[Mechanical resistance problem with Esun ABS filament.]

Someone can help me, maybe few advices?

Thanks

[Mechanical resistance problem with Esun ABS filament.]

Hello Community!

(Sorry in advance if it's not the correct rubric.)

I created a part for my hobby, but I find my printed parts too fragile.

I printed them with Esun ABS and I tried many parameters, but the results are too brittle. ABS material is know as a little bit flexible, but my parts crack for nothing.

Layer: 0.08 to 0.2

Thickness: 0.8 to 1.2

Filling: 25 to 50%

Speed: 25mm/s to 50mm/s

Fan: 0% to 50%

Bed: 100 to 110°C

Head: 240 to 250°C

And now, I'm trying with a cover on front and partly on top to keep a maximum of the temperature (I measure approx. 48°C in the box next to the part).

Many thanks for your help.

(Sorry for my English, I seldom practice..)