A person who works with their hands is a labourer.
A person who works with their hands and their mind is a craftsman (craftsperson).
A person who works with their hands and their mind and their heart is an artist.
It's wood machining, and since there's no possibility other than: part machined as envisioned or flawed part which is discarded, there's nothing interesting about it beyond the economics and technology of it.
The thing which saddens me here is how much of the wood is becoming sawdust --- there's no possibility of cutting off sections of the blank to use for smaller projects? (Shades of the lamps by Louis Comfort Tiffany being made of scraps from stained glass production)