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iForge posted:Numbnuts I'm working with broke a #6-32 HSS tap off in the flange of a 540 horsepower motor. I had to spend 30 mins getting it out. Believe it or not, 6-32 is actually easier to break than a 5-40 tap. The thread/pitch ratio leads to greater stress risers. Whenever possible use a size up or size down. um excuse me fucked around with this message at 21:06 on Jan 12, 2016 |
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Jan 12, 2016 21:01
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I HEARD THIS THREAD LIKES BICYCLES. I also heard this thread enjoys screw extractors. Bleed screw out of my brakes. Stupid thing used some torx pattern and I made the mistake of using a HF $3 sale driver for it. Stripped the screw and the torx driver!
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Apr 1, 2016 20:43
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If anything deserves it, it's the lovely torx I used. 
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Apr 1, 2016 21:37
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Holy scrub radius, Batman! bad ball joint rod end
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Apr 3, 2016 01:08
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Most cars don't need hubcentric rings because of the conical lugs most cars have nowadays. Are there any production cars that still have flat seat lugs?
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Apr 14, 2016 16:10
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Space Gopher posted:Uh, no. This is wrong.
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Apr 14, 2016 20:23
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It had to be the easiest thing in the world to bump start. Needs a set of pedals for that.
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Apr 24, 2016 05:38
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Memento posted:It's just a huntsman. Yea why would anyone be afraid of those? All fears are based on rational reasoning and understanding. Not sure how the car isn't in fire yet.
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May 22, 2016 16:40
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Now I want someone to wire lock wheel lugs because of how rediculously  it would look.
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Jun 24, 2016 21:59
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Geoj posted:Here's a good demonstration of the effects of a pure oxygen environment on metal - steel wool is heated until glowing, then violently bursts into flame when exposed to 100% oxygen. What weird world do you live in where you don't immediately just check youtube? https://www.youtube.com/watch?v=KXc-WXdg03Y&t=11s
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Jun 27, 2016 00:27
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I've worked with Arsine, phosphine, boron trifluoride, germanium tetrafluoride, silicon tetrafluoride, diboron tetrafluoride, diborane, and hydrofluoric acid in live gas environments. Diboron tetrafluoride is by far the worst. It is extremely expensive to make at around $300 a gram. It is used for ion implant in the semiconductor industry. Even making it is  . You start with enriched B11 boron. Heat that fucker up until it glows white hot, the run boron trifluoride over it which will strip boron off of the metal into boron monofluoride, diborane and unreacted BF3. Then in the same reactor a thermal gradient of over 2200C has to supercool it into a stable state until the synthesis is complete. After which you need to warm up the reactor to -20C to begin to form B2F4 to about 30% by mass. You capture it and distill it using a cryogenic distillation technique using hundreds of gallons of liquid nitrogen.The hazards with diboron tetrafluoride include being extremely toxic past 1ppm. It also form a cloud of hydrofluoric acid in contact with air. For those who don't know, not only does the acid burn skin, but it also absorbed through it and will decalcify your bones. The only way to stop it is by introducing a larger supply of suspended calcium to the surface of your skin as a sacrificial media and hope it all reacts. Diboron tetrafluoride is also pyrophoric past 15% which means it spontaneously burns in contact with air. So overall B2F4 is toxic, corrosive and flammable to the very extremes of the definitions. Fun stuff. um excuse me fucked around with this message at 21:38 on Jun 27, 2016 |
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Jun 27, 2016 21:34
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So do they not get a trunk anymore?
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Jul 19, 2016 14:11
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No GM has always had a reputation to build economy cars that won't die but be the absolute worst shitboxes ever in the process. Truly a brand for the most masochistic of us. My Saturn L200 had the exact identical sun roof failure.
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Aug 10, 2016 23:13
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H110Hawk posted:Good news, China is going to start making plane engines! http://www.bbc.com/news/business-37212009 Oh god. As someone that works with engineering on jet engine design and testing I can tell you that even the big players in the business are only starting to understand some of the ways metallurgy performs under the conditions you find in jet engines. Like, we figured out something new the other week that effects nearly every jet engine made since the 80s. The Chinese don't know any of this yet. That's scary. um excuse me fucked around with this message at 17:54 on Aug 29, 2016 |
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Aug 29, 2016 17:43
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I'm gonna start plugging bad data for the F35 in compromising locations to gently caress with the Chinese.
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Aug 29, 2016 18:26
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Ok so I have about an inch and a half of clearance between my fender and tires. My springs are 500lbs/in (about 9k) and I can hit potholes and stuff okay. Motion ratio is something like 78% in the rear. So I can max out at 900lbs of compression in the rear. So while that dude would need stupid stiff springs to maintain that ride height, it doesn't need to be off the charts. This is making some pretty wild saftey exceptions.
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Aug 29, 2016 19:58
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There's nothing wrong with using the rattle gun to get the lugs seated, then torque with an actual torque wrench, right? The problem lies in under/over torquing the lugs by just using an impact?
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Sep 22, 2016 22:17
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Beach Bum posted:There was both a mechanical failure and mechanical success here This was posted before and the perfect response was already supplied. quote:I think he sees the point. Don't remember who it was but take a bow if you're here.
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Jan 6, 2017 14:45
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Ugh
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Jan 24, 2017 17:10
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I work with someone know who did aircraft maintenance in Miami in 95. He told me a story of one of his colleagues getting busted for trying to buy one of those AA parts. The story was so crazy I chalked it up to be fake and tuned out.
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Mar 18, 2017 16:22
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GnarlyCharlie4u posted:That's not exactly what I meant by 'drag race'. Probably not engine related or I probably would have heard something at work about it by now.
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Apr 27, 2017 20:19
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Pretty sure I saw wheels spacers, which answers why that happened
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Jul 19, 2017 20:50
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The Door Frame posted:Spacers put that much stress on the lugs? My guess is the lugs ripped the thread out of the spacer since they arent meant for racing.
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Jul 19, 2017 23:45
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gently caress I can't tell you how many times I've looked for that photo
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Jul 20, 2017 22:31
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I had to threaten my cheapo insurance company with legal action before they started paying out. It took about 6 months of pulling teeth before it was resolved in a manner I thought was fair.
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Aug 21, 2017 13:59
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That overlooked a ton of poo poo. Like you're going to have to do more than reinforce the surface. What do you suppose that'd weigh? 40 tons? Especially in cities with subway systems
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Aug 30, 2017 20:25
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Not to downplay the seriousness off throwing a tire off a vehicle, but lug centric wheels make huge loving racket when the lugs loosen up. Bearings make noticeable amounts of noise when they start to go, not as much as lugs, but noticeable. But these are the ones on the vehicle you drive. I imagine you could miss quite a bit on a trailer before being loud enough to hear.
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Oct 6, 2017 03:52
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I tried curling my fingers once and instead of cutting my finger tips, I cut my knuckles 
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Dec 7, 2017 16:41
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Sagebrush posted:before anyone else posts it Note the H4 used 8 of these. 224 pistons with a displacement of 572 liters.
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Jan 22, 2018 04:35
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Feb 15, 2018 05:02
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I imagine if you lift yourself out of your seat you could apply hundreds of pounds of pressure. 80 is firm but not absurd.
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Feb 19, 2018 20:19
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I once brought a car into a shop for loose lug nuts that I unknowingly forgot to torque a day earlier. Probably one of the dumbest things I've done.
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Mar 13, 2018 19:45
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I've seen people on Jalopnik post about how they literally didn't know how a turbocharger worked.
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Mar 15, 2018 12:29
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And only a few percent actually go into moving you in said vehicle!
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Mar 15, 2018 14:45
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No I mean the remaining power to said wheels gets evenly distributed into total mass. Meaning if you weigh 180 lbs and your car is 2900 lbs, on 6% of the remaining power to the wheels actually drives you forward.
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Mar 15, 2018 15:02
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Are you assuming 100% of that heat is going into just grease and that it's a closed system or something?
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Mar 15, 2018 20:07
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You could just put a loop guard on one like a sword.
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Mar 26, 2018 19:53
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Or naturally, an old AAA battery.
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Mar 26, 2018 20:48
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I've taken both 2100V and 250,000V at 1000W delivered. I know because I was measuring it  .Surprisingly 2100V hurt more.
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Mar 29, 2018 23:55
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| # ¿ Apr 25, 2024 06:34 |
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Phanatic posted:Yoinked from the OSHA thread. Someone watched world's fastest Indian.
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Apr 20, 2018 18:21
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