Best practice with ABS: no delamination, no cracking, no warping.

[abuharsky]

At this moment I have few succeeded prints (big models up to 150mm in diameter and up to 180mm in height) at 280C without any enclosure and for some models with enabled extrusion cooling fan(!!!):


1) single perimeter, 30mm/s, 0.4 nozzle, 280C, extrusion cooling fan OFF
(top no cracks, it is because of the fact that one of the perimeter for this detail is not enough or need support)





2) 2 perimeters, 70mm/s, 0.4 nozzle, 280C, extrusion cooling fan ON (full speed)