How do you model the mecanum rollers?

[Leav]

Ok so this is somewhat of a puzzle I think..

Even though my team has never used mecanums, I've been thinking about them and the design challenge they pose.

So it got me thinking about making a CAD model, and while running the model through my head, the most obvious problem was the rollers.

so this is a puzzle for you: how would you model the rollers of a mecanum wheel?

to give everyone a chance, please post your method in a white font, requiring someone to highlight it in order to read it:

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1)create a cylindrical roller, and a giant tube with an ID of the desired wheel OD. extrude cut with the tube (or use boolean subtraction: result=roller-tube). now the roller has a profile on it which can be used in order to revolve cut the rest of the roller.

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this method is still somewhat convoluted in my opinion and I'd like to hear something easier and/or cleaner (or just any other creative idea!).

Ready? set. CAD!

-Leav