I got tired of my Geeetech purge making a mess on the side rail, so I created this box.
my actual print is 2 tone because i ran out of filament mid print, but it still works like a champion.
supports only needed in the upper lip area for the door.
some sanding might be required on the door depending on your printer tolerances.
Printed with 10% infill. Works like a champ easy to use!
Fits many many many other printers that have the wider side rail to set it on.