G-Code for testing the backlash

To run the code with a pen (sharpie etc.) installed.
CNC suppose to do something like that: https://youtu.be/b_eVLcTpR7U

G01 X0 Y0
G01 X0 Y10
G01 X10 Y10
G01 X10 Y0
G01 X0 Y0
 
G01 X0 Y0 Z1
G01 X30 Y30 Z1
G01 X30 Y30 Z0
 
G01 X30 Y30
G01 X30 Y40
G01 X40 Y40
G01 X40 Y30
G01 X30 Y30
 
 
G01 X30 Y30 Z1
G01 X0 Y0 Z1
G01 X0 Y0 Z0
 
G01 X0 Y0
G01 X0 Y10
G01 X10 Y10
G01 X10 Y0
G01 X0 Y0
 
G01 X0 Y0 Z1
G01 X30 Y30 Z1
G01 X30 Y30 Z0
 
G01 X30 Y30
G01 X30 Y40
G01 X40 Y40
G01 X40 Y30
G01 X30 Y30
 
 
G01 X30 Y30 Z1
G01 X0 Y0 Z1
G01 X0 Y0 Z0
 
G01 X0 Y0
G01 X0 Y10
G01 X10 Y10
G01 X10 Y0
G01 X0 Y0
 
G01 X0 Y0 Z1
G01 X30 Y30 Z1
G01 X30 Y30 Z0
 
G01 X30 Y30
G01 X30 Y40
G01 X40 Y40
G01 X40 Y30
G01 X30 Y30
 
 
G01 X30 Y30 Z1
G01 X0 Y0 Z1
G01 X0 Y0 Z0
 
G01 X0 Y0
G01 X0 Y10
G01 X10 Y10
G01 X10 Y0
G01 X0 Y0
 
G01 X0 Y0 Z1
G01 X30 Y30 Z1
G01 X30 Y30 Z0
 
G01 X30 Y30
G01 X30 Y40
G01 X40 Y40
G01 X40 Y30
G01 X30 Y30
 
 
G01 X30 Y30 Z1
G01 X0 Y0 Z1
G01 X0 Y0 Z0
 
G01 X0 Y0
G01 X0 Y10
G01 X10 Y10
G01 X10 Y0
G01 X0 Y0
 
G01 X0 Y0 Z1
G01 X30 Y30 Z1
G01 X30 Y30 Z0
 
G01 X30 Y30
G01 X30 Y40
G01 X40 Y40
G01 X40 Y30
G01 X30 Y30
 
 
G01 X30 Y30 Z1
G01 X0 Y0 Z1
G01 X0 Y0 Z0
 
 
G01 X0 Y0 Z0
G01 X10 Y10 Z0
G01 X0 Y10 Z0
G01 X10 Y0 Z0
G01 X10 Y10 Z0
G01 X5 Y15 Z0
G01 X0 Y10 Z0
G01 X0 Y0 Z0
G01 X10 Y0 Z0
 
G01 X10 Y0 Z1
G01 X20 Y0 Z1
G01 X20 Y0 Z0
 
G01 X20 Y0 Z0
G01 X30 Y10 Z0
G01 X20 Y10 Z0
G01 X30 Y0 Z0
G01 X30 Y10 Z0
G01 X25 Y15 Z0
G01 X20 Y10 Z0
G01 X20 Y0 Z0
G01 X30 Y0 Z0
 
G01 X30 Y0 Z1
G01 X40 Y0 Z1
G01 X40 Y0 Z0
 
G01 X40 Y0 Z0
G01 X50 Y10 Z0
G01 X40 Y10 Z0
G01 X50 Y0 Z0
G01 X50 Y10 Z0
G01 X45 Y15 Z0
G01 X40 Y10 Z0
G01 X40 Y0 Z0
G01 X50 Y0 Z0
 
G01 X50 Y0 Z1
G01 X60 Y0 Z1
G01 X60 Y0 Z0
 
G01 X60 Y0 Z0
G01 X70 Y10 Z0
G01 X60 Y10 Z0
G01 X70 Y0 Z0
G01 X70 Y10 Z0
G01 X65 Y15 Z0
G01 X60 Y10 Z0
G01 X60 Y0 Z0
G01 X70 Y0 Z0
 
G01 X70 Y0 Z1
G01 X80 Y0 Z1
G01 X80 Y0 Z0
 
G01 X80 Y0 Z0
G01 X90 Y10 Z0
G01 X80 Y10 Z0
G01 X90 Y0 Z0
G01 X90 Y10 Z0
G01 X85 Y15 Z0
G01 X80 Y10 Z0
G01 X80 Y0 Z0
G01 X90 Y0 Z0
 
G01 X90 Y0 Z1
G01 X100 Y0 Z1
G01 X100 Y0 Z0
 
G01 X100 Y0 Z0
G01 X110 Y10 Z0
G01 X100 Y10 Z0
G01 X110 Y0 Z0
G01 X110 Y10 Z0
G01 X105 Y15 Z0
G01 X100 Y10 Z0
G01 X100 Y0 Z0
G01 X110 Y0 Z0
 
G01 X110 Y0 Z1
G01 X120 Y0 Z1
G01 X120 Y0 Z0
 
G01 X120 Y0 Z0
G01 X130 Y10 Z0
G01 X120 Y10 Z0
G01 X130 Y0 Z0
G01 X130 Y10 Z0
G01 X125 Y15 Z0
G01 X120 Y10 Z0
G01 X120 Y0 Z0
G01 X130 Y0 Z0
 
G01 X130 Y0 Z1
G01 X140 Y0 Z1
G01 X140 Y0 Z0