ColorFabb reel holder

My CEL Robox 3D printer comes with smart reels that transfer filament information when you load a reel. But sometimes I want a colour that isn't on a smart reel, but is available from ColorFabb – especially with their new color-on-demand service. So I created this custom reel holder for ColorFabb to be used in conjunction with my Robox one (thing:2959385). Since there is nothing on the ColorFabb reel centre to locate on, I have made a centre-piece which is a force fit. The spokes should be capable of very slight pressure to fit, but tolerances between printers may require a small percentage increase or decrease. I used PLA to print it and this file works for me okay.
The spigot should be printed upright with the knurled end sitting on the print bed. I did not use a brim but it's up to personal choice. The holder should be printed upright with base sitting on print bed. Revolve as necessary before printing.