15.9
thingiverse
A personalized rendition of the design available at http://www.thingiverse.com/thing:44815 was created using the Customizer tool found at http://www.thingiverse.com/apps/customizer/run?thing_id=44815. For this specific creation, the cursor was set to 100, edges were included, a groove was added, and the diameter was adjusted to 15.9mm. Margin width is at 0.1, type 3 was chosen, $fn was set to 50, and weight was given as 11.
Download Model from thingiverse
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