Can you post examples of the Start and End code, I can open up my .gx file but I don't know where to stop for the cura settings, M108 or M106???
;start gcode
M118 X70.28 Y21.00 Z18.01 T0
M140 S50 T0
M104 S200 T0
M104 S0 T1
M107
G90
G28
M132 X Y Z A B
G1 Z50.00 F400
G161 X Y F3300
M7 T0
M6 T0
M651
M907 X100 Y100 Z40 A80 B20
M108 T0
G1 X70.28 Y21.00 F6000
;preExtrude:0.20
;preExtruder0
M108 T0
G1 Z.20 F400
G1 X70.28 Y21.00 F6000
G1 X-49.72 Y21.00 E17.4017 F1200
;raft
;layer:0.27
;shell
M106
Thanks