Welcome to 3D Bullett.
Do you know the problem of dropping / jumping over the edge filament on the tinny , little spools when you buy the cheapest filament on the market?
Easy and universal: a Spool winder . 3D Printed
The only part you have to buy is the gear Motor : Thank China , not expensive. ebay is full
Link to thingiverse: https://www.thingiverse.com/thing:3070589
