Gregory's Server@ChateauErin I think they would machine the cams the same way they would make other metal parts with a complex shape. E.g. using a milling machine and a template.
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 @ChateauErin I think they would machine the cams the same way they would make other metal parts with a complex shape. E.g. using a milling machine and a template. 1 comment
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@kenshirriff thanks. I don't know why I didn't think of milling machine; part of me knew that they were plenty old. "and a template" was something I absolutely didn't consider except abstractly (I'd imagined something kind of pantograph-y) so this should hopefully be enough to send me down that rabbit hole