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Recent content by JsTyLz

  1. JsTyLz

    Spiral Fracture of Hex shaft

    For any cyclic torsional loading, durability/fatigue always drives the design size/shape and material selection.
  2. JsTyLz

    How many of you would consider yourself a SCIENTIST

    Agreed KENAT... Though it would seem so, there isn't a direct correlation between piece price and amount of material. Most of the time, the simpler design will be more economic than the complicated with less material. I think what what whyun was trying to suggest is the optimization generally...
  3. JsTyLz

    How many of you would consider yourself a SCIENTIST

    Scientist is just a old archaic way of saying engineer. All engineers are scientists, but not all scientists are engineers. Engineers have an end user, while scientists postulate and confirm, which engineers should do!
  4. JsTyLz

    Would You Encourage Your Kids to become Engineers?

    The individual determines how well they learn, not the university or the country for that matter. And yes I will try to get my kids in tech jobs, not necessarily engineering, but something in the science based industry. This is not only for them, but for the welfare of there kids. I am not sure...
  5. JsTyLz

    Salary Negotiation

    Who ever said that the prospective company deserves your salary is completely wrong. Never put your salary on the negotiations. Do they ever put down what they are willing to pay you before you even interview.... no. Do they tell you about the every day stuff that will drive you nuts... no. So...
  6. JsTyLz

    Statics question

    Use either moment equations and integrate, or use distributed load as the first scalar input. At the supports, the deflection is equal to zero. If the cross section is continuous between supports/loads, then it can be solved.
  7. JsTyLz

    How to call out staking on a print

    Yes a groove pin might work but this part is already in production. I am a product engineer, and do really miss the days of design engineer work (pre-production), when such changes could be made. I must make a callout on the print to satisfy the countermeasure WITHOUT adding cost. I think the...
  8. JsTyLz

    How to call out staking on a print

    All, Thanks for the comments and suggestions. I need to restate a portion of my original post. The Ground pin "IS" press fit into one housing, but the stake is a countermeasure because their is also a lateral load applied which theoretically, and once in a real world application worked its way...
  9. JsTyLz

    How to call out staking on a print

    A ground pin is slip fit through a housing into another housing. These housing are to rotate about each other, and neither is fixed (only when in a locked state are they fixed). The pin allows them to move when the mechanism in unlocked. Question is that on the print there is a callout for...
  10. JsTyLz

    Bridge Collapse in MN Part 2

    Everyone is blaming the politicians about not spending the money to fix the bridge but have any of you ever said yes to paying more taxes??? I'm sure there are a few but, truly if MN had posted a tax increase for the reason of updating bridges that were deemed structurally deficient, I bet the...
  11. JsTyLz

    Significant Figures applied to GD&T

    I think the poster is talkning about assembly tolerances. I would recommend statistical tolerances for the higher levvel assemblies iff (if and only if) your processes are verified to meet 1.67 Cpk. Otherwise just add up the tolerances and watch the final assembly tolerance blow up. Look up RMS...
  12. JsTyLz

    Arrogant Engineers

    Don't you think upper management is arrogant in some of their decisions. At the last company I worked for, Japanese Chairmen and publically traded, in Japan, had a lot of managers I would classify as arrogant. Though I think the act of classifying or calling someone arrogant almost makes you...
  13. JsTyLz

    US charge out rates survey

    UDP, Hooray for the bald gray hairs. Funny stuff
  14. JsTyLz

    Thread forming screws

    Machinery's Handbook is also a goo place. It give different values for different material types, sizes, etc. J
  15. JsTyLz

    career start advice

    Any experience is better than college (to people in hiring positions, not me necessarily). An employer is more comfortable hiring someone who has industry contacts and that another company was willing to put faith in.
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