Youtube activity of "Roger Scott Cathey" (@rogerscottcathey) on "Machine Thinking" channel.
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Commenter youtube id
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Roger Scott Cathey
Commenter name
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@rogerscottcathey
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"New method for etching brass dials - great detail!"
Comments by video
"Origins of Precision"
"Perfect Timing (with the Marble Machine X)"
"The 1751 Machine that Made Everything"
"The HIDDEN Screws of PRECISION"
"Where DO screws come from?"
"World's Oldest Micrometer - 1776! Who made this thing??"