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  1. MechanicalChef

    Estimating the amount of time it'll take a tool to decelerate

    Ah, thanks. Pound mass versus pound force. 'Preciate it.
  2. MechanicalChef

    Estimating the amount of time it'll take a tool to decelerate

    The machine is a filament winder, with the tool installed horizontally, like a rotisserie. What I'm trying to estimate is how long the mandrel spin before the E-brake stops it. My issue is units, as they're just not falling out properly. Based on initial estimates, the tool's centroid will be...
  3. MechanicalChef

    WRX knock problem

    Interesting approach. Back in school, my NVH professor's method for diagnosing a noisy component was to go around and hit parts with a ball-peen hammer. Worked well on tractors. Probably not so much on body panels.
  4. MechanicalChef

    vvt, cylinder deactivation etc.

    http://auto.howstuffworks.com/camshaft2.htm DOD isn't quite as simple as just cutting fuel to the cylinder. Of course, that must be done, but there is also a valve control component as well. There are greater losses to be minimized by stopping the pumping action. So, the intake valve ceases to...
  5. MechanicalChef

    GPA Vs. Experiance

    Back to the original post, tough out the job for a bit longer if you can. I'd say that anywhere beyond the 2.5-3 year mark of working, GPS is irrelevant. You've gotten a BSME at an accreditied university, and you've made it long enough to not be fired for gross incompetence.
  6. MechanicalChef

    Anyone seen this type of turbo system?

    I'm not aware of any system quite like that. I suppose you can do anything. What benefits do you think could be realized that would make this system superior to typical parallel/sequential systems. I'm not familiar with these elctronic proportioning valves, but it seems like feeding a large...
  7. MechanicalChef

    Headlights affecting mpg- how does it work?

    "Valeo estimates" That's where I stopped taking the excerpt seriously.
  8. MechanicalChef

    electronic rust protection

    They'll probably start selling them with those "Tornado Fuel Savers.
  9. MechanicalChef

    fastest / automated manufacturing methods?

    It all depends on what you're trying to build. Filament winding can be an extremely fast method of building composite parts. Up to several hundred pounds per hour. Tailorability issues keep it from mainstream composite-aircraft applications, however.
  10. MechanicalChef

    Engineering job titles

    When I hired on, I was Engineer/Scientist - Polymers/Composites Technology. I'm mechanical by schooling, aero by career field, and composites by specialty. So I pretty much choose my own title, depending on the day.
  11. MechanicalChef

    Autoclave safety features for vacuum

    A resin-trap, internally or externally would probably suffice. Our claves down here may have one, but the few times we've bled resin out of the part, the resin only progressed a few inches up the vacuum line. The through-bag valve on the fitting was trashed, but we were able to disassemble...
  12. MechanicalChef

    Stamped vs. Machined water pump impellers

    The easiest solution would be simply remove the entire engine and swap in an American V8. :evil laugh: ------------ The inside joke here is the the die-hard rotary guys HATE thought of losing the Wankel. Merely bring up the characters "V" and "8" are enough to give some of them seizures. I...
  13. MechanicalChef

    Limited Slip Differential

    Modern countries typically have their own patent processes. So if you want one for the USA, you have to file it to the USA.
  14. MechanicalChef

    Working 40 hrs/week....somewhat....

    Another tip: For non critical emails, use the feature in outlook which delays the sending of a message. New email -> options -> "Do not send before: ______" Send him a few on saturday's and sundays at close to midnight.
  15. MechanicalChef

    Engine oil surge

    Formula SAE also uses 600cc engines.
  16. MechanicalChef

    Cut composites

    What type of saw are you using? A wood blade will cause splitering. You'll want to use a diamond blade, or a blade with cemented-carbides. The type of blade used to cut ceramics. like this: http://www.made-in-china.com/image/4f0j00FcaQLfEtFTjVM/Diamond-Jigsaw-Blade.jpg or...
  17. MechanicalChef

    Vacuum Bag Moulding

    If you know ths basics, and have the basic materials coming, great. Based on your descriptions, I'll assume you're working with fiber-glass. Proper wet-out prior to bagging will be the most crucial step. Make sure you have ordered a slotted/paddle roller or two. (fiberglast sells these items)
  18. MechanicalChef

    Aerospace Engineer

    In this day and age, if you're interested in true engineering, start working on BS as soon as you can. Concurrent to your military career if possible. If you're interested in engineering propulsion, your work will no doubt help you find a job, but to be a true engineer, you'll need a bachelors...
  19. MechanicalChef

    Using HFC-134A to directly cool intercooler core. Dangers?

    I can't offer much help to the problem, but I have been near a vehicle that burst an AC line while the system was being charged w/ R134. The gas was subsequently sucked through the engine and combusted. The resultant fumes kicked out of the exhaust were nasty nasty stuff.
  20. MechanicalChef

    A poor man's right angle drive?

    "Commonly known as a CIG locker!" I've also used the term Lincoln Locker (Lincoln Welders)

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