http://ift.tt/239SGRJ quite sure what’s going on here, but it’s clear that it has to do with the layer changes. Here’s some settings:Taz5 .5 mm nozzle.35 layer height, 2.85mm black lulzbot ABS235 C extruder, 110 C bed with hairspray70/70 inside/outside perimeter speed,150 travel30 bridge speed70 infill with 45mm/s top solid infill, 25% hexagon45 degrees starting angle, .15mm overlapexternal perimeters first, avoid crossing perimeters, retract when changing islands, and wipe after retract are all on.retractions settings are: 2mm length on move, 25 mm/s, 1mm z lift, .2mm extra on restart, .75 minimum travelshould I change the extra retraction on restart to a negative? http://ift.tt/1Uc7OgU