I tried calling CuraEngine.exe in the command prompt but I got this error:
ERROR: Failed to load json file: fdmprinter.json
Unregistered setting machine_end_gcode
Unregistered setting speed_travel
maxObjectHeight : 0
M107
G0 X0 Y0 Z5
How can I fix it? And, is it possible to open, and compute printing time of STL files this way?