Comments by "Schrodingers Cat" (@schrodingerscat1863) on "Solar Eclipse Timer" channel.

I have worked on precision glue ups and they did literally everything wrong. There is no way to determine the thickness of the resulting layer of adhesive here and also the application technique is going to create voids all around the joint. Normally the adhesive would be poured into the ring, that would then have a vacuum pulled on it to expel any gasses from the adhesive before the body is lowered into it making sure there is even amounts of adhesive squeezed out around the joint. Also you need to set a datum all around the mating surfaces to be able to measure thicknesses of the resulting adhesive layer. Only then can you be sure that the joint is to spec. Then after the joint is cured it can be scanned with xray or ultrasound to make sure it is within tolerances with no voids. Also this should all be done in a clean room environment and mixing the epoxy should be done in a controlled way, normally by machine to guarantee consistency. There is no way any of the work being done in this video could be certified.
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@cremebrulee4759 Stockton was an idiot, no idea what he was doing yet totally convinced what he was doing was just fine. People like him are dangerous when in control of something can kill people if it goes wrong. I am absolutely shocked that at no point was any certification required for that monstrosity he had cobbled together. Even the stupid game controller he was using has a laundry list of problems. Part of a critical control system, it was wireless making it prone to failure, contained li-Ion rechargeable battery which could fail filling the air with toxic smoke. Just no thinking at all involved in any of the decisions being made just thought he was being so clever using cheap crap rather than thinking about why it is normally so expensive.
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@camojoe83 It wouldn't have made a difference ultimately but it's indicative of just how bad the overall approach to design and implementation was. Using carbon fibre for a pressure vessel operating under compression is pretty much retarded and anyone with any experience with composites would know full well that carbon fibre had no strength under compression. Also mating carbon fibre to titanium is a disaster waiting to happen because of the widely varying expansion coefficients. I am really surprised the thing didn't implode the first time they tested it.
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@qarnos No, the people going on these dives were tourists, they have a reasonable expectation that the submersible being used has been built and tested properly. They would have no idea how to even check if the thing was safe. Plus Rush hired a person who was well respected in the industry to go with them adding authenticity to the endeavour. To be frank, that guy knew better and was as culpable as Rush for the deaths of the other passengers.
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@softwarephil1709 In a way I wish he hadn't been in the thing when it was destroyed, because then he would have had to strand trial and been jailed, that way maybe other reckless morons that consider themselves somehow above reality might think twice.
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@machineman8388 They just got lucky on the first few dives, it was bound to fail at some point because they even ignored their own acoustic warning system which was going off constantly on previous dives. This showed that the carbon fibre was degrading with each dive but it was ignored.
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Yeh, I have done precision glue ups of composites and literally everything about this was done wrong. There is no way any of it could ever be certified.
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@adamemmrich283 Exactly no one involved in that had any clue what they were doing. I understand they were actually grinding deformations out of each shell of the carbon fibre layup before applying the next shell. Everything about what they did during construction of that thing is horrific.
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@TheresaHall-vl1bm Exactly, lack of certification for that thing is serious problem. Allowed that clown to cobble together a death trap and take paying passengers in it.
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They tested a scale model of it which failed, they still decided to build the full size version and put people in it.
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It matters, the places in the hull that had buckled fibres would have uneven load distribution causing stress points and that is without grinding. Grinding just makes it even more likely for delimitation to occur.
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@nancythane4104 Exactly.
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@Nick-b7b9s Exactly, even people who cast resin miniature figurines know to vacuum degass the resin after mixing to remove trapped air pockets before using the resin.
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Not the case, they had bucking of the fibres which is why they used a grinder to smooth the surface prior to applying the next layer. The buckling in itself is a major problem when creating a pressure vessle like this because it creates a spot where loads are not evenly distributed. The more I hear about this thing the worse it sounds.
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@michaelallen1432 I thought bonding the flanges to the ends of the tube was the real low point. That really was amateur hour.
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@doggonemess1 Exactly, there was no one on this project that seemed to have a clue what they were doing because all the ones that did got fired for not being happy with what was being done.
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@solareclipsetimer Why does this not surprise me, the whole thing was amateur hour at best. In fact most amateurs wouldn't have had so little disregard for process and best practice. Even the glue up of the domes onto the carbon fibre cylinder was a joke, I literally watched a video of them doing it shocked and disgusted.
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When I saw this glue up I was shocked to say the least. I have worked on composite bonding implementations like this and absolutely nothing about it was done correctly. First the epoxy was mixed by hand which is going to lead to uneven unrepeatable mixing of adhesive and activator. Also it was never degassed after mixing meaning it would be full of small voids. Then application was done by hand in the most slap dash fashion I have ever seen. Then surfaces were just pushed together with no thought to obtaining an even layer of adhesive. All of this was done in a filthy workshop meaning all kinds of contaminents would have been present, some of them weren't even wearing gloves while touching surfaces prior to applying adhesive. In short it was a total mess.
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@ Did they actually establish the first point of failure, I haven't been following it that closely. The wreckage looked a total mess they were bringing up so not sure if they even could.
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@Ragazzo-Carino Everything you said there is 100% correct. All totally valid concerns and issues with the design and implementation.
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