Making Flat lapping plates 3
23:53
Making Flat lapping plates 4
28:06
Making flat lapping plates 1
49:56
Lapping my Granite Surface Plate to AA Grade
10:59
Grinding a 25-Inch F3 Telescope Mirror: Thinning and Flattening the Back
47:02
Hand Scraping a Surface Plate to Sub 5 Micron / A - Grade Flatness
26:35
Graphite Crucible Making | Metal Melting Crucible Manufacturing | Graphite Crucibles Carbon Industry
1:36:25
Lapping Plates using the Whitworth 3 plate method.
27:38