Anet A8 - sturdy elongated filament guide

I keep my the filament rolls above the printer, and I've tried a couple of other filament guides for the Anet A8 before designing this. However, filament was always binding or catching somewhere, especially for larger prints. So I decided to make something sturdy that will attach well to the frame and give me an elongated smooth opening. See the pictures---my design attaches in 3 places to the frame: both sides of the display section, and also all the way on the frame right above the display