Grippy Cups & Bin - Helical Knurling - TK1

I've been playing around in CAD trying to come up with a knurling pattern that 3dprints well and offers decent grip. 

I liked the aesthetics of this pattern so I decided to make a few storage cups/bins to test it out in person.

I really like the way this pattern looks and feels. Check it out and let me know what you'd change! I'll gladly take requests for different sizes or more coarse/fine pitched helices.

Inner dimensions are listed in each file description.