%% LyX 2.1.1 created this file.  For more info, see http://www.lyx.org/.
%% Do not edit unless you really know what you are doing.
\documentclass[english]{scrartcl}
\usepackage{helvet}
\renewcommand{\familydefault}{\sfdefault}
\usepackage[T1]{fontenc}
\usepackage[latin9]{inputenc}
\usepackage[landscape,a4paper]{geometry}
\geometry{verbose,tmargin=1cm,bmargin=1cm,lmargin=1cm,rmargin=1cm}
\pagestyle{empty}
\setcounter{tocdepth}{2}
\setlength{\parskip}{\smallskipamount}
\setlength{\parindent}{0pt}

\makeatletter
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% User specified LaTeX commands.
\usepackage{pgfgantt}
\usepackage{pdflscape}

\makeatother

\usepackage{babel}
\begin{document}
\noindent\resizebox{\textwidth}{!}{
\begin{ganttchart}[
y unit title=.6cm,
y unit chart=.6cm, 
vgrid,
title/.style={draw=none},
canvas/.style={draw=none}
]{1}{24} 
	\gantttitle{sessions de 3 h}{24} \\ 
	\gantttitlelist{1,...,24}{1} \\ 
		\ganttbar{acquisition des composants}{1}{2} \\
		\ganttbar{ajust. du tube inf. au boitier du pédalier}{3}{4} \\ 
		\ganttbar{coupe du long tube de direction}{3}{4} \\ 
		\ganttbar{ajust. du cadre au tube de direction}{5}{6} \\ 
		\ganttbar{tube inf.: perç. et coupe}{5}{6} \\ 
		\ganttbar{prol. mont. du tube inf.: perç. et coupe}{5}{6} \\ 
		\ganttbar{polissage des zones de soudure}{7}{7} \\ 
		\ganttmilestone{points de soudure}{7} \\ 
		\ganttbar{tube de dir. court, coin, renfort inf.}{8}{8} \\ 
		\ganttmilestone{points de soudure}{8} \\ 
		\ganttbar{prolongation du tube de fourche}{9}{10} \\ 
		\ganttbar{tige de direction et accessoires}{9}{10} \\ 
		\ganttbar{points de soudure, jalon du 1er essai}{11}{11} \\ 
		\ganttbar{soudures, ajustage}{12}{12} \\ 
		\ganttbar{surface de chargement et bouchons}{13}{14} \\ 
		\ganttbar{soudage des pièces restantes}{15}{16} \\ 
		\ganttbar{peinture/revêtement}{17}{20} \\ 
		\ganttbar{montage des pièces de vélo}{21}{24} 
\end{ganttchart}
}
\end{document}