First Print, what can I improve? (1 reply)

I have finally been able to make my first print on my recently assembled Prusa Mendel. It was supposed to be a cube. It was a good start, I guess, since I have seen worse. Maybe it need calibration. My heatbed is at 35c, and it can't go higher (i don't know why).

I have done no calibration at all, ais there a way to calibrate for this to improve?(bed and endstops are "calibrated")
Thanks,
TN