How Do Machinists Make True Flatness When Nothing Is Flat?
10K views · Sep 26, 2026 · Education
Comments · 6
@jaythomas7750 · 4 days ago
Mostly, we learned to never take a surface plate for granite!😁
2
@Valery_1954 · 3 days ago
Плоской поверхности добиваются слесаря, да хоббийщики, токари не занимаются подобным, они просто требуют ремонта у начальства или новые станки ))
@Ujeb08 · 3 days ago
Ihave been a tool & Modelmaker/machinist and worked in shops and engineering laboratories for over 50 years. used many pink grade A & AA granite surface plates for many of those years. I worked on surface grinders and EDMs keeping part tolerances to within 0.0001" . I have never seen a professional do a scraping job in person.
1
@chekaphski · 4 days ago
Excellent documentary, many thanks for a deeper insight into our world. And some say that AI is the work of the devil, not this AI!
2
Up next
How Precision Became a Number
The Gear Archive · 7.5K views
The Surface Finish Standards War That Make Machinists Crazy
The Gear Archive · 26K views
How American Machinists Work 1,000 Feet Beneath the Ocean
The Gear Archive · 3.8K views
How Just One Deal Destroyed The World's Greatest Saw Empire: Disston
The Tool Chronicle · 783 views
If Copper Isn't Magnetic, Why Does a Magnet Float Inside Copper? — The History of Neodymium
VEIN Material · 6.1K views
Why Was This 1896 Tool Forgotten?
Pask Makes · 1.5M views
How Precision Started Before the Cutting Tool
The Gear Archive · 11K views
It's Over: Bonds COLLAPSE to WORST Levels Since 2002 - Netherlands BANS Microsoft
House of El · 235K views
Every Confusing Thing About How Antennas Work Explained Slowly (For Sleep)
Cosmo Explains · 39K views
Why Old Locomotives Had Giant 'Ears' on the Front
Steel on Rails · 302K views
40,000 Years of the First Machine Every Machinist Touches
The Gear Archive · 3.8K views
Shop Drawings That Built a Generation of Machinists
The Gear Archive · 37K views
How Precision Became Visible to the Machinist’s Eye
The Gear Archive · 40K views
40 Years of Machining. No One to Take Over
The Gear Archive · 24K views
The History of Vanadium — The Invisible Dust That Forged the Model T
Relics & Realms · 29K views
Why Molecularly Flat Steel Blocks Defy Gravity (No Magnets)
Rivet and Rebar · 692 views
150 Year War Over Drill Bit Sizes
The Gear Archive · 38K views
How Thermodynamics Was Discovered
Science Retold · 7.6K views
Why Machinists Don't Use Protractors For Precision Angles
The Forgotten Machinist · 6.2K views
The History of Tungsten — The Metal That Shattered Steel
Relics & Realms · 9.2K views
The History Of The Metal File: 3,000 Years of Precision, Built on Poison
HandCraft Origin · 761 views
The Philadelphia Machinist Who Ended America's Screw Thread Chaos With One Stubborn Standard
The Engineering Record · 1.3K views
What Happened to Crystal Detectors? The Radio Parts That Needed No Battery
Fallen America FM and Vergessene Fabriken · 3.3K views
How a $200 Idea Built America's Greatest Welding Empire
Trade Archive · 217K views
Why Old Steam Locomotives Had That Giant Tube on the Front
Steel on Rails · 3.3K views
The Rise and Fall of the American Tool Room
The Gear Archive · 2.4K views