3D ROBO R1 Dual Fan Mount "Black Widow" 10mm and 20mm fan setups

You may want to use the short shroud for the rear found here http://www.thingiverse.com/make:170101 Thanks everyone for your positive feedback, I am glad to be a part of this community.

These parts will allow you to install dual 10x40x40mm fans or 20x40x40mm fans on the stock ROBO R1 3D Printer with Hex extruder installed.
Stats:
Stock Robo R1 = ~ 6 CFM
Dual 10mm Fans = ~ 14 CFM
Dual 20mm Fans = ~ 40 CFM

Amazon link to the exact fans I am using. You may notice that it states