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Lol there's a definite reason for that! When you are in a trade union, a large part of that is the fact that your skillset was developed and paid for by others. The journeymen of the past worked with you when you knew less than nothing, and often paid for your benefits during that time period...

Jed, because I'm not smart, and am basically an alcoholic redneck that holds sparklers for a living :lol: Cory, the building and rebuilding of machining tools uses hand scraping, which is using a single edged tool and by hand shaving down high spots. They mark the high points using marking dye...

It's kinda one of those things that people take for granted that they are smarter than people that came before them. They were different from us, practiced different religions, e.t.c, so there's no way that they could come up with stuff, so it must be aliens lol. I finally got to watch the...

I still gotta get some time and watch the videos, but it's exactly like grinding or lapping, you are using an abrasive. They didn't have access to aluminum oxide like we often use now, but they had sand, which is quartz crystals (very hard). Many materials fracture along grain structures, and...