Quick Change Sample Spool Holder

This is a "Quick Change" sample spool holder, designed to hold Alien3d samples that are approximately 90mm inner diameter, 145mm outer diameter and about 20M in length. You can buy Alien3d samples here, which come in the Monthly UFO box: https://www.alien3d.us/product-category/ufo-box/ (Side note: printing a single spool holder side with 10% infill will use about 14M or 48g of filament, which will allow you to print using a filament sample. You will need to print two of these).

This spool holder is held together with 4 neodymium magnets on each spool half (so 8 total are needed). This will keep the spool holder firmly in place while you are printing, and it makes it super easy to change filament. Simply pull it apart and swap your sample roll. You can get a pack of Neodymium disc magnets for very cheap, under $10 for 100.

PLEASE USE CAUTION! Neodymium magnets can easily break and keep away from children (you don't want them swallowing them).

https://www.banggood.com/100pcs