/diy/ - Do It Yourself

>>2756120
Tungsten carbide is a man made alloy. The ore we get tungsten from doesn't even form near carbon sources, let alone have carbon in it. If you're going to be a smartass, at least try to be correct.

>>2742190
>Sure bud, box ways are ground these days. Cnc controlled grinders
Scraping ways, and scraping for flatness are two different things. You cannot have two, raw, ground surfaces slide across each other like that.
You very blatantly don't have a clue what you're talking about, you're just regurgitating half-info you've heard actual machinists say. I'm sure you're about to tell me AI is going to replace CNC programmers any day now, when it can barely do a proper drill cycle.

>>2702133
>they stopped putting ddt in food
>polio pandemics started around 1900
>DDT wasn't even known to be an insecticide until the late 30's, and wasn't sold to farmers until the end of WW2
>implying chemicals can cause viral infections on their own