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Memento posted:Out of curiousity, what level of radiation hardening do these systems have? I think the dragon capsule just has 3+ normal computers and does a majority vote on what to trust. It doesn't have the normal radiation hardness of other craft. But it also is only intended to go from Earth to the ISS. It isn't meant to go into the radiation belts or anything.
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Dec 31, 2020 09:57
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Memento posted:Out of curiousity, what level of radiation hardening do these systems have? ISS is well within the ionosphere, so fault tolerant processors (essential in any flying vehicle anyways) plus a large frame and a little extra radiation shielding should work just fine for the durations that they're in space, what you'd see in a satellite for example. A vehicle designed to travel to Mars, or perform extended Lunar operations would need a lot more radiation hardening to perform well, and might cross the threshold where COTS electronics aren't suitable for the job.
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Dec 31, 2020 10:20
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Cojawfee posted:I think the dragon capsule just has 3+ normal computers and does a majority vote on what to trust. It doesn't have the normal radiation hardness of other craft. But it also is only intended to go from Earth to the ISS. It isn't meant to go into the radiation belts or anything. Our atmosphere attenuates a lot of radiation. I can almost guarantee that radiation was a design factor in the electronics. For example picking components on a rad parts list like this one https://radhome.gsfc.nasa.gov/radhome/RadDataBase/RadDataBase.html, providing shielding via mounting location/design, and via subsystem testing in a radiation test facility. Got a source on a crewed spacecraft having less “normal radiation” mitigation than “other craft”? What other manned craft would there be?
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Dec 31, 2020 10:21
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Cojawfee posted:I think the dragon capsule just has 3+ normal computers and does a majority vote on what to trust. It doesn't have the normal radiation hardness of other craft. But it also is only intended to go from Earth to the ISS. It isn't meant to go into the radiation belts or anything. I believe (and stand to be corrected) Dragon uses three hardened ARM based modules as the NASA human rated specs call for redundant modules that if one gets affected by cosmic rays, get rebooted as that almost always will clear the radiation induced error. So the hardware seems to be fine. The software I dont know what to make of tho. While the gruntwork is C++, the screens are basically a webterminal / Javascript running on a Chromium system.
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Dec 31, 2020 13:21
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https://i.imgur.com/Hgo0iEJ.mp4
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Dec 31, 2020 16:42
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Horrible owner failure caused 100% of that.
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Dec 31, 2020 17:25
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Well, I mean the suspension was already broken. It just broke more.
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Dec 31, 2020 18:42
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Darchangel posted:Well, I mean the suspension was already broken. It just broke more. one weird trick to convert suspension issues into frame integrity issues. Raptor owners love it.
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Dec 31, 2020 18:47
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suspension has been suspended
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Dec 31, 2020 18:52
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I love how the drivers of cars like that are always super leaned forward and with the seat at its lowest and/or super short.
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Dec 31, 2020 19:45
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He also appeared to have been poo poo talking or otherwise being a dick, given the body language of the guys around the car at the beginning, and his somewhat rapid exit.
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Dec 31, 2020 20:23
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MrOnBicycle posted:I love how the drivers of cars like that are always super leaned forward and with the seat at its lowest and/or super short. I'll never understand this. At what point is it comfortable?
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Dec 31, 2020 22:11
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Dave Inc. posted:I'll never understand this. At what point is it comfortable? They're not. That's usually people who are either terrified of driving, not good at it, or both.
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Dec 31, 2020 22:16
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https://twitter.com/24wheel_news/status/1344646779183140866?s=21 Woops
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Jan 1, 2021 00:05
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DUI, I assume?
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Jan 1, 2021 00:44
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Probably the same factory where they would put different trim levels on each side of the truck.
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Jan 1, 2021 01:09
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C-Bangin' it 
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not a fail, but not sure where else to put it, saw this today:
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Jan 2, 2021 02:40
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I remember when those things were snapped up by redbull as the original redbull girl cars, and they'd always come by our skate spots or at the local snowboard park and hand cans out like candy. I always thought they would be perfect for a hayabusa swap.
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Jan 2, 2021 14:45
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wilfredmerriweathr posted:I remember when those things were snapped up by redbull as the original redbull girl cars, and they'd always come by our skate spots or at the local snowboard park and hand cans out like candy. I miss the Red Bull promo cars we had here when I was a student, they used classic Minis
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Jan 2, 2021 15:10
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I love those dorky little things.
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Jan 3, 2021 14:05
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Krakkles posted:DUI, I assume? Alcohol would explain a lot of Chrysler's automotive decisions
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Jan 5, 2021 20:29
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Wait for it https://i.imgur.com/hY08ty4.mp4
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Jan 6, 2021 15:13
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LifeSunDeath posted:Wait for it Don't want to stand out, eh?
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Jan 7, 2021 20:34
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Help, my window can't close all the way. https://twitter.com/crk5/status/1347367527752499203?s=21
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Jan 9, 2021 00:15
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LifeSunDeath posted:Wait for it Wrong thread. This is amazing
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Jan 9, 2021 00:25
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Was changing out some o-rings on my ARB air locker in my CJ7 and just was wrapping up the job, slid the jack under the axle and noticed that the axle wasn't moving much on the driver's side: this is/was a heavy duty M.O.R.E. brand shackle hanger.... less than 2 years old with about 5000mi on it
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Jan 25, 2021 15:51
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https://www.youtube.com/watch?v=cw1YjIWRxUk
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Jan 31, 2021 18:34
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Reminds me of "noooooo no no no no no no nooooo" I wish one of the lights came loose and fell on the roof of the car. Would have made it so much better...
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Jan 31, 2021 19:46
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 I thinks she's good and truly hosed boys.  I loving hate dayco. 
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Feb 3, 2021 02:04
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Elmnt80 posted:
Our F-650 trucks with Cummins engines had the Dayco belt tensioners take a dump way too quick. And the Dayco replacements didn't let the belt fit because the locating peg was clocked differently. Same part number. gently caress you Dayco.
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Feb 3, 2021 03:36
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I discovered some time back that the bearing on the Ford tensioners, at least on my Crown Vic, is a common one and pretty easy to replace. Of course, that wasn’t the problem on mine. For some reason the tensioner was just a hair too close to the block and under certain conditions the pulley would *juuuuuuust* contact the timing cover, causing a chiropractor by noise. Solved by thin washers. Edit: this was the tensioner with the smooth pulley on the US passenger side. I also had some issue with the replacement, but I forget exactly what it was. It’s been years. Darchangel fucked around with this message at 03:49 on Feb 3, 2021 |
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Feb 3, 2021 03:47
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Yeah, its just a 6303 bearing, but that poo poo is loving trashed now so no reusing it. I also don't want dayco garbage in my car if I can avoid it.
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Feb 3, 2021 03:52
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More like Clown Victoria amirite?
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Feb 3, 2021 04:32
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Elmnt80 posted:Yeah, its just a 6303 bearing, but that poo poo is loving trashed now so no reusing it. I also don't want dayco garbage in my car if I can avoid it. Ah yes, judging by the seal the ever popular "HCH" brand of bearing Never heard of them. Guaranteed winner of cheapest possible price bid Background image right from the manufacturers website screams quality with their top notch packaging and state of the art warehouse. 
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Feb 3, 2021 05:57
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Joe Mama posted:Our F-650 trucks with Cummins engines had the Dayco belt tensioners take a dump way too quick. And the Dayco replacements didn't let the belt fit because the locating peg was clocked differently. Same part number. gently caress you Dayco. I learned the (not hard?) way to just buy an oem tensioner when I did the timing belt on my legacy. The Gates tensioner failed and the belt skipped 3 teeth on one of the cam shafts. It started to backfire through the intake. Somehow this didn't grenade the motor or the head even though it was an interference motor.  Drove it another 100000km before I sold it.
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Feb 3, 2021 06:26
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Elmnt80 posted:Yeah, its just a 6303 bearing, but that poo poo is loving trashed now so no reusing it. I also don't want dayco garbage in my car if I can avoid it. I had a dayco tensioner on one of my Mustangs, thought the alternator was going bad until I realized the tensioner spring had just shattered the aluminum casting and was holding almost no tension on the belt. I think I posted the picture in this thread. E: I did! Elviscat posted:"I'll just pry this serpentine belt off of my alternator real quick before I change it out... wait, why can I do that by hand without any real trouble?"
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Feb 3, 2021 06:33
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Another Dayco abortion are their viscous fan clutches.
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Feb 3, 2021 10:44
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Colostomy Bag posted:Another Dayco abortion are their viscous fan clutches. Almost every aftermarket fan clutch is a pile of poo poo, it's pretty much always better to try and rebuild your OEM part or just replace it with OEM. I have never, ever had good luck with any brand of aftermarket fan clutch.
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Feb 3, 2021 12:02
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Dayco more like Nowayco
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Feb 3, 2021 21:41
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chrisgt posted:Almost every aftermarket fan clutch is a pile of poo poo, it's pretty much always better to try and rebuild your OEM part or just replace it with OEM. I have never, ever had good luck with any brand of aftermarket fan clutch. Interesting, never occured to me they could be rebuilt.
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Feb 3, 2021 22:18
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