% ---------------------------------------------------------------------------- %
%% \file gcode2grbl.tex
%% \author Sebastien Beaugrand
%% \sa http://beaugrand.chez.com/
%% \copyright CeCILL 2.1 Free Software license
% ---------------------------------------------------------------------------- %
\documentclass[a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage{tikz}
\pagestyle{empty}

\begin{document}
\newlength{\marge}
\setlength{\marge}{6mm}
\newlength{\longeur}
\setlength{\longeur}{74mm}
\newlength{\hauteur}
\setlength{\hauteur}{\dimexpr \numexpr \longeur / 2 \relax sp}
\newlength{\centreX}
\setlength{\centreX}{\dimexpr \numexpr \longeur / 2 \relax sp}
\newlength{\centreY}
\setlength{\centreY}{\dimexpr \numexpr \hauteur / 2 \relax sp}
\fontencoding{T1}\fontfamily{frc}\fontsize{36pt}{40pt}\selectfont
\begin{tikzpicture}
  \draw[blue, very thin] (\longeur,\hauteur) rectangle (0,0);
  \draw (\centreX,\centreY) node {Sébastien};
  %\draw[blue, very thin] (\longeur-\marge,\hauteur-\marge) circle (1mm);
  %\draw[blue, very thin] (\marge,\hauteur-\marge) circle (1mm);
\end{tikzpicture}
\end{document}