[CPLX]

I mean, you don't have to sharpen them yourself. All it takes is a good stash of chains, and someone in the area who does it, and you can drop off half of them and pick up the other half every time you swing by, it's not that big of a deal.

[eitland]

Yep, there are even machines to do it quickly.

Still nice to know how to sharpen a chain to a certain degree so you don't have to change the chain multiple times before lunch.

Changing the chain easily takes a few minutes (opening the side, loosen the chain, change chains, tightening the new one to correct tension, closing the side.)

[lootsauce]

This reminded me of my childhood. I grew up spending every afternoon in my grandpa’s workshop where the sign read “Bud’s saw sharpening” he also did tv and radio repair. It was a fascinating magical place where I could tinker and look through his old Popular Mechanics while he meticulously sharpened chains and various blades on specialized equipment. He had one small room that was packed with vacuum tubes. I would open each box up and marvel at the technology. I can’t imagine how valuable all that stuff would be now.