Topic: PWM cooling fan questions
I'm finally getting around to working on adding a PWM cooling fan to my mostly stock solidoodle 2, and I'm wondering what kind of nozzles to blow the air work best for people? I've seen annular rings that surround the hot end, and single and double nozzles to blow one or two streams of air. Any pros or cons of one design versus another? (I think I remember at least one person complaining that the annular ring blocked visibility).
