That's where I got most of mine from. I did the modular one first and did five levels plus the wind direction at the top. The neighbours say it's hypnotic because you really have to concentrate to notice each layer spinnning in the opposite direction to the one above and below it. The cups that were designed for it take ages to print though and are really heavy. If you look at the
remix someone redesigned the cups so they are lighter and don't take as long to print and uses a lot less material but are still strong. You need the remix bearing holders as well because the end of the cups that plug into them are different. The remixed cups spin with very little wind and look great. The holders that come with the original are excellent and work very well. I used PETG for mine and got a bargain on Amazon for
10x 1m lengths of threaded rod for just £11.