I have some strange issues. I am trying to print some ABS parts. The part itself is looking good but I have some problems with the support structure. As you can see it starts to become brittle and burnt in some areas. The support is crumbling and sometimes it sticks to the printhead which, in the worst case, causes a failed print.
I use Innofil ABS, print at 245/250°C and the heatbed is at 100°C, print speed is 45mm/s, 0.1mm layer and I use a 0.4mm nozzle. the cooling is on.
Does anyone of you have an idea how to solve this problem?