Filaments.ca EconoFil™ Refill Master Spool for Small Print Beds

This is a master spool compatible with the EconoFil™ filament spool refills by Filaments.ca™ specifically designed as multiple parts that can be printed on small print beds. The complete spool halves are assembled with screws to ensure strength. The two halves are connected using four machine screws and nuts; though I suspect that two diametrically opposite screws might suffice to keep the spool together after a refill is loaded.

Holes for holding the filament end are located through the edg