I’m finally going to put a print cooling fan on my printer and have a 50mm x 12mm blower fan on the way. Mostly I paint PLA, but recently I’ve been playing with PETG and really like the way it prints.The printer is the rough equivalent of a Folgertech 2020 designed and built by me (before I saw the Folgertech) and I’m running dual E3Dv6 type knockoff hot ends. Going to a single hot end is an option I’m considering to offset the added mass of the fan and duct.Anyhow, is there any sort of consensus on the type of duct that works best? I’d really like to be able to see the nozzle as the print is running.This is probably one of those question that has a different answer for everyone, but I figure I’ll ask and see what you guys with far more experience have to say about it. http://ift.tt/29PvTYt