I use many different sized spools, some 1kg normal sized and some 2-3kg larger spools. So I needed something that would be able to accommodate the varying sizes. I simply remodeled the 2kg large rollers so that one side of the spool rim is guided and the other side is open for the varying width of whatever spool you happen to be using that day.
Should be able to accommodate spools with ~135mm width
I also uploaded the Fusion 360, and step file if anyone is interested.
The author remixed this model.