Small printer protective face shield

Since prusa's model is too big for my delta's bed I made a 3-parts design, in order to create a head support for the transparent plastic.

Pieces are kept together by screws (used M3x10 on my design) and there are front holes for two screws to hold the plastic protector. On the edges I made small inserts to place plastic's edge and help keeping protector on place and shape.

Adjustment to head can be made with a rubber band from another two screws (again M3) or by using the provided holes made for using less PLA (don´t worry, with regular filament is rather sturdy and not too material-hungry)

Side pieces needs about 6 metres each and the bridge around 2.5, with less than 15M (