\documentclass[pstricks]{standalone}

\usepackage{pst-fourbarlinkage,multido}


\begin{document}
\multido{\i=0+10}{37}{
\begin{pspicture}(-3,-5)(7,8) % class 13
\psFourBarLinkage[unit=2,barlengths=14 10 12 16,crossed,N=\i,connectedpoints,centrodes,fixedcentrodes,dmax=2] % classe 13
\end{pspicture}}
\end{document}