Steam locomotive conjugated valve gear animation.
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More: https://en.wikipedia.org/wiki/Gresle...ted_valve_gear
Previously:
https://www.homemadetools.net/forum/...1633#post74805
https://www.homemadetools.net/forum/...917#post119761
https://www.homemadetools.net/forum/...2795#post97153
https://www.homemadetools.net/forum/...958#post124998
https://www.homemadetools.net/forum/...403#post127265
https://www.homemadetools.net/forum/...959#post125005
