Modular Spool Holder for Zortrax M200

thingiverse

You can use this setup: with the short extension, you can work with spools up to 70 mm thick; with the long extension, you can handle spools up to 95 mm thick. To finish the job, you'll need three magnets that are each 5x2 mm in size. I've attached a screen shot of where to place the print "position": make sure not to print vertically, as this can compromise robustness.