Fan with Wire Management - Max Micron and other Prusa i3

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Just upgraded my parts cooling fan shroud with advanced wire management features. Check out this alternative version without wire management if you prefer... http://www.thingiverse.com/thing:1794658. This improved design provides superior cooling over the stock unit, as the fan duct is brought closer to the area that needs it most, resulting in less general air blowing around the nozzle and heat block. The redesign also offers a better view of the nozzle with the duct tucked up closer to the carriage. Additionally, a small shield has been added to the mouth of the duct to reduce direct airflow at the nozzle tip. For maintenance purposes, this design provides better access in case of failure or other issues compared to many modified shrouds that wrap around and block the nozzle. I've also incorporated simple wire management coming off the head to prevent droop and lower wire stress during movement.