Based on CHEP's design: https://thangs.com/designer/CHEP/3d-model/Creality%20K1%20Max%20Spool%20Holder-948987

Which is based on Fred Boisselier design: https://www.printables.com/model/540699-creality-k1-max-side-load-spool-holder

I rotated the teeth 90 degrees as per the original K1 Max spool holder because when I tried to install a roller holder found that it was rotated 90 degrees. I also made the PTFE hole a bit larger (4.5 mm)

You'll need one M3 0.5 x 12 and one M3 0.5 x 16 screw. Plus a longer section of PTFE. More detail in this video: https://youtu.be/BQM7xBcZh00

In case you're interested this is the Creality TwistLock Rolling Spool Holder that I use in the photo.