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David 3D Scanner Review: A Professional Structured Light Scanner by HP
If you are looking for a professional 3D scanner that can capture high-quality 3D models of objects and people, you might want to consider the David 3D Scanner. This is a structured light scanner that uses a projector and one or two cameras to project and capture patterns on the surface of the scanned object. The software then reconstructs a 3D mesh from the captured images.
In this article, we will review the David 3D Scanner, also known as the HP 3D Structured Light Scanner Pro S3, which is the third version of this product. We will look at its features, performance, pros and cons, and compare it to some other 3D scanners on the market.
Features of the David 3D Scanner
The David 3D Scanner is a modular system that consists of a projector, one or two industrial-grade monochrome HD cameras, a calibration panel, a turntable, and a tripod. The projector is actually an Acer K132 HDMI WXGA DLP beamer that has been modified with a custom lens. The cameras have manual focus and exposure rings and can be mounted on an aluminum rail that slides onto the tripod. The calibration panel is a huge glass plate that is used to calibrate the scanner before each scan. The turntable is an optional accessory that can automate the scanning process by rotating the object.
The scanner comes with a USB dongle that contains the software license. You need to insert it into your PC to run the software. You also need four free USB ports (two of them must be USB 3.0) to connect the projector, the cameras, and the turntable. The software is compatible with Windows 7 or higher and requires at least 4 GB of RAM and an NVIDIA GeForce GTX 560 or higher graphics card.
The scanner can capture objects ranging from 60 mm to 500 mm in size, depending on the distance between the scanner and the object. The scan volume can be adjusted by changing the position of the projector and the cameras on the rail. The scanner can achieve an accuracy of up to 0.05% of scan size (up to 0.05 mm) and a resolution of up to 0.1% of scan size (up to 0.1 mm). The scan speed depends on the scan quality settings and the number of cameras used. A single-camera scan can take from 2 to 10 seconds, while a stereo-camera scan can take from 4 to 20 seconds.
Performance of the David 3D Scanner
The David 3D Scanner can produce high-quality 3D models with fine details and textures. The scanner works best in a dimly lit environment, as bright light can interfere with the projected patterns. The scanner can also handle shiny or dark surfaces by applying a thin layer of talcum powder or spray paint on them.
The software is easy to use and intuitive. It guides you through the scanning process step by step, from calibration to alignment to fusion. You can adjust various parameters such as brightness, contrast, quality, resolution, and texture before scanning. You can also preview the scan results in real time and edit them after scanning. The software allows you to align multiple scans automatically or manually, fuse them into a watertight mesh, smooth and simplify them, fill holes and gaps, crop and scale them, apply textures and colors, export them in various formats (OBJ, STL, PLY), and print them directly from the software.
The software also has some advanced features such as shape fusion, which lets you combine multiple scans of different objects into one model; deviation analysis, which lets you compare two scans or a scan and a CAD model for quality control; measurement tools, which let you measure distances, angles, areas, volumes, etc.; mesh comparison tools, which let you compare two meshes for similarity or difference; mesh editing tools, which let you modify meshes by adding or deleting vertices or faces; texture editing tools, which let you modify textures by painting or erasing; and more.
Pros and Cons of the David 3D Scanner
The David 3D Scanner has many advantages over other 3D scanners on the market. Some 061ffe29dd