calibration pattern

[changhai0551]

where should I get the calibration pattern to run the autocalibrate.m? Because the pattern should have the black bar to check the axis. Or could you please send me the pattern? Thank you very much.

[christianwengert]

I could not find my copy of the pattern anymore, but if I recall correctly the dots where spaced 2mm and had a diameter of 1mm

The main bars are 3, respectively 2 dots large

If you recreate it digitally,. please send me a copy so I can add it to the repo