint POP 2 offer high-resolution scanning at relatively affordable price points; hence, it is ideal for both hobbyists and professionals.
The resolution of a 3d scanner directly affects the quality, accuracy, and application of the data. The higher the resolution, the more detailed it is. However, higher resolutions come at increased costs and sometimes take longer times to scan. Resolution should therefore always be guided by the demands of the project and details required.