Sardauscan : opensource DIY 30$ laser scanner

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Sardauscan is an open-source Sub 30$ 3D laser scanner that you can easily print yourself. Even for 12$, if you already have a Herkule HD Twist. We can confidently say it's the cheapest 3D scanner on earth. You'll need just an Arduino Nano, one to four-line laser, and a micro-geared stepper (28BYJ-48), as specified in the instruction for BOM. No external power is required; you simply need two free USB ports on your PC: one for the webcam and the other for the rest. The software is written in C# and allows you to create your scan task by dragging and dropping. The recommended process consists of these steps: "Scan" => "IrQ Filter" => "Merge Laser" (if using more than one laser) => "Build Mesh by Interpolation" => "Save STL." However, if you're not satisfied with the built-in processing tasks or prefer to use another powerful software like Meslab or others, you can simply "Scan" => "Save Ply" and import them into your preferred application. While the software comes with a building support for Sardauscan hardware and USB camera, you can easily write your own hardware proxy via plugins. You can even create your own task to insert in your scan process. Source code is available at https://github.com/Sardau/Sardauscan. For real-time scan video, post-processing starts @ 1:50; if you want to see the speed of post-processing (smooth, mesh reconstruction, and STL generation), I've added an Instructable explaining how to build, calibrate, and use Sardauscan. Any vote will be appreciated at http://www.instructables.com/id/Build-a-30-laser/.