On Thursday, April 5, 2018 at 2:56:15 AM UTC-5, blisca wrote:

please,i need to repair a circular PCB board inside the rotating camera
head of a robot,a small tractor for sewage inspection.The brand is
Pearpoint




Hi,

Repairing that would be problematic, because it looks like it serves as
a rotating slip ring with multiple connections.

Yes,exactly.A correspondig PCB mounts some spring loaded spheric
contacts(i think they are also called pogo pins),sliding on the circular
tracks.

Is the original company no longer supporting this device?
no spare parts availabile,product out of production since long time,but i
admit that i still have to ask to their support about the drawings

You might repair the traces but it could not be smooth, the connections
thru the brushes or contacts would not be steady or reliable as it
rotates. A replacement is your only real option.
I completely agree,i dont know any product that i could paint even on a
perfectly flat surface,hard enough to withstand the friction
Furthermore the burned PCB could have lost insulation.

I started drawing an identical PCB some days ago
The problem is to get the right distances and positions of tracks and
vias,and some of them almost disappeared ,despite their function looks
trivial(unless strange crossings).
The most precise method i found was doing an accurate photo,and using the
pixel meter of a free image editor as GIMP to get the distances.
Once drawn,i will print it on a transparent sheet to check it versus the
real one

Thanks for your time

Diego

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