One of the first things that most people print is some kind of spool holder for their printer. I was no exception to this routine. My design required that the filament spool be located on top of the top frame plate. There were a multitude of different designs on the internet but none really stood out to me. I was going through a junk box one day and found an old Frisbee. It turns out that the spool of filament I was using at the time fit nicely and even “self-centred” due to the curved inner edge. All I needed to do was print a small bearing mount for the middle. I had a few little flanged bearings left over from the idler pulleys which would work with this idea. I know that the bearings wouldn’t be operating in their ideal orientation (and loading direction) but I thought I’d try anyway.

Free ANZ Frisbee from my uni days

It worked well