Here is my version of a Spool Tie for the PLA material. I have found without a tie of some kind the material can get crossed over and bind in use. The tie eliminates this and other issues. I wanted something easy and quick to print. I think it takes about 20 minutes to print three.
Make sure to snap the Spool Ties onto the spool in the right direction and on the right side of the spool. See pictures. If you snap on backwards the part will most likely break. But once snapped onto the spool you leave them there until material is used up.
The Spool Tie works because it relies on the direction of wind, the outside of the spool and feeding the material thru a hole. The bias is felt thru the hole thus holding the material in place. Reamo