Noticed that my printer was getting a little too much motion in the Y plane so... POOF ... this design. It combines both my vanity and a functional purpose.
It does need some sanding because it is a pretty tight fit in order to put some tension on the support springs. It also has an angled top surface that touches the lower edge of the platen. There are some mounting holes for some wire ties if it helps make things tighter.
Do with it as you see fit. Remember not to make things too tight because you will loose the benefit of the give that the springs do provide recovering from layer drag.
Hope it's useful.