Adam Savage's One Day Builds: Giant Nut and Bolt!

Summary by Krater

Adam Savage embarks on a two-day shop project to machine a massive, perfectly proportioned brass bolt and nut on his lathe and milling machine, meticulously cutting external and internal threads while navigating the challenges of scale and technique.

From the video

Answers: How do you machine a massive custom brass bolt and nut on a lathe and mill?

• brass machining
• thread cutting on a lathe
• milling hexagonal bolt heads
• using a dividing head and tailstock
• calculating thread pitch and dimensions
• surface polishing and finishing

What it concludes

• Machining a massive brass bolt and nut requires precise calculation of thread dimensions and careful multi-pass thread cutting on both the lathe and mill.
• Using a dividing head and tailstock on a milling machine enables the precise cutting of hexagonal flats on large round brass stock.
• Polishing brass to a high shine requires progressive sanding through 400, 600, and 1,000 grit stones and polishing wheels to achieve a mirror finish.