Adimlab Gantry Volcano Part Cooler

This mod is for Adimlab Grantry part cooler using ring type configuration. Required 5015 fan. See article for some testing.
http://hydraraptor.blogspot.com/2016/02/cool-maps.html

9/23: Updated holes pattern to match 5015 fan.
10/3: Added inside radius for smooth ring transition. Print as oriented without support.
10/4: Updated bracket attachment to allow for more up down adjustment.
11/24: Added 1 hole to the bracket for stability. Uses existing LED hole.