\documentclass[pstricks]{standalone}

\usepackage{pst-fourbarlinkage,multido}


\begin{document}
\multido{\i=0+10}{37}{
\begin{pspicture}(-6,-6)(6,8) % class 11
\psFourBarLinkage[unit=2,barlengths=16 14 12 10,crossed,N=\i,centrodes,connectedpoints,fixedcentrodes,dmax=5] % classe 11
\end{pspicture}}
\end{document}