%&tex
\documentclass{standalone}
\usepackage{tikz}
\usepackage{siltex}
\usetikzlibrary {arrows.meta,positioning}
\usetikzlibrary{calc,patterns}
\input{graphics/tics.tikz}

% Compliant PDF
\usepackage[a-3u]{pdfx}
\begin{document}
\begin{tikzpicture}[thick, >=Stealth, on grid, y=2.16cm, x=2.16cm]
    \def \x {0.45};
    \def \y {0.35};
    \def \posx {1.7};
    \def \posy {1.2};
    \def \beta {-120};
    \def \alpha {130};
    \draw (0,0.5) pic {whiteboard};
    \draw (0,3) -- (\posx-\x,\posy+\y);
    \draw (4,3) -- (\posx+\x,\posy+\y);
    \draw (0,3) pic {pulley};
    \begin{scope}[x=-2.16cm]
            \draw(-4,3) pic {pulley};
    \end{scope}
    \draw (1.7,1.2) pic {scara};
\end{tikzpicture}
\end{document}