School Me on Surface Gauges

[ChazzC]

I see not. Cool. I'm sure that helps stabilize the arm. I was toying with the idea of making one of these but without a surface grinder I cannot get super close tolerances. I could hand lap the bottom of the base.

Not quite as much fun, but buy one of Dave's: https://www.hobby-machinist.com/threads/school-me-on-surface-gauges.115407/post-1179901