About this 3D model

This is a big shelve for me to store all of my stuff that i use to built or modify electronic or 3d printer It has a hexagon pattern on the side of it to save on filaments (a bit) but the shelve alone (without drawer) consumed about 600g of filament. I included all the compartment/divider for the shelves. Printed with 4mm brim otherwise it will has error and 5% infills to reduce the time abit One completed shelve (1x Shelve and 4x Drawer) will be printed in 20 hours.