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  1. Wasdifferent

    Traverse Loop for closure errors

    LAguy, Check out underhill's copan software, or his online area calculator. It looks like either one should work for you. Both are available on this link: http://www.underhill.ca/Software/ugl_software.php Best Regards, Michael www.sewellconstruction.com
  2. Wasdifferent

    Traverse Loop for closure errors

    LAguy, I'm not exactly sure what your question is. Are you trying to determine your closure, or are you trying to balance your traverse? One CANNOT "reduce one's closure error to zero." What one CAN do, is balance the traverse by DISTRIBUTING the closure. There are some fairly easy...
  3. Wasdifferent

    survey calculations

    rodbroad, Take a course at your local community college, search amazon.com, try a good used book store, try e-bay, try google, subscribe to magazines such as Point of Beginning, or Professional Surveyor. It sounds like you should think about working for a different firm. Here's a link for...
  4. Wasdifferent

    Offset of CST/berger universal prisms

    geophyz, I don't have the model of prism that you mentioned, but I have a couple of dozen different prisms of different types made by different manufacturers. I've tested all of them by forced centering, and I found that they all agreed to within a hundredth of a foot. Sounds odd too me. Best...
  5. Wasdifferent

    Reestablish grade stakes for GC work..

    pwal2, A Topcon 303 should work fine for what you're doing. Best regards, Michael -Michael www.sewellconstruction.com
  6. Wasdifferent

    COORINATE SURVEYING

    mikewi, Use the Topcon. You can shoot angles with it just the same as you always have. You can transition to coordinates when you're ready. It probably won't take you long to learn on your own just by using the owner's manual. Find someone in your area to help you out if you need to. Best...
  7. Wasdifferent

    Earthworks volumes

    Paul121, www.softwarebydzign.com has some software for the hp 50g calculator, www.hpcalc.org has a lot of freeware and shareware for the hp 48 series calculators. Doing the calcs by hand or with a cumbersome program is very time consuming. Good software will pay for itself in a hurry. Best...
  8. Wasdifferent

    Prism and pole

    bashabo, First of all, you'd be surprised at how often you have to extend a prism pole to make a shot. Get a long one, you'll need it. It's also handy to have a 1 foot pole, a good auto level, a set of walkie-talkies, and an assortment of rods, prisms, poles, bipods, and tripods...
  9. Wasdifferent

    Theoretical burst speed of a disk

    Patricia, Thank you for the advice. "Looking for calculations/spreadsheet to determine the stresses in a rotating disc caused by RPM. The application is pump impellers." From: http://www.eng-tips.com/viewthread.cfm?qid=50738 -Michael www.sewellgeneralcontracting.com ALBANY SCHENECTADY TROY NY
  10. Wasdifferent

    Burst speed of rotating disk

    iainuts, Exactly what I needed. Thank you soooo much! eromlignod, Not what I was looking for, but maybe even better. It sounds like a "rule of thumb" formula with a built in safety factor. I'm interested in knowing where it comes from. Thank YOU very much, -Michael...
  11. Wasdifferent

    Burst speed of rotating disk

    unclesyd, Thank you for the link, but it is one of the 100 bzillion pages that I visited on google during the past 3 days with no equation... -Michael www.sewellgeneralcontracting.com ALBANY SCHENECTADY TROY NY
  12. Wasdifferent

    Burst speed of rotating disk

    I am looking for the equations for hoop stress and radial stress in a rotating disk, to calculate the theoretical burst speed. I am not looking for the more complex empirical solutions having to do with fatigue, balance, vibration, temperature, etc... A link would be great. I googled, but...
  13. Wasdifferent

    Theoretical burst speed of a disk

    Please see my posting in Mechanical Engineering - Other Topics. Thank you very much, Michael -Michael www.sewellgeneralcontracting.com ALBANY SCHENECTADY TROY NY
  14. Wasdifferent

    Theoretical burst speed of a disk

    Ah... the formula must be similar to the one used for circumferential stress (hoop stress) in pressure vessels, but with an equation for centripetal acceleration... Would I figure that the entire mass was at the radius of gyration? Am I getting close?... Thank you, -Michael...
  15. Wasdifferent

    Theoretical burst speed of a disk

    This must be a fairly simple equation. I looked through my old physics textbooks from 30 years ago and couldn't find it. I tried to google it, but there is WAY too much information, and NO equations. -Michael www.sewellgeneralcontracting.com ALBANY TROY SCHENECTADY NY
  16. Wasdifferent

    Frost Wall Cracks

    gbpackerman, I don't know if this is the cause of your problem, but IMHO, on any addition to a residence, the bottom of the frost wall footings should be at the same elevation as the bottom of the footings on the existing foundation. I have seen roofing material, lumber scraps, and even tree...
  17. Wasdifferent

    Support for house addition

    kruzie, Over the long haul, building without an Architect or an Engineer will cost you a lot of extra time and money. I hope that you don't learn this the hard way. Best regards, -Mike www.sewellconstruction.org
  18. Wasdifferent

    Concrete slab craking

    basford, fndn is right. Further, ACI membership is inexpensive, and gets you a good discount on ACI publications. It's well worth it IMHO. Best Regards, -Mike www.sewellconstruction.org
  19. Wasdifferent

    "Engineer" in New York State?

    The Owner has decided to report the "Engineer". Thank you all very much for taking the time and trouble to provide me with all of the good information and advice. -Mike www.sewellconstruction.org
  20. Wasdifferent

    Trucking Ramp

    chicopee, Good guess, but don't forget about rain, the insitu soil that will be deposited on the surface, some oil seepage from the vehicles, and a comfortable factor of safety. Or...ask an articulate truck driver with gray hair (LOL). -Mike www.sewellconstruction.org

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