Calculates total time to 3D print a part
Reads the .gcode of a 3D solid and calculates the total time to print.
The calculation is based on the trapezoidal profile speed for the nozzle.
For that, it is required to know the following:
Vj = jerk speed of the nozzle - mm/s
ac = default nozzle acceleration - mm/s^2
amax = maximum nozzle acceleration - mm/s^2