This is to prevent the filament from going over the spool and getting tangled between the holder and the frame. as per picture.
Not a remix, more of an accessory for the Filament spool ball bearing holder.
dimension for the mount was taken from
the ball bearing holder works well, probably a bit too well. sometimes, the spool would unroll a bit too much, and the filament can go over the spool and get tangled between the holder and the frame of the printer.
i did not want to take the risk of this happening during a long print, when there is no one actively monitoring the print.
FreeCad file also included for anyone who wants to remix.
i am using the one with the 55mm notch on my Creality CR-10S Pro, with PanTech branded filaments.
Slide it up, and the filament spool can be remove,
put a new spool in, slide it down until the notch is between the spool walls, but not too much, else the top of the spool will rub on the guard, and the spool will not move freely.
p.s not sure what's going on with the aspect ratio of the pictures in thingiverse, but pressing on View Original works fine.