"Hi
Which printer are you using? Right now I'm using Flashforge Dreamer http://www.flashforge.com.hk/dreamer.html and I always use PLA for printing. It is difficult to print ABS as it easily wraps and has a bad smell."
"I would go for Flasgforge's 3D printer Finder. Although it can only print PLA , it is suitable for the beginner as it is stable during printing and the price is quite low."