I liked the spool rack published by “Bananana” but the PVC I purchased did not fit. I bought 1-¾ PVC at the local supply store but the actual OD of it was 47.8mm (1.88") so I remixed the design to fit the larger PVC. The three rack components fit snugly together. I used a rubber mallet to seat them. The PVC slid right it as it as a perfect, snug fit. I made one center piece with the Bambu Lab logo and there is a version without the logo.