Hello all,
I think I found a bug in Cura Software.
In start gcode you can implement the variable {speed_travel}. In Cura (German Version), it is related to the input field 'Bewegungsgeschwindigkeit' (travel speed)
The unit at input field in Cura is [mm/s]. If gcode is generated the value is transmitted 1:1 to gcode, that means e.g.
Input field Cura: 'Bewegungsgeschwindigkeit' (travel spped) = 120 mm/s
printer start code e.g. : G1 Z15.0 F{speed_travel} ;move the platform down 15mm
generated gcode : G1 Z15.0 F120 ;move the platform