Empty Spool Turntable Display Stand

I've been using a lot of spools from 123-3d in Ireland, unfortunately they do not have refills, which means I have a lot of empty spools to deal with. And now that I'm going to markets, I wanted to use those spools to help display the chewelry I've been creating. I created these using specifically 123-3d (Ireland) 1kg spools, I have not tried them on any other spools, so adjust accordingly. The center is a PVC pipe that 25mm diameter, I use the small clamps to space out the spools. Each spool sits on a turntable based on the Parametric Thrust Bearing from CJKat. I didn't want spinning a shelf to make the others also shift around, it's just cleaner this way. The shelves that attach to the spool fit 8 shelves neatly. And nothing should need supports for printing. And the shelfs are sized to hold Acrylic Nail Storage Boxes, they are 7.5cm square.