About this 3D model

I liked the clips made by Nben. But I like to use Polycarbonate/Lexan instead of Plexiglass. I found 11" by 18" sheets which are easier to cut down for the side windows. I also figured if I leave the bolts a little loose and add a small handle, I could remove the side windows if needed without removing the bolts. I have included the single print files as well. If anyone has comments on how I can improve these, please let me know.