I got this scraper with my Wanhao Duplicator i3 about 8 years ago. I have been letting this thing float near my printer ever since. I finally mounted it to the wall.
My first version was the one labeled “bottom”. That didn't hold it upright. I then added the little curve to the “top” model. That worked, but it works better with both of them mounted carefully to the same wall.
Screws are sized for #6 countersunk screws. Don't over tighten them or the model will crack.
The author marked this model as their own original creation.