I am using my Prusa I3 for 2 months now without big issues. I am using only ABS on a heated bed with Kapton tape and slicing with Slic3r (1.0.0.RC3).
I bought this red filament and although print quality at 0.1 layer is very nice, i have this issue of delamination as of today while i was printing this Colonel.
The crack started close to the end of the print (it was printing the berret) and when everything cooled down, i found some other cracks near the right ear and on the back of the head.
Theory of delamination points to low temperature but...
I was always printing at 220C/110C and had auto passive cooling on (slower speed), no fan during all of my prints and never had delamination. I did 2 prints, with this red filament, before this delaminated Colonel and they were ok.
What i did, and that's what i think caused this, is that i lowered the speed to 60% (original perimeter speed was 30mm/s) manually from colonels throat till the last layer of the overhang of the chin, and then switched back to 100%. Judging by the result (most of the delamination happens at this point) i am thinking that i probably let it cool too much that it affected bonding. Could this be true?
