I designed this so I could add an RGB strip across the top of the enclosure. There is no rod here because the cover is intended to also open up the top as well. This allows for that extra piece to add lighting while also being removable at will.
I used a piece of 44mm dowel with a 5cm diameter here but you could replace this with plastic, metal, etc… as long as it's solid enough and is 5mm diameter.
The author marked this model as their own original creation.