G1 Z50
G4 S10.0
G28
G1 X20 Y20 Z20
G4 S2.0
G1 Z0
G4 S10.0
G1 X200 Y20 Z20
G4 S2.0
G1 Z0
G4 S10.0
G1 X200 Y200 Z20
G4 S2.0
G1 Z0
G4 S10.0
G1 X20 Y200 Z20
G4 S2.0
G1 Z0
G4 S10.0
G1 X20 Y20 Z20
G4 S2.0
G1 Z0
G4 S5.0
G1 X200 Y20 Z20
G4 S2.0
G1 Z0
G4 S5.0
G1 X200 Y200 Z20
G4 S2.0
G1 Z0
G4 S5.0
G1 X20 Y200 Z20
G4 S2.0
G1 Z0
G4 S5.0
G1 X0 Y0 Z20
M104 S0