I wanted a bigger board that would be strong enough to hold itself up, so I made this. Does the job great, holds medium weight items easily (screwdrivers, tape measure, headphones, etc).
Needs wooden dowels 10mm in diameter and 38mm long. I just cut off a bit from 45mm dowels, since that's what I had. Also super glue is recommended. Although the gap on the photo is the result of an unfortunate glue-up.
Print 2 of each corner, parts diagonal to each other are the same.
The author remixed this model.
This is multiple panels that can be connected to each other.