Clip-on havy load spool holder for Tevo Black Widow

This is my first experience. :)
The aim of the project was to make the holder for several spools at the same time and not to drill the printer body. Load is transferred to the vertical racks of the printer (not to the horizontal crossbar as in other projects). As a crossbar, I used a 40 mm reinforced polypropylene tube. Tolerances in sizes are made taking into account the characteristics of my printer, so you may need a slight adjustment during installation.
As a result, installed holder very