EPD cable weight between Rx boards and QT boards

The take away: regularly check the cable tension between Rx boards and QT boards! The cables have small coefficients of friction and will likely slowly slip through their supportive cable ties and start again to tug at the connectors!

Ahh, look how clean and tidy everything is before any cables...






Look at this now!


There is a ton (almost not an exaggeration) of cabling between the Rx boards and the QT boards. In order to take the weight of the cables off of the Rx or QT board connectors, these square stickers were used; however, they did not last long. The weight of the cables is simply too much. 



The weight of these cables can pull especially hard on the cables at the top of the connectors, which probably caused the failing of one connector (so far!).


In order to relieve the stress, I cable-tied nearby "cable groups" (say, of about 5 connectors) together, then cable tied those groups to each other. I could then take the weight off of all the cables by tying the groups to the handles of the crates. I was being rushed by short accesses when doing this (in December 2019, for reference), so it is a bit sloppy, but the weight is now sufficiently off of the connectors. At a later time, when we have a long access, we may want to re-do this, but we definitely want to regularly check the cable tension! I'm not sure how much gravity will slowly pull these cables through their supportive cable ties, and we don't want to forget about this until we see another tile go out.