One-side margins in Memoir

Question

University requirements stipulate that the margins for the thesis be 3.5cms all around and 4 cms on the left. I used the following code but the even-page margins seem to be off. How can make the document have the same margin dimensions as the first image (odd-page):

\documentclass[oneside, 11pt, a4paper]{memoir}
\setulmarginsandblock{3.5cm}{3.5cm}{*}
\setlrmarginsandblock{4cm}{3.5cm}{*}
\checkandfixthelayout

\usepackage[english]{babel}
\usepackage{lipsum}
\chapterstyle{veelo}
\usepackage{showframe}
\renewcommand\ShowFrameLinethickness{0.3pt}


\begin{document}
\lipsum
\lipsum
\end{document}

Answer 1

As Zarko's comment points out, there's something wrong with the way showframe is framing the page.

Try replacing this:

\usepackage{showframe}
\renewcommand\ShowFrameLinethickness{0.3pt}

with this:

\pagestyle{showlocs}

and you should get correct framing; the showlocs page style is described in the Memoir manual, section 7.4.