Alina,
I went straight to ABS with my printer and have had lots of teething problems trying to fine tune all the temps and settings etc.
You must have a heat bed and use Kapton tape for the ABS to stick too.
I run my bed at about 110 deg which seems to stop warping but every job is different.
Slowing down the print speed or blowing air on the hot strand is also a good technique.
What issues are you having?
Glenn
