Dont you need to smooth out the texture? hmm.. i read somewhere u can use some fumes to smooth out the bumps...
"Acetone vaporing is a great way to smooth ABS prints. For PLA, however, acetone smoothing does not work. ... This is a pity, since PLA is much easier to work with than ABS. We found some solutions for smoothing PLA, but most involve rather dangerous-sounding chemicals such as Tetrahydrofuran and Dichloromethane."