Ray Cecil Posted June 30, 2019 Author Share Posted June 30, 2019 Precision ground flat stones seem to be a huge thing on YouTube machining channels lately. Not that I think we need Robin Renzetti's level of aerospace precision, but it's nice to know how universal the idea of lapping a flat surface is. I wasnt aware it was a "thing" now. Ive been doing it for 23 years now. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted June 30, 2019 Share Posted June 30, 2019 I wasnt aware it was a "thing" now. Ive been doing it for 23 years now. No, I meant that all of them are either making them or gifting each other. The technique has been around since before machine tools. You know Robin's a step beyond when his are made of ruby and an optical flat's interference lines aren't wide enough to measure his surface plate so he creates a Renz-o-meter™ for repeatability! Link to comment Share on other sites More sharing options...
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