Cannot calibrate camera lens (will not capture image)

[Stroonzo (Jeff)]

When you are running through the calibration, are you following all of the guidelines (such as affixing the pattern to a rigid backer)?

See the following linked info as well as the two links in the thread:

Camera Calibration Image Print at its Original Size = Larger than Advised

You have two potential issues: Higher angle cameras produce more distortion on the sides of the image, and compress the image together there, so the sides will be less accurate than the middle Higher resolution is generally recommended for larger machines - You’re looking for more image pixels distributed over the area of the bed Those will work against you a bit, but if you want it for rough placement (within a mm or two) it should be fine. You will need to angle the card toward the c…