I am having a bad time with some larger ABS prints lifting/curling on the outer edge corners. I am using glass with hair spray. Temps are 110 and 230-240, ten row wide and two layer thick brim and fully enclosed cabinet. I have not tried ABS slurry yet.
The print goes fine for 2-3 hours then it starts to lift.
Here is a question: The print is shaped like a horse shoe. It is a pipe saddle, there are two pieces shaped like a "U" to go around the pipe. Would it be better to print ABS with the "U" facing up, open part up, so the most material is in contact with the bed? Or, flip it the other way so the open part of the "U" is facing down, minimal material contact with the bed. I am going to try this tonight but what are your thoughts on this for ABS.