Link 1 has translational motion along fixed guides a-a and is connected by sliding pair b-b to link 2 which has translational motion along guides c-c. The mechanism converts straight translational motion of link 1 along axis a-a into straight translational motion of link 2 along axis c-c which makes the angle α with axis a-a. Displacement s₂ of link 2 is related to displacement s₁ of link 1 by the condition : s₁=s₂ cos(α).
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