Don't throw out your old filament spools.... reuse them!
This design is based off of the spool used by Sunlu filaments (the only PLA I'll ever use now). It should however work for any spool that has an inside hole diameter of 56mm - 65mm. If your hole is larger I'd be happy to upload a shim that would make it work, so just let me know in the comments and I'll make it. Likewise, if you wish to have any dividers in the drawers just let me know as well and I'll make it happen.
This design allows for magnetic closure, but is not 100% needed. It just makes it much nicer. Also, since it requires drilling 6 holes in the spool, it should be pretty universal. The design is modular, so you can stack as many spools up as you want by simply printing out an extra sleeve for each spool.
I've uploaded 2 different lids. The Radioactive lid looks really great once done but is a pain to print correctly since it requires a lot of small supports. If you just want a flat lid, it's in there too.
What I used:
Sunlu PLA+ Filament and Spool - https://geni.us/BPR68
8x3mm Magnets - https://geni.us/wV27d
Ender 3 Printer - https://geni.us/YSiqQY
Yellow and Black
Print bed only supports are needed for the radioactive lid and drawer. Rest do not need it. All parts fit on 220x220 Ender 3 build plate.
Highly recommended for a brim on the lids, pins and selves to help with bed adhesion. All parts should be orientated correctly for ease of printing.
Print all parts
Press pins into top and bottom of the drawer where the holes are and leave about 3-4mm sticking out. Pins should fit tightly, so don't ream out the drawer holes too much or you may need to glue.
Drill holes in the corners of the spool as shown in the photo. The Sunlu spool makes it easy for this reason.
Press magnets into the magnet holders in the drawer. If they don't come out again, then glue is obviously not needed. If they come out, then you'll need to glue. All mine fit in nice and snug.
If using radioactive lid, place all pieces in the recesses to ensure they are in the right spots. (Sorry that they are slightly different from each other)
Glue radioactive symbols into place, and glue any magnets or pins that don't fit snuggly.
Install drawers into the spool and close the drawers.
Drop magnets on top of spool to see where they sit with the drawer closed. Be aware of orientation and glue the magnets to the top of the spool. See photos
- Once glue is dried, insert sleeve into the spool and fix to the base and lid to the top of the sleeve. If it's too tight, file/sand until the fit is snug. Only glue if you do NOT wish to expand it further with more spools later on.