This was an interest article found in TPUG magazine. Which stood for the Toronto PET User Group. I don’t know how many issues there were, but I have 25 issues from Feb 1984 to Aug-Sept 1986.
Commodore 1541 Parallel Cable with ZoomFloppy & Burst Nibbler Demo
This is my Commodore 1541 with a parallel cable installed in it.
This video show that and how the cable works with a ZoomFloppy
and with a Commodore 64.