robotology / icub-tech-support

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iCubGenova09 (iRonCub3) S/N:000 – Right shoulder pitch cable has one broken wire #1684

Closed HosameldinMohamed closed 7 months ago

HosameldinMohamed commented 8 months ago

Robot Name 🤖

iCubGenova09 (iRonCub3) S/N:000

Request/Failure description

We just saw that the cable that connects the optical encoder to the right shoulder motor E1 that has one wire broken.

Detailed context

The broken wire is the black one. We do not recall any activity that caused this issue.

The glue seems old and hardened.

Additional context

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How does it affect you?

It may block iRonCub experiments.

HosameldinMohamed commented 8 months ago

We will attempt a quick fix if we borrow the tools!

HosameldinMohamed commented 8 months ago

From https://github.com/icub-tech-iit/electronics-wiring-public/blob/master/icub3/pdf/iCub%203_10360_Upperbody%20Harness.pdf

Here's the type of connector and size (AWG):

image

HosameldinMohamed commented 8 months ago

With @pillai-s we crimped the broken cable! We started the robot and joint works as expected!

20231115_152824.jpg

The fix is temporary because the repaired wire is shorter than the others. Also no glue is applied on connector.

In general the whole cable seems short so probably if a new crimping is necessary we might need to replace it!

gabrielenava commented 7 months ago

cc @Gandoo

Gandoo commented 7 months ago

ciao @gabrielenava ho ripristinato il cavo e preparato i cavi spare

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cc @AntonioConsilvio @sgiraz

gabrielenava commented 7 months ago

grazie mille @Gandoo!