Question: Synthesize a four-bar mechanism to generate a function (y=sin x) for (0^{circ} leq x leq 90^{circ}). The range of the output crank may be chosen

Synthesize a four-bar mechanism to generate a function $y=\sin x$ for $0^{\circ} \leq x \leq 90^{\circ}$. The range of the output crank may be chosen as $60^{\circ}$ while that of input crank be $120^{\circ}$. Assume three precision points which are to be from Chebyshev's spacing. Length of fixed link $=52.5 \mathrm{~mm}$, $\phi_{1}=105^{\circ}$ and $\psi_{1}=66^{\circ}$.

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