Shoe rack storage box

Shoe racks are a cheap solution to filament storage and they work great. However, there's a lot of empty unused space behind the filament spools on the rack. Due to ceiling heights where I've got the rack, I had to split mine into two halves and I decided that wasted space on the top rack of each half could be put to good use if I had a way to store stuff there. I designed these boxes to have a cutout for the tubes of the shoe rack so that they wouldn't be easily knocked off. Now I can store accessories like extra desiccant holders behind the spools. Boxes can be easily resized on the X and Z dimensions in the slicer as long as you disable the uniform scaling option. For my shoe rack a 240mm box and a 150mm are the perfect size to fit on the shoe rack with just enough clearance to easily take them on and off if necessary. These boxes could be used anywhere you have one of these shoe racks for storage, not just for 3D printing. Link to shoe rack I use: https://www.amazon.com