Put your printer inside an enclosure. I too had print issues due to cold ambient temps. I made an enclosure for my printer and my prints have never looked better. See this post for what I did. http://3dprintboard.com/showthread.p...ll=1#post78385 You don't have to go to the extremes I did on my enclosure. Simply putting your printer inside a cardboard box will make a world of difference. I just wanted to be fancy with mine. I don't need any additional heating inside the enclosure the heated bed is more than sufficient to heat up the air inside the box.