tiny metal shop in the corner of my bedroom

Some dangerous rabbit holes from Clickspring:

• Home Shop Foundry: The Furnace
• playlist — Shop tour

hand filing

General intro to hand filing:

• by Tubal Cain:   Part 1, Part 2
• by Black Bear Forge
• by the US Office of Education, 1942
• by Gregg Distributors

Other videos:

• 8 Old-School Tips for Better Hand Filing | Clickspring — Oh my. This might start something in me.