Many other solutions lack either of quality of the scan-results, simplicity of the scanner or affordability. Thus, I use almost only 3d printed parts (ca. 100g) + basic arduino accessories and coding + a 10 year old camera  and freeware to process the models.The details will be given in the following sections. As you can see in the video, the scanner is up and running. It might take a little while to gather all the details and present everything in a well-structured way.

See the following video to get an idea of the workflow: 

closeup of the scanner:

another one ;)