In this project I built a 3D Scanner, that enables generating 3D models of physical objects.
The files can later be viewed in 3D software (GLC Player, Sketchup, Rhino, or sites such as http://3dfile.io)
and even manipulated into .STL file and 3D printed.
The software for this project is completely free, I am using Autodesk's 123D catch, Link:123D catch
The 123D Catch is a great software, it requires taking many photos of an object all around it, and uploading it into the software, and it returns a 3D file.
Since I really liked the solution but did not wanted to take the photos myself - I built an instrument that does that -
Please note that this document does not intend to explain how to use 123D catch (this can be found here)
Step 1: Operation principle (can be skipped)
The design of the scanner is quite simple, and consists of 3 main parts:
- Scanner chassis and stage
- Scanner arm (carries the camera)
- Scanning surface
- The chassis - this is the part that sits on the table and carries the scanning Surface and the scanned object on it
- Scanner arm - The arm has the camera in the end of it, and a servo motor that presses on the button and take all of the pictures, the arm rotates around the scanning surface and takes pictures every few degrees. Pay attention that there's a weight to balance the own weight of the camera (*)
- Scanning surface - a round board, with colored stripes on it, carries the scanned object. (**)
(**) The color stripes on the base are also in purpose to help the stitching algorithm - the help (colors, number of lines, orientation) to stitch.