Dimension too large for a simple tex drawing

I have relatively simple 3D drawing. It compiles fine, but I get five "Dimension too large" errors. How can I avoid it?

documentclass[10pt]{scrartcl}
usepackage{tikz}
usetikzlibrary{intersections}

begin{document}

pgfmathsetmacro{tc}{cos(25)}
pgfmathsetmacro{ts}{sin(25)}
pgfmathsetmacro{pc}{cos(140)}
pgfmathsetmacro{ps}{sin(140)}
begin{tikzpicture}[x={(-ps*1cm,pc*ts*1cm)},y={(-pc*1cm,-ps*ts*1cm)},z={(0cm,tc*1cm)}]
draw[name path=i2] (1.5,0.2,0.8) -- (1.5,0.2,2.6) -- (4.5,0.2,2.6) -- (4.5,0.2,0.8) -- cycle;  
path[name path=e2] (1.5,0,0.8) -- (1.5,0,2.6) -- (4.5,0,2.6) -- (4.5,0,0.8) -- cycle;
draw[name intersections={of=i2 and e2}] (intersection-1) -- (1.5,0,0.8) -- (intersection-2) (1.5,0,0.8) -- (1.5,0.2,0.8);

end{tikzpicture}

end{document}