Customizable Fixed/Removable Drawers for filament spools

Drawers for empty filament spools, can either be removable or not. supplied stls are for a spool with inner=90, outer=194 and height of 55. separator/end cap is for spool opening=53.
Suggest creating a template in you slicer of just the top 2mm of the drawer - verify fit in the spool and use as a template for drilling the holes in the spool. I used common nails for the drawer pins. the end caps could be used with a threaded rod or equivalent to secure the stack of spools together.