He tried to design a set of cams, like the tide machine, to make multiple tracings on paper similar to a continuous horoscope, but finally gave it up.
He design several cams that didn't work, before he gave up.
mnli hypothesis: He design several cams that didn't work, before he gave up. premise: He tried to design a set of cams, like the tide machine, to make multiple tracings on paper similar to a continuous horoscope, but finally gave it up.