got some cable pr0n for you all. 🤮 who in their right mind would trust their life to this crap. smh.
Posts
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oh wow, the Titan Sub accident investigation has a bunch of new documents on the US Coast Guard site: https://www.news.uscg.mil/News-by-Region/Headquarters/Titan-Submersible/ -
oh wow, the Titan Sub accident investigation has a bunch of new documents on the US Coast Guard site: https://www.news.uscg.mil/News-by-Region/Headquarters/Titan-Submersible/i'm getting some strong "my first gamer PC rig, what do you think guyz" vibes here
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oh wow, the Titan Sub accident investigation has a bunch of new documents on the US Coast Guard site: https://www.news.uscg.mil/News-by-Region/Headquarters/Titan-Submersible/the onboard computers appear to be off the shelf Neousys Nuvo automotive embedded computers. wow, i've worked with these before.
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oh wow, the Titan Sub accident investigation has a bunch of new documents on the US Coast Guard site: https://www.news.uscg.mil/News-by-Region/Headquarters/Titan-Submersible/omg the CO2 scrubber system is just a plastic container (for the chemical pellets) with a PC fan hot glued on top
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oh wow, the Titan Sub accident investigation has a bunch of new documents on the US Coast Guard site: https://www.news.uscg.mil/News-by-Region/Headquarters/Titan-Submersible/more unplanned shock testing. the thing was pointing straight up with everyone in the sub up against the back wall, then it kept slamming into the launch platform for an hour. that must have been miserable.
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oh wow, the Titan Sub accident investigation has a bunch of new documents on the US Coast Guard site: https://www.news.uscg.mil/News-by-Region/Headquarters/Titan-Submersible/ahh yes unplanned environmental testing. this thing was stored, uncovered, outdoors, near the ocean, for 6 months! unbelievable.
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oh wow, the Titan Sub accident investigation has a bunch of new documents on the US Coast Guard site: https://www.news.uscg.mil/News-by-Region/Headquarters/Titan-Submersible/final hull testing was done to a safety factor of uhhhhhhhhhhh 1.09. that's more of a danger factor.
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oh wow, the Titan Sub accident investigation has a bunch of new documents on the US Coast Guard site: https://www.news.uscg.mil/News-by-Region/Headquarters/Titan-Submersible/omg they reused the titanium domes and rings from the prototype!? also they covered the outside of the hull so there was no way to visually inspect it.
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oh wow, the Titan Sub accident investigation has a bunch of new documents on the US Coast Guard site: https://www.news.uscg.mil/News-by-Region/Headquarters/Titan-Submersible/looks like the prototype hull failed. i can't really see the crack the report discusses but it looks like some sort of spalling or layer separation.
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oh wow, the Titan Sub accident investigation has a bunch of new documents on the US Coast Guard site: https://www.news.uscg.mil/News-by-Region/Headquarters/Titan-Submersible/yep, this little guy.
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oh wow, the Titan Sub accident investigation has a bunch of new documents on the US Coast Guard site: https://www.news.uscg.mil/News-by-Region/Headquarters/Titan-Submersible/oh wow, the Titan Sub accident investigation has a bunch of new documents on the US Coast Guard site: https://www.news.uscg.mil/News-by-Region/Headquarters/Titan-Submersible/
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this is a graph showing the infamous GPIO bug in the new Raspberry Pi RP2350 microcontroller.this is a graph showing the infamous GPIO bug in the new Raspberry Pi RP2350 microcontroller. the scale is not mA, it's actually uA (phew). but you won't believe what I went through to get this data! 🧵
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so i did something totally insane.@foone oh yeah plenty of chips with their legs rusted off
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so i did something totally insane.HSC originally used black ESD foam which degraded horribly over the years. i hate that stuff. i hate the sour smell it gets when it degrades, and i hated having to pick hundreds of chips out of crumbling, decaying foam.
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so i did something totally insane.* yes, many of the drawers (for MOS parts) have ESD protection in the form of an aluminum foil layer. i applied it with glue and this custom 3D-printed jig.
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so i did something totally insane.OK some answers to questions you might have:
* i don't want to run an electronics business so i'm not planning to sell any. doesn't mean i won't give parts to friends occasionally.
* yes, i have a catalog of parts organized in a spreadsheet, which makes it much easier to find things
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so i did something totally insane.if you've been wondering why i haven't been posting as prolifically this year, this is the major reason.
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so i did something totally insane.over the last few months, i spent hours and hours carefully packing chips into separate drawers. by putting multiple part numbers into a single drawer, i was able to reduce it down to just 12 cabinets.
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so i did something totally insane.after separating out my share of the parts, i stuffed them into thousands of plastic ESD-safe bags, each labeled with a sharpie and stored in a moving box.
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so i did something totally insane.we ended moving 80 cabinets -- containing 4,000 plastic drawers, to an undisclosed location where we could slowly pick through the collection, catalog it, and separate it out three ways.