Destop Stackable Shelf Base

I needed a ***stackable shelf*** that I could put on my desk. I want to place the filament dryer for my 3D printer on the shelf. I also needed a design that was quick to print. I decided that the *base of the shelf would be wooden tubes recycled from broom handles* that were going to be thrown away. The diameter of the wooden tubes is 2 cm

The measures of the ***Destop Stackable Shelf Base*** are:
* height: 16mm
* width: 116mm
* length: 149 mm
* orientation: lying down to avoid as much support as possible. the only support needed would be for the assembly bolts