Calibration Shapes Tests - 3DPrints 100mm 200mm xy and XYZ towers

This is a test to calibrate your print
I used it to test my delta, but you can use also in a Prusa or other 3d printers!
Is a 100mm square a square? A circle is a circle?
Where are the X Y Z towers in a Delta?
Is 1mm line 1 mm?

Control and check:
1 your center
2 10cm diameter Circle
3 A 100mm square
4 Your X and Y points
5 In a DELTA you can see where are XYZ tower!
6 200mm -x +x -y +y points
7 30/60° degree lines

After a print you can measure it and if you find differences you