Hi. This is my first post here. After several months successfully printing with a raft, I am now trying to print with a brim, to minimize waste. I have played with many settings after initially having brim adhesion problems, which I solved by reducing the first-layer height and adjusting temperatures. But now I am having what can only be described as messy buildups of molten filament in certain areas of my bottom layers (top left in photo). Could I please have some opinions as to what I am doing wrong. I am printing on a Diggro (Longer Alpha-3) with PETG at 250 degrees and heated bed at 80 degrees, extruding at 0.1mm. Thanks.
PETG first layer problem.jpg