How it was built?

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03 Nov 2020 18:56 #188250 by aleksamc
How it was built? was created by aleksamc
Hello, all.

I found on youtube such amazing videos



How to do such things, they are amazing!!!

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04 Nov 2020 06:20 #188288 by aleksamc
Replied by aleksamc on topic How it was built?
Unforutunatly in that topic only basic problems of motion.
I'm interested how to make such thing as on second video, with camera and point motion. And how to connect openCV to linuxcnc.

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04 Nov 2020 10:29 #188299 by phillc54
Replied by phillc54 on topic How it was built?
The camview widget in Qtvcp uses opencv.

linuxcnc.org/docs/2.8/html/gui/qtvcp_wid...ml#_camview_widget_2

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04 Nov 2020 14:22 #188311 by Soniaox
Replied by Soniaox on topic How it was built?
That is really amazing.

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05 Nov 2020 17:55 #188417 by aleksamc
Replied by aleksamc on topic How it was built?
I wonder, this machine pick and place electric components.
How they fix at their places on PCB? Does it's used some glue?

I tried to solder such small components (resistors, capasitors) but they stick to solderer or moves with some magnetism or static, it was very difficult.

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05 Nov 2020 20:17 #188436 by PCW
Replied by PCW on topic How it was built?
Typically the parts are just held by gravity + the stickyness of the solder paste.
Parts on the reverse side of the board are often glued on to allow wave soldering.
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05 Nov 2020 20:19 #188437 by tommylight
Replied by tommylight on topic How it was built?


I tried to solder such small components (resistors, capasitors) but they stick to solderer or moves with some magnetism or static, it was very difficult.

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05 Nov 2020 23:04 #188458 by dm17ry
Replied by dm17ry on topic How it was built?

Unforutunatly in that topic only basic problems of motion.
I'm interested how to make such thing as on second video, with camera and point motion. And how to connect openCV to linuxcnc.


i think i posted the link here somewhere to the github where i put the whole thing: github.com/yur7aev/linuxpnp if you want to know how exactly it was done...

the second one (mouse dragging the camera image) is really straightforward:

github.com/yur7aev/linuxpnp/blob/master/configs/pnp/vision.py exports 4 HAL pins
jog-x, jog-y, jog-scale, jog-enable
which are updated on
button-press-event, button-release-event, motion-notify-event
and are connected to
net cv-jog-enable	cv.jog-enable => axis.x.jog-enable axis.y.jog-enable
net cv-jog-scale	cv.jog-scale  => axis.x.jog-scale  axis.y.jog-scale
net cv-jog-x		cv.jog-x      => axis.x.jog-counts
net cv-jog-y		cv.jog-y      =>                   axis.y.jog-counts
and that's basically it. it was a proof on concept after i played with OpenPNP's somewhat non-conventional way of dragging the camera... :)
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07 Nov 2020 17:47 - 08 Nov 2020 04:42 #188601 by aleksamc
Replied by aleksamc on topic How it was built?
Thanks a lot Dmitry, for explanation. I hope, I will try somethink with using your ideas.

Dm17ry, You have solved very important and difficult task with this project.
Last edit: 08 Nov 2020 04:42 by aleksamc.

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