I needed a custom sized cable management box for my needs, so I designed one, and made it parametric so anyone can make their own custom version too.

For the sake of simplicity, I've also added a couple of different sizes.

• S = 20 cm x 10 cm x 10 cm (tall version is 15cm in height)
• M = 24 cm x 12 cm x 12 cm (tall version is 15cm in height)
• L = 28 cm x 15 cm x 15 cm

With the .f3d file, you can easily adjust the following parameters in Fusion360:

• length, width, and height of the box
• size of the top opening
• number of side openings: 0, 1 or 2
• pattern size: the diameter of the cylinders making the external pattern. Note that increasing this parameter also increases the wall thickness.
• the corner radius: get a more rounded design

Hope you like it!