"The longest-lived micrometer than can be bought." J.T. Slocomb micrometers and stand, all fully restored by myself. Each mic is between 70-120 years old, and they're all still accurate.ExHempKnight OP t1_j9384jw wrote
Reply to comment by [deleted] in "The longest-lived micrometer than can be bought." J.T. Slocomb micrometers and stand, all fully restored by myself. Each mic is between 70-120 years old, and they're all still accurate. by ExHempKnight
Lol relax! This is my basement shop. The walls don't need to be pretty.
As for the granite... That's the most important thing in my shop. It's called a surface plate, and it's flat. Very, very flat. The difference between the highest and lowest points, over the entire 12"x18" surface, is less than 0.0002".
A surface plate is the reference for the entire shop. Using various instruments, I can use the plate to tell if a part I made is flat, if opposite faces are parallel, or if perpendicular faces are, in fact, perfectly square. I can measure the height of objects relative to one another. I can use it to make other things flat, and then use those things to check the flatness of other things, such as the sliding surfaces between different moving parts of a machine.
Mine is a relatively small surface plate. They can get downright huge. 10, 20 feet long, and 1-2 feet thick. And bigger.
[deleted] t1_j938deh wrote
[deleted]
ExHempKnight OP t1_j93998l wrote
Lol! It's a workshop. Always gonna be a mixed bag. Pretty tools, ugly work surfaces.
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