40mm Cooling Duct for Flexmendel

This is printed in ABS. I would not advise printing it in PLA since it is close to the heater block.

This is the 40 mm cooling duct I've designed to fit with the noctua FLX 40 mm fan (https://www.amazon.com/Noctua-Cooling-Blades-Bearing-NF-A4x10/dp/B009NQLT0M/ref=sr_1_fkmr0_1?ie=UTF8&qid=1492877597&sr=8-1-fkmr0&keywords=noctua+40mm+flex)

I wanted to use this fan because it's insanely quiet and it goes with my silent step stick mod (https://www.amazon.com/BIQU-TMC2100-StepStick-Stepper-Ultr