Filler Spool Roller Remix

I've been able to print the entire source from which I remixed this spool, but the spool portion has failed every time. I've tried printing it with various settings and slicers at least 20 times. The only one I got to print, I had to do so with it horizontal, which meant removing support material so it wasn't round and basically removed the entire point of making the filament spooler. So, finally, I decided to split it into 2 pieces. One has a square peg, the other a square hole. It works now. I was able to print both parts and put them together. No glue or anything else needed.

Print with 20% infill, normal PLA, and with supports from the print bed. Worked just fine.