bizarro shares: This is my attempt to make a fan shroud to maximize the airflow from the 40mm fan. I still think the airflow is too forward biased; hopefully further revisions can help make the airflow more even. download the files on: https://www.youmagine.com/designs/printrbot-metal-plus-alternative-fan-shroud Every Thursday is #3dthursday here at Adafruit!...