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The 2 main things you need to fix anything in your house(dorm or apartment)
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What's that old saying... "If it moves and it shouldn't use duct tape, if it doesn't move and it should use WD-40"
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I think they forgot the zip ties...
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Jason |
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Jason |
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It's funny to joke, but I think it's also worth remembering that engineering IS serious business, and people's lives will probably at some point depend upon your work. My lead likes to say, "We use a lot of engineering judgement. And in a lot of cases, we'll never know we made the right call. But if we make the wrong one..."
(I'm doing commercial jet stability & control) |
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Not to be a kill joy, but engineering is serious business.
There is a reason we have professional associations. If you screw up, you can, and will get people killed. Many jobs in this profession cause sleepless nights. This is meant as a reminder for all graduating FIRSTers who intend on jumping into engineering. You will be doing some of the most important work in the world, and it is highly rewarding, but don't forget your duty to protect society from the risks of invention. |
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If all you have is a hammer, everything looks like a nail.
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Lets try not to scare the kids away before they even know what market segment they want to work in. |
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Yes, engineering is serious business. There is potential danger involved with building a machine. That said, sometimes it is appropriate to joke about something that is serious as long as everyone knows it is a joke. Anybody that frequents this forum should know that an engineer needs more then a hammer so I suppose I'm making the assumption that anyone reading this should know I was joking. I've heard many professional engineers say something along the lines of "You only need two things. (blank) if it isn't moving and should be. And (blank) if it is moving and shouldn't". In general, I've found engineers to have a good sense of humor that helps them deal with the stress that they go through every day. That said, this thread reminded me of a video I re-discovered recently when searching youtube for "chiefdelphi" by mistake. Some of you might remember it. I think its pretty clear what part of the video I was reminded of.
Jason |
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Rather, the results of dropping your appliance in a body of water is usually something that a company's marketing, legal, or compliance department worries about, and simply applies to the labeling materials that accompany the product - something the Engineer might never even see. |
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I guess more of an engineering concern would be when you turn the machine on, the blade will stay safely where it is supposed to be and not hurt the customer.
However, you can try to make something as safe as you possibly can, unfortunately no matter what someone will find someway to hurt themselves. For example, you can make a car as safe as possible. It may get the highest safety ratings in it's class, but if you drive it off of a cliff there really isn't much you can do about that. |
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The engineer designing the appliance ought to know all of this, and take it into consideration. The blender's designers probably decided against a bare metal case, for example—because an internal fault could enliven the housing. (Or if it is bare metal, I bet they thought about the degradation of insulation inside of the unit, and chose something that would be durable.) That's not to say every device is designed with the same care: an immersion blender has different insulation and sealing requirements than a tabletop blender. Although nobody needed to lose sleep over a blender, there was likely at least some consideration of the life-threatening failure modes, simply as part of the due diligence necessary to avoid a finding of negligence. You definitely wouldn't want to have to testify that you were relying on the NEC to protect users of your blender. |
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Not to kill this otherwise illuminating argument, but most appliances use UL (Underwriter's Lab) certified components and there are standards and test for such components. (Often the Green Shirt Folks at competition have something to do with UL).
This is true of most consumer products in that there are safety standards to be followed in order to be in compliance or to rate your product relative to safety (like crash test ratings for cars). Many large companies are able to self certify and have internal labs that can perform such a test. Often not for profit organizations get together and make the standards in order to not count on the wreckless calculations of an ill-prepped engineer. For instance, most lifting apparatus have some pretty major factors of safety associated with them. A lifting harness may require a 2.3 to 4x factor of safety (depending on standard) for each atttachment point relative to the entire load. These sort of safety factors are often necessary and built from previous bad experiences. for instance, a 4 chain harness without good load distribution could actually lift most (or all) the load with 2 chains. If you used a 1.5x factor of safety relative to all 4 chains for the entire load, It might work, or it might drop a really heavy object. For further reading on chains: http://www.liftingrigging.com/Inform...ain-safety.htm That being said, you can do your best to build a better product and idiot proof it, but society has a way of building a better idiot. Very cool graduation present. |
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That's a pretty sweet Graduation Gift package. It's amazing, one seems to pull in a decent amount of cash and some useful knick-knacks, but these type of gifts seem to be the most memorable and the most useful. I.E. props to my coach, who gave me a Leatherman Squirt PS4 for graduation:
![]() I've already been using it a bunch at my current engineering internship and it was a very thoughtful and useful tool. Hope you enjoy and use yours in just as many creative and practical ways :D |
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1. Fixing a ripped boat cover 2. Fixing a tube on a pool cleaner 3. LARP foam weapon - i'm such a nerd :D - lots of duct tape |
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We have a larp-sword which belongs to our CAD sub-team and has been passed down through student generations. It has been restored through the years and we even added a sheath for a nice duct tape transport to be flung over the back: http://www.chiefdelphi.com/forums/sh...ad.php?t=77626 What did you make, pics? ... |
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