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Hillridge posted:Horrible Tow Strap Use Failure? loving children.
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Jan 23, 2015 16:14
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CommieGIR posted:loving children. That's not a snatch strap... not a snatch strap
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Jan 23, 2015 16:56
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Hillridge posted:Horrible Tow Strap Use Failure? User error, but at least he hosed up his own truck. I hope that was HIS truck. 
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Jan 23, 2015 18:21
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That's why you should always get the vehicle's owner to attach the tow strap.
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Jan 23, 2015 18:22
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QuiteEasilyDone posted:That's not a snatch strap... not a snatch strap I was thinking he was going somewhat fast for a snatch strap, and the stuck truck likely didn't need anything more than some gentle tugging anyway. I was confused for a moment when the other guy disagreed with "that's how you use them". Then I realize it's not a snatch strap. What a dumb rear end. If he's done that before, I must say that his bumper performed admirably.
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Jan 23, 2015 20:14
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Hillridge posted:Horrible Tow Strap Use Failure? "That was one of the stupidest things I've ever seen." same
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Jan 23, 2015 21:58
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Slavvy posted:It's interesting that you guys condemn Mazdas as being rust buckets. I see imports of all flavours from japan where I assume they salt the roads, and the worst offenders are by far Nissan. Especially the various vans/people carriers which always rot at the junction of the floor pan and rear wheel arches because Nissan use a different construction method for these areas compared to most brands. Bonus points: rust is invisible from the outside until a subframe falls out because there's a double skin thing going on, and the only way to detect it is to take out the third row seats and remove the carpet. I've noticed that too. Maybe different markets get radically different levels of rustproofing - I know my 2002 V35 Skyline has absolutely no underseal and was suffering pretty badly by the time it was sold. That said my 2008 NZ new Mazda 3 has alarmingly little paint in the rain channels that run along each side of the roof - makes me wonder how that'll go long term.
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Jan 24, 2015 00:14
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Apparently not a real mechanical failure as the engine ran for 20 days before finally failing. Tek screw used to remove the piston.
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Jan 24, 2015 04:28
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Gotta love engines where things like a seized piston results in customer complaint of a rough idle.
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Jan 24, 2015 05:08
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I'm entering a crappy robot competition later this week. I'd say the potential for mechanical failure is quite high. https://www.youtube.com/watch?v=pzs9qcKOKjs That's a bike chain welded onto the shaft of a motor from an electric hand dryer that's been bolted into a crude steel frame. It's actually pretty tame running through a variac at 50% power
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Jan 25, 2015 20:28
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Safety Dance posted:I'm entering a crappy robot competition later this week. I'd say the potential for mechanical failure is quite high. It looks like a good name would be "The Un-Ankler".
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Jan 25, 2015 20:33
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just call it chihuahua.
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Jan 25, 2015 20:37
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Safety Dance posted:variac If you want more power at less RPM, you'll want to use a VFD.
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Jan 25, 2015 21:03
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Safety Dance posted:I'm entering a crappy robot competition later this week. I'd say the potential for mechanical failure is quite high. Hope you're running that from behind lexan, as when one of those bike chain links lets go at speed it's going to make an impressive amount of distance.
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Jan 25, 2015 21:16
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Safety Dance posted:I'm entering a crappy robot competition later this week. I'd say the potential for mechanical failure is quite high. That is awesome, although I cant help but think it would be better with a chainsaw chain.
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Jan 25, 2015 21:33
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Liquid Communism posted:Hope you're running that from behind lexan, as when one of those bike chain links lets go at speed it's going to make an impressive amount of distance. It's really good at launching pens directly into my junk when I toss them at the whirly area. Raluek posted:If you want more power at less RPM, you'll want to use a VFD. I wish we had a bunch of inexpensive VFDs floating around that I could borrow, but alas. The thing has cost me maybe $30 out of pocket if you include the $5 I dropped into the welding supplies donation bin.
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Jan 25, 2015 21:36
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Agreed. Also, electrify the chain. Put a high enough voltage on it and you will probably gently caress up your competitors control systems pretty badly if they take a good hit.
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Jan 25, 2015 21:37
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I feel like the chain links are 90 degress off axis of where they should be, because the first hit is going to snap the chain.
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Jan 25, 2015 21:41
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Wasabi the J posted:I feel like the chain links are 90 degress off axis of where they should be, because the first hit is going to snap the chain. Yep, the plates will pop off the rivets. You could probably even break a bicycle chain with your bare hands bending it in that direction.
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Jan 25, 2015 21:54
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Raluek posted:If you want more power at less RPM, you'll want to use a VFD. Screw that. And what's with this fancy variac nonsense, anyway? Those things cost money! A lamp dimmer is practically free at goodwill, and there's a pretty good chance it won't catch fire or rattle the chain into high-velocity pieces with crazy harmonics.
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Jan 25, 2015 22:05
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Space Gopher posted:Screw that. And what's with this fancy variac nonsense, anyway? Those things cost money! That was my first plan, but someone said "Hey, we have this variac you can use."
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Jan 25, 2015 22:34
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Safety Dance posted:That was my first plan, but someone said "Hey, we have this variac you can use." Yeah a triac (dimmer switch) is probably a better idea than a variac in actual non-testing use, but a VFD will still give you better performance. I guess they're non-trivial to DIY?
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Jan 25, 2015 22:41
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Crotch Fruit posted:That is awesome, although I cant help but think it would be better with a chainsaw chain. Safety Dance posted:It's really good at launching pens directly into my junk when I toss them at the whirly area.
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Jan 26, 2015 01:28
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stinch posted:Yep, the plates will pop off the rivets. You could probably even break a bicycle chain with your bare hands bending it in that direction. Yeah, you want it in the direction it can flop when it hits something it can't tear apart, centripetal force will still make it a very good weapon. As it is, it's just going to shatter on contact. Also, thirding chainsaw chain.
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Jan 26, 2015 05:36
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Bad Angus! Bad!
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nmfree posted:
Masterstroke
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Jan 26, 2015 08:36
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Chainsaw chain sounds amazingly redneck and the best idea.
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Jan 26, 2015 13:23
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Liquid Communism posted:Chainsaw chain sounds amazingly redneck and the best idea. But I doubt chainsaw chain would do any additional damage to other robots compared to a normal chain, it can bind more easily, and it makes it more dangerous (if that is still possible) for spectators.
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Jan 26, 2015 14:04
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Ika posted:But I doubt chainsaw chain would do any additional damage to other robots compared to a normal chain, it can bind more easily, and it makes it more dangerous (if that is still possible) for spectators. That's why it's the most redneck option
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Jan 26, 2015 14:05
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haha so true
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Jan 26, 2015 14:06
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veedubfreak posted:Thank god they don't use salt in Colorado Mag chloride is just as bad, duder 
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Jan 27, 2015 21:14
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Atmus posted:Mag chloride is just as bad, duder The correct answer is sand
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Jan 27, 2015 22:21
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Brigdh posted:The correct answer is sand Except when you are riding your bike in summer you then crash on a huge loving Saudi size sand dune. Source: commonwealth of MA
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Jan 28, 2015 00:40
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Saga posted:Except when you are riding your bike in summer you then crash on a huge loving Saudi size sand dune. Source: commonwealth of MA Every loving summer when I was living in Connecticut at the end of the street my grandma lived on this would happen at least once
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Jan 28, 2015 00:48
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Yeah, that's what i hate about Colorado's use of sand. They dump truckfuls of it everywhere, and then don't sweep it up so the dry roads are almost like ice for cars and bikes alike. The city website says they are suposed to take care of that poo poo within 4 days of a snowfall, but they leave it year round.
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Jan 28, 2015 01:01
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Brigdh posted:The correct answer is sand As a motorcycle rider, I say gently caress sand. Horrible operator failure:  GnarlyCharlie4u fucked around with this message at 03:20 on Jan 28, 2015 |
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Jan 28, 2015 03:17
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GnarlyCharlie4u posted:As a motorcycle rider, I say gently caress sand. Ugh. The correct answer to what Colorado uses is "sand". I loving hate it too, but it seems like there is an embargo on using salt/mag chloride outside of Denver.
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Jan 28, 2015 03:59
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Some people claim that a stock Subaru intake isn't enough of a restriction to worry about replacing. Well, it takes quite a pressure differential to do this: Got that from my friend Paul at yimisport.
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Jan 28, 2015 10:29
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jamal posted:Some people claim that a stock Subaru intake isn't enough of a restriction to worry about replacing. Well, it takes quite a pressure differential to do this: Manufacturing defect. You can't get a pressure differential greater than 14.7 psi on an intake, as that's the difference between sea level average pressure and absolute vacuum. Also the same reason you should disregard stories of runaway diesels pulling in phone books (unless the person was stupid enough to feed a corner into the compressor wheel of the turbo).
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Jan 28, 2015 19:49
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Phone books are pretty floppy, the usual way I've heard it is that it ate the thing one page at a time. I can believe that, especially if they were rather flustered and didn't get it perfectly across the opening.
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Jan 28, 2015 20:03
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Doesn't flywheel inertia have something to do with it?
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Jan 28, 2015 20:22
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