Here is a Skittles sorter built from 3D printed parts: https://www.youtube.com/watch?v=tSEHDBSynVo https://www.youtube.com/watch?v=tSEHDBSynVo It looks like a

Here is a Skittles sorter built from 3D printed parts: https://www.youtube.com/watch?v=tSEHDBSynVo https://www.youtube.com/watch?v=tSEHDBSynVo It looks like a hobby 3D printer was more than good enough.