I took John's 3mf file and modified it to hold my electrical tape, which are 32mm inner diameter.
Printed with a 0.6mm nozzle in any old black PLA.
Layer height: 0.3mm
Support: yes (only from the print bed)
Print time for me: took about an hour.
I'm quite a noob in Fusion360, so thanks to John for the perfect template!
The author remixed this model.