Windows Mixed Reality Battery Cover - Flat Bottom

This is a modified version of the WMR battery cover made by hit8cat. I had a very hard time getting the original to print properly on my printer due to the shallow angle of the cover. Even with support I ended up with sagging or warping. So, I modified it to flatten out the bottom. Now it can be easily printed on its end without difficulty.

Sorry for any problems with the STL file. I used Windows 3D Builder to make the modification and this is as good as I could manage to get it.