This is a product that aligns spools inside of the Bambu AMS.

I had issues in the past with spools binding or getting caught along the sides of each spool's holder, so I designed a spacer that keeps spools exactly centered so they cant walk to either side and bind. This cleared up all of my binding issues on all of my spools, regardless if plastic or cardboard. It press fits onto the existing triangle piece between each spool, so no hardware is needed.

Here is the original onshape filepath, modify it to your liking! https://cad.onshape.com/documents/ed1a81847ee8440a339219bd/w/a8f31bb1b861739358ac1f0f/e/06ce13301a61568ae3089912?renderMode=0&uiState=6665d9534773374fee36bfc7

Let me know if this helps(or doesnt help) with your spool binding or tangling issues!