Thanks. We were moving, so I took some photos when I disassembled it. That was two houses ago now, and it's currently set up in roughly the same configuration, but a bit lower and with fewer duct runs (planer, Table saw, and "other"). One of the simple PLA blast gates came apart in one of the moves, but for how simple they were they've held up well.
Yup! Unsurprisingly, performance is noticeably worse with the bells and whistles turned on, but there is the option in video settings to turn global illumination for lumen off if one’s system struggles too much.
I called delta and was able to get another tailpipe without the integrated drain but the threads were still short. Ended up using a spacer made from pvc to fill the gap and that seems to be working without an issue.
you’re seeing elecrochemical corrosion. if you scratch aluminum in such a way that:
oxide layer is removed, and
finely divided copper is deposited, and
oxide layer can’t reform
you’ll see rapid corrosion of aluminum. normally, alumnium doesn’t corrode because of very tight oxide layer. here, oxide layer is removed first by scratching and this also deposits copper in electrical contact with aluminum. then, citrate can bind aluminum removing some of oxide layer, making aluminum more exposed and so more reactive. if you used gallium as heat transfer compound (sp?) then gallium will also disturb oxide layer and make corrosion of aluminum faster. copper elements are in this case actually protected from corrosion (by dissolving aluminum)
It looks like you are using this one: ArctiClean 1
Which seems to be specifically made for this application and supposedly consists of “citrus and soy based solvents”. Aluminium is solved by highly acidic (like sulphuric acid) and highly basic (like sodium hydroxide) solutions. Which it really doesn’t sound like until it somehow broke down in a way it got more potent.
Was it maybe a specific thermal paste with a metal like mercury or gallium inside? Supposedly they can quickly dissolve aluminium. Of course, I don’t know what happened but maybe it was dissolved by the cleaning solution and then rapidly reacted with the Aluminium of the heat sink. If so, that would still make me wonder about the bubbling and foaming when the cleaning solution comes in contact with the left overs.
I would assume that nobody makes thermal paste out of anything terribly reactive, but… That .gif looks like something out of a NileRed video.
IIRC, gallium makes aluminum get super brittle, which might cause it to crumble like that; but the foaming makes me think that the heat sink might have managed to oxidize all the way through, and it’s aluminum oxide reacting with the cleaner.
I can’t get your images to load, but to me, a materials chemist, it definitely sounds like you’ve managed to dissolve the aluminium and copper by using an acidic solution. Presumably, the cleaning solution contains some electrolyte that should help dissolve oxides, but if the solution is corrosive enough to oxidise the aluminium and/or copper the electrolyte will make the reaction more aggressive by rapidly dissolving the protective oxide layer as it is formed, such that the aluminium/copper is further corroded.
To be fair, this is just speculation based on what I’ve read here. I could maybe give a better analysis if you let me know what solution you’ve used, and what the heat sink/paste were made of, and if I can get the pictures of the resulting product (“ash”) to load.
Copper metal "dissolves" in nitric acid (HNO3). Actually, the nitrate ion oxidizes the copper metal to copper (II) ion while itself being transformed to NO2 gas in the process; the copper (II) ion then binds to six water molecules.
Start with the gasket. I replaced one in my Kohler toilet. Easy and cheap. You have to remove the cylinder to replace it, so you’ll have the opportunity to inspect it for damage.
The twisted chain was 100% the issue. I’m so amazed that you were able to catch that in that shitty video I uploaded above. Thanks again so much for your sharp eye!
Looks lego compatible or at least inspired to me. I’m wary by default from experience with other lego-compatibles. There’s definitely something nostalgic about their catalog but I wish the sets were more detailed. On the other hand the sheer number of different ships they have is pretty cool
They are 100% lego compatible. When I said different, I mean finish (sheen/color) and they don’t have LEGO stamped on each stud. Other than that, they are the same. Lego’s patent expired several years ago, so anyone can make them now. This is a new company that is taking advantage of that and some how they got a Star Trek official license.
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