Decided it was time for the yarn winder to get an upgrade. The tubes fit too loosely so a wad of yarn had to be placed between the tubes and the blue spindle. I redesigned the spindle to include a ridge at the bottom and a groove to fit an O-ring. Overall the new spindle was slightly too big but a little sanding and it is good. I generally like the blue better but functionality is more important.
In the photo it’s clear that the new spindle isn’t the same as the blue one. I must have picked the wrong model to work on. I’ll work with this one for now but it isn’t as sturdy as the blue one. It’ll be fine until I can modify and print the right model with more structurally sound print settings.