up looking camera advanced camera calibration leaves me stranded

[NismoBoy34]

Hello all hope you are well . 
Thank you for the advice so far its gotten me to progress .
Ive had a few issues with possibly a corrupt machine.xml ( reference head H1 would not open reference Nozzle ) I ended up deleting and recovering from a previous machine.xml .

Now in doing that ive noticed that bottom camera placements ( with adjustment ) are far from the correct co ordinates on the PCB .
If i disable bottom vision correction i get semi perfect placements for the 0603 components the few i have tested.

Please kindly help . Possibly i have missed something .
Thank you in advance .

[Jan]

Hi Nismo!
This sound like a vision pipeline setup issue. Did you checked the
visual alignment process?
- put a part on the nozzle and move it over the bottom camera
- use the "Test Alignment" button on the Bottom Vision Settings tab of
the part.
- if the result is not satisfying, adjust the pipeline using the button
on the same tab.

Jan

PS: I've done the same procedure yesterday and found, that the
"Threshold" needs adjustment.

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[mark maker]

There instructions and a small animation in the Wiki:

https://github.com/openpnp/openpnp/wiki/Bottom-Vision#tips

[NismoBoy34]

He @mark confirm is the picture exclusion correct from what you can tell in the picture above ?
PS i have installed a green card on my nozzles to help and assist with part identification .
Will run through the wiki again but seems i have followed the steps correctly a few times ( have run calibration about 15 times ) but incase i missed something will give it a once over again.

[NismoBoy34]

If i run a test alignment with out move ticked i get  a reasonably good result ...
Then with move ticked the nozzle moves away from the center after checking the part as per the second image .

[mark maker]

I don't understand your question and/or what that strange image in the screen-shot is.

_Mark

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[NismoBoy34]

Also have run a bottom vision pipeline to be certain .

[NismoBoy34]

@mark this image attached seems to block out the important part of the Nozzle and the part from view 

[tonyl...@gmail.com]

>this image attached seems to block out the important part of the Nozzle and the part from view

Is that image taken with Advanced Camera Calibration enabled and the others with it disabled? That image appears to be from a camera that is rotated and tilted too much so that the vertical pixel (where the crosshairs intersect) doesn't even fall within the valid pixels - the rotated rectangular part in the upper left are the valid pixels and the crescent shaped part appears to be an artifact of lens distortion correction.  Did you physically adjust your camera and/or re-run the calibration between some of the images you posted? I looked at your machine.xml and it does show you have quite a few outlier points so I suspect you may also have some problem with properly detecting the nozzle tip during the calibration process.

Tony

[NismoBoy34]

@tony thank you for the reply as it would seem i had that thought and made a crude but stable form of up camera calibration using a mirror . ive aligned as best i can using the camera sensor as the focal central point . Surely this would give good enough results from a parallel vision perspective ? If im wrong please advise where i could run correction ?

[NismoBoy34]

@ Jan thank you for the tip we are on the road to success ! Thank you @tony and @Mark
Please see example of placements didnt have double edge tape so used some Flux to keep it sticky 

[tonyl...@gmail.com]

>  If im wrong please advise where i could run correction ?

Either run it via Issues and Solutions or follow the instructions here.