This uses the same interface/mating surface as the original file, but you can print a small label for this knob. I have included some examples, but also a blank label (and a SolidWorks file) so you can add your own text or symbols. The AnkerMake slicing software has an emboss option to add text on a print. However, after a quick internet search, it doesn't look like all slicing software have that, so you might need a CAD program. (There are free CAD programs, and many tutorials online) Luckily, these are very small prints so it is quick and easy to experiment. If you have requests for new labels in the comments section, I could try adding more, but sorry, no guarantees on turn around time.
Some of these worked with my 0.4mm nozzle, but many with small text did not. I have not tested all the label files. I tried a 0.2mm nozzle and of course that worked better for the small letters. Your results may vary. Some of my labels came out with a snug fit, some need to be glued in place.
I usually print the knob right-side up (standing), but then have to use a knife to clean up the edge of the bottom layer so that they fit on the potentiometer. Do not force the knob on because it will not come off and you will break the potentiometer if you try to remove it.
For measurements of the bottom if you want to make your own, and the YouTube demo (these knobs show up at 6min of that video), please see the original post that this is remixed from.
The author remixed this model.
Another potentiometer knob, but with all the label files, I created a remix to make it clear, these labels do not work with the other versions in the previous file.