No description of operation or assembly instructions or anything. The readme says 'some upgrades are needed'. If I wanted a screw counting machine I would thin

No description of operation or assembly instructions or anything. The readme says 'some upgrades are needed'. If I wanted a screw counting machine I would think about building this, but since I don't at the moment, I would like to know how it works. If you are just curious about its operation, then I think you may be disappointed.