Printrbot Simple Metal Fan Shroud / Extruder Shield

thingiverse

Here's a different take on a Simple Metal Fan Shroud: redirect airflow away from where it's not needed - the extruder - to prevent blowback and restrict its cooling path completely. Instead of confining air in a small space near the surface with a funnel-style design, I've opted for a protective barrier around the extruder. The outcome is effortless airflow and no backpressure whatsoever.\n.\nThe standard fan shroud creates an intensified flow on the print area by constricting air, while it ensures accurate material deposit at its core point of release but restricts its primary functionality which leads to choked flow of airflow in all the directions around its target surface. My novel approach conceives an expanded space with adequate provision of passage to both sides allowing improved exchange through heat sinks.\n.\nTo learn more about innovative metal-based items check out:\nwww.thingiverse.com/thing:366324 http://www.thingiverse.com/thing:322923 \n \nInstructions\nI highly suggest you make use of the Slic3r settings InTheGarage created to optimize this print - it's accessible via this URL link:http://www.camwatt.com/printrbot-simple-metal-slic3r-settings.html When you run your Printrbot, two separate extruders will become evident - one robust and large like what you're seeing right now, along with a sleek and thinner one that doesn't look quite as substantial. However I personally haven't put this solution through any extensive examination when dealing directly with the slimmer nozzle - I really would love to hear how this protective barrier works out in real-world situations.