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Recent content by EngineerErrant

  1. EngineerErrant

    Meaning of the expression "positively attached"

    Googling "positive attachment" net me this: http://www.agi-seismic.com/code/ac184.html In this sense, it basically means "resists a reasonable amount of force in any direction," which makes sense insofar as terminology is concerned. I'd imagine that, for your application, it just means that the...
  2. EngineerErrant

    Parametric Sweep - Component Array

    Just to clarify, the parts themselves are gentle arcs (swept boss). If they were straight spars, I'd do an extrude-up-to-face and use the outer rectangle to terminate, but I can't really think of a way to extrude a swept profile up to a face besides what I'm doing right now. "Engineers like to...
  3. EngineerErrant

    Parametric Sweep - Component Array

    Apologies in advance, I'm sure this has been asked before, I just can't find the right combination of keywords to find a post about it. I have a small rectangular shape inside a larger one, and I have rib-like components in a linear pattern on each edge spanning the distance between them. For...
  4. EngineerErrant

    Brain Teasers

    Check the wattage label on the refrigerator, measure the volume of the room, figure how many calories you eat in a normal day & convert to watts, add together for total heat released to room in joules, use the specific heat of air (just for simplicity's sake) and the volume of air for...
  5. EngineerErrant

    Brain Teasers

    fegenbush: Clearly you have never experienced the sort of coffee they make in my office. "Engineers like to solve problems. If there are no problems handily available, they will create their own problems." -Scott Adams
  6. EngineerErrant

    Electrically Grounding Powder-Coated Parts

    It's a light fixture; UL 1598. "Engineers like to solve problems. If there are no problems handily available, they will create their own problems." -Scott Adams
  7. EngineerErrant

    Mechanism to allow change of inclination angle.

    What sort of moment load are you expecting at the hinge, and how fast does it need to move? "Engineers like to solve problems. If there are no problems handily available, they will create their own problems." -Scott Adams
  8. EngineerErrant

    Electrically Grounding Powder-Coated Parts

    As suggested, it's for UL compliance. (As such, I don't think that thread-cutting screws are allowed on an electrical housing.) Using a weld/PEM stud might work, although the cover is bent into a relatively small "C" shape, which might make actually attaching the thing difficult once bent. I'll...
  9. EngineerErrant

    Electrically Grounding Powder-Coated Parts

    I'm trying to find an elegant way of reliably grounding a sheet metal housing that's been powder-coated, without masking off the hole where the grounding lug attaches. If I do it that way, I'll have to make the part out of aluminum instead of steel to prevent corrosion. That's doable, but I feel...
  10. EngineerErrant

    Iran Bans Women from 77 University Programs, Largely Engineering & Physical Sciences

    Sort of. However, I'd much rather a culture that is aware of its gross inequities and provides some compensation for them (while working towards equality) than a culture that pretends to treat everyone the same superficially, despite clear discrimination. "Engineers like to solve problems. If...
  11. EngineerErrant

    Production Revision Lettering Method

    My company uses the mixed-rev scheme. It makes a lot of sense for us, as we do a lot of custom work for architectual design firms that love to redline things to high hell, without actually changing our design. ("Add a note about installation here. Add phantom lines for all surrounding structures...
  12. EngineerErrant

    Iran Bans Women from 77 University Programs, Largely Engineering & Physical Sciences

    I sure hope this is tongue-in-cheek. That's flamebait, there. "Engineers like to solve problems. If there are no problems handily available, they will create their own problems." -Scott Adams
  13. EngineerErrant

    Iran Bans Women from 77 University Programs, Largely Engineering & Physical Sciences

    This approach only works if both opinions are equally valid. If I assert something that is verifiably untrue, it doesn't matter how passionately I assert it, it doesn't make someone arrogant to tell me I'm wrong. Similarly, if I make an assertion based on invalid logic, although the assertion...
  14. EngineerErrant

    Iran Bans Women from 77 University Programs, Largely Engineering & Physical Sciences

    Either the one who lasts the longest, or the one with the most power. I hope that we get an influx of brilliant women from the Middle East who are as outraged by this nonsense as I am. "Engineers like to solve problems. If there are no problems handily available, they will create their own...
  15. EngineerErrant

    Let's burn more sunshine

    Regarding beets: http://cnas.tamu.edu/ConfPresentations/Papers/TheinMaungBiofuelFeasibilityPaper.pdf Looks like it's feasible, although I share most posters' distaste for burning food. "Engineers like to solve problems. If there are no problems handily available, they will create their own...
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