This is one of the last threads on the subject…, try to find more and see if there is anything that can help you.
In your picture the target plate is shown on the head, if you manually align the camera then it is crucial that you adhere to the direction and order, but use April Taget - also for camera calibration, it is by far the most precise and easy way.
I’m also a little concerned about your image quality.
You may need to adjust your camera’s exposure/light settings.
Ps. It is possible to get a reasonably reasonable and usable camera alignment, but it requires patience and following LB recommendations.
Ps2. My “performance”% rating doesn’t get higher than a little bit into the eighties either
The picture shows a “fine adjustment test plate” which gives me an indication of my lens quality. I use it to calculate an average fine adjustment or to find the most precise camera coverage area on my machine.
(this is the uncorrected result after lens and camera alignment, after fine-tuning I can get about 0.2mm on average on most of my machine bed)
