A combination of the Angry Hulk filament spool holder (https://www.thingiverse.com/thing:4834202/files) and the 4040 spool holder frame (https://www.printables.com/model/925473-spool-holder-item-extrusion-4040/remixes) to use in my 4040 extrusion table.
The author remixed this model.
This model is the two models above merged together with some filleting added.