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The placement error could come from a faulty bottom camera
position and/or from faulty nozzle head offsets.
Like Tony said: post the whole log at TRACE level.
_Mark
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Hi David,
I'll answer your private email here on the list, the answer might
be useful for others to know or discuss.
> you have done anything in the test version (2021-09-25) that might be causing a component placement offset problem?
The testing version is all about camera calibration, nozzle head
offsets, backlash calibration etc. tat all play into placement
accuracy, so yes, there could be a bug (that's why
it is in testing). But I don't think it would be specifically in that
version (that was more about the backlash calibration graphics
etc.). If there is a bug, it would most probably be in one of the
earlier versions.
> Have you written anything about the new Vision Centre Offset boxes in Parts?
No, but why do you ask? You should never use these with simple
passives.
> BTW would it be possible to get the openpnp.org download page to show the timestamp of each file so you know whether you need to do a new download?
There is a link
at
the end of the downloads page. Click it and then enter the
test/ subdirectory, you'll see all the versions, including the
newest one:
https://openpnp.org/test-downloads/
https://openpnp.s3-us-west-2.amazonaws.com/index.html?prefix=test/
> I have been doing test placements and I am getting repeatable offset errors of about 0.4mm in X and 0.15mm in Y.
Again, please
send log (at TRACE level) and machine.xml
_Mark
Hi Mark,
I was just wondering if you have done anything in the test version (2021-09-25) that might be causing a component placement offset problem?
I have been doing test placements and I am getting repeatable offset errors of about 0.4mm in X and 0.15mm in Y.
Have you written anything about the new Vision Centre Offset boxes in Parts?
BTW would it be possible to get the openpnp.org download page to show the timestamp of each file so you know whether you need to do a new download?
Cheers,DG
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> Have you written anything or done a video showing feeder OCR? On the blinds feeder I see various items for OCR but nothing that tells the machine where to look for the text.
Yes.
NOTE: this is only in the Testing Version, i.e. the test branch for now. It is now documented in the Wiki:
https://github.com/openpnp/openpnp/wiki/BlindsFeeder#building-up-the-feeder-array
and here:
https://github.com/openpnp/openpnp/wiki/BlindsFeeder#ocr--qr-code
See also here:
https://github.com/openpnp/openpnp/pull/1220
_Mark
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