So confused, it looked like this ABS print was going beautifully. I came home and noticed enough cracks finally developed to make the entire structure topple and the print fail. Hotend temp 230° bed temp 85°. Was stuck beautifully to the print bed even after failing, so confused. Why would it start cracking after being laid down beautifully? It looks like the cracks didn't form until at least 50 layers later.