\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
\usepackage[T1]{fontenc}        % Without this we get weird character replacements
\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{Darktotoro}
\pdfinfo{
  /Title (fabricacion.pdf)
  /Creator (Cheatography)
  /Author (Darktotoro)
  /Subject (FABRICACIÓN Cheat Sheet)
}

% Lengths and widths
\addtolength{\textwidth}{6cm}
\addtolength{\textheight}{-1cm}
\addtolength{\hoffset}{-3cm}
\addtolength{\voffset}{-2cm}
\setlength{\tabcolsep}{0.2cm} % Space between columns
\setlength{\headsep}{-12pt} % Reduce space between header and content
\setlength{\headheight}{85pt} % If less, LaTeX automatically increases it
\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
\newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns
\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
\definecolor{HeadBackground}{HTML}{333333}
\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{A3A3A3}
\definecolor{LightBackground}{HTML}{F3F3F3}
\renewcommand{\familydefault}{\sfdefault}
\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{FABRICACIÓN Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Darktotoro} via \textcolor{DarkBackground}{\uline{cheatography.com/133678/cs/38222/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Darktotoro \\
  \uline{cheatography.com/darktotoro} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 15th April, 2023.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{x{1.656 cm} x{2.016 cm} x{1.728 cm} x{1.8 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{8.4cm}}{\bf\textcolor{white}{TEORIA DE CORTE}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Cp=T/6 σ}} & ɣn ≡ \seqsplit{desprendimiento} & h1 ≡ viruta no def & f ≡ avance {[}mm/rev{]} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
(malo) \seqsplit{3≤T/2I≤10} (caro) & αn ≡ incidencia & h2 ≡ viruta def & fz ≡ avance filo {[}mm{]} \tn 
% Row Count 7 (+ 4)
% Row 2
\SetRowColor{LightBackground}
ap ≡ prof corte {[}mm{]} & βn ≡ filo & φn ≡ \seqsplit{inclinacion} del filo & S ≡ vel del husillo {[}rpm{]} \tn 
% Row Count 11 (+ 4)
% Row 3
\SetRowColor{white}
S ≡ vel del husillo {[}rpm{]} & {\bf{μ = tgρn =F/N}} & {\bf{Rt = f\textasciicircum{}2\textasciicircum{}/8r}} & V ≡ vel de corte {[}m/min{]} \tn 
% Row Count 14 (+ 3)
% Row 4
\SetRowColor{LightBackground}
T=C/V\textasciicircum{}1/n & {\bf{T=K/(V\textasciicircum{}1/n1\textasciicircum{} {\emph{ f\textasciicircum{}1/n2\textasciicircum{} }}ap\textasciicircum{}1/n3\textasciicircum{})}} & 1/n1 \textgreater{} 1/n2 \textgreater{} 1/n3 & {\bf{ξ= h2/h1}} ≡ fact recalcado \tn 
% Row Count 18 (+ 4)
% Row 5
\SetRowColor{white}
{\bf{tgφn = cosɣn/(ξ-senɣn)}} & 2φn + ρn - ɣn = π/2 & I = N/N0 *100 \seqsplit{maquinabilidad} & {\bf{h1 = f*senκr}} \tn 
% Row Count 22 (+ 4)
% Row 6
\SetRowColor{LightBackground}
κr ≡ \seqsplit{posición} & εr ≡ punta & {\bf{Fc filo= ks*A0=ks*D/2*f/2}} & {\bf{Vf=V*f/(π*D)}} \tn 
% Row Count 26 (+ 4)
% Row 7
\SetRowColor{white}
{\bf{Fa = Nc*sen κr}} & {\bf{Pa = Fa*Vf}} & {\bf{Fr = Nc*cos κr}} &  \tn 
% Row Count 29 (+ 3)
% Row 8
\SetRowColor{LightBackground}
{\bf{Fc = ks*A0=ks0*h1\textasciicircum{}-m\textasciicircum{}}} & {\bf{Pc = Fc*V}} & {\bf{Nc = \seqsplit{Fc*tg(ρn} - ɣn)}} &  \tn 
% Row Count 32 (+ 3)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{x{1.656 cm} x{2.016 cm} x{1.728 cm} x{1.8 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{8.4cm}}{\bf\textcolor{white}{TEORIA DE CORTE (cont)}}  \tn
% Row 9
\SetRowColor{LightBackground}
{\bf{Fc broca = z*Fc filo}} & {\bf{P = z*Fc filo}} &  & \seqsplit{M=Fa*p/2π} \tn 
% Row Count 3 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\SetRowColor{LightBackground}
\mymulticolumn{4}{x{8.4cm}}{α β ɣ ≡ \textgreater{}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{ECONOMIA DE MECANIZADO}}  \tn
% Row 0
\SetRowColor{LightBackground}
Productividad = Produccion obtenida/factores utilizados & si tc\textless{}tm -\textgreater{} {\bf{tm≈tc =l/Vf}} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
{\bf{tfi=tprep/nºpieza + tcarga + top + tdesc + tnp}} & top =tconf + tch + tno conf -{}- {\bf{tt = tm + tc/T*trf + tnp}} \tn 
% Row Count 6 (+ 3)
% Row 2
\SetRowColor{LightBackground}
{\bf{Ctmec = Cmec + Cch + Cnp + Cpre + Cmat + Cutill}} & {\bf{Cmec= ċ{\emph{tm -{}- Cch=ċ}}tch -{}- Cnp=ċ*tnp}} \tn 
% Row Count 9 (+ 3)
% Row 3
\SetRowColor{white}
Am - directa = Cmaq/Años -{}- simple =D{\emph{(1+tasa}}a) & {\bf{Ct= ċ{\emph{tm+tc/T}}(ċ{\emph{trf+Chf)+ċ}}tnp}} \tn 
% Row Count 12 (+ 3)
% Row 4
\SetRowColor{LightBackground}
-{}- compuesta = D*(1+tasa)\textasciicircum{}a\textasciicircum{} & {\bf{ċ = (Am/nturnos+nºoper{\emph{Ctelab)}}1/(1-ηcostes){\emph{1/(horas}}ocup)}} \tn 
% Row Count 16 (+ 4)
% Row 5
\SetRowColor{white}
enteriza -{}-{\bf{ Chf = (Ch+nreaf*Creaf)/(nreaf+1)}} & plaquitas -{}- {\bf{Cportah/(nplaqvida{\emph{nfilos)+z}}Cplaq/nfilos}} \tn 
% Row Count 19 (+ 3)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{Tmp=(1/n1)*trf} \tn 
% Row Count 20 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}