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freosam
on April 17, 2020
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Hand Scraping a Truly Flat Plane (1908) [pdf]
Whitworth's method of scraping (mentioned in this article) is explained in this 1858 paper:
https://en.wikisource.org/wiki/Miscellaneous_Papers_on_Mecha...
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https://en.wikisource.org/wiki/Miscellaneous_Papers_on_Mecha...