There's a few DIN rail clippy thingies out there, but I like the one that espr14 cooked up the most.
There's a few cable organizer bits but I didn't find anything that I liked if I wanted to make a length of cable on a DIN rail neat by wrapping it up.
I didn't get around to making the spool size paramaterized, but I'm sure someone else can come along and play with that some more down the road.
If you want to use the OpenSCAD version, you need to install the BOSL2 library.
I printed this with a 0.4mm nozzle. It's not especially sensitive to layer heights or materials. I printed one with Matter Hackers BUILD series PLA and I printed another using Fusion Filaments HTPET+.
The author remixed this model.