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  1. TheTick

    Max drill depth for dowel pins

    You only need 1.5D to 2D depth for a viable positioning dowel joint.
  2. TheTick

    Miniumum wall thickness

    Put a smaller diameter gage pin in the groove and measure across with caliper.
  3. TheTick

    General tolerances on a drawing

    Seems like fabricating is just about anything but casting and machining.
  4. TheTick

    Fatigue with signed von Mises stress

    I'm glad someone smarter than me said what I was thinking.
  5. TheTick

    Dimensioning - Extension line weight when printing

    This may be a mapping issue in your print/plot settings.
  6. TheTick

    Tolerancing Slots From an Angled Datum

    Also looks like a good application for dual tolerance, one to control shape at a tight tolerance relative to A or A|B, and a looser tolerance for location A|B|C.
  7. TheTick

    Windpower Generators

    It's not drag so much as each blade's wake causing interference with the next. There's are tradeoffs between speed, number of blades, and weight. The ultimate boogeyman is the Betz limit. There is a theoretical maximum amount of energy that can be extracted from a given cross-section of wind...
  8. TheTick

    digits on basic dim and the tolerance

    If you're making this determination based on the requirements of the design fit and function requirements, fine. If you're making this determination because that 0.05mm "doesn't seem like a lot", you need to step away. [bat]Honesty may be the best policy, but insanity is a better defense.[bat]...
  9. TheTick

    digits on basic dim and the tolerance

    Basic dimensions are exact, ideal dimensions. They have no tolerance, therefore no tolerance or precision is implied by decimal places. Trailing zeroes are implied and infinite.
  10. TheTick

    NX modeling principal plane of an assembly too stretched

    The problem is that someone somewhere decided your default should use three default planes instead of a single absolute CSYS. Incompetent people are everywhere. Some make CAD templates.
  11. TheTick

    Tangent Line as datum

    Consider going the opposite direction: Use holes as datum and control slot and profile. Final GD&T does not necessarily need to follow order of operations for manufacturing (which may or may not correspond with actual part function).
  12. TheTick

    German Prints - No GD&T ?

    EVERY German drawing? I've been to Germany. It is a big place. Many people. Many companies, some of which are undoubtedly creating engineering drawings.
  13. TheTick

    Job Interviews, a decision moment

    Keeping your $#!+ together when it is not together is a powerfully daunting task. Like most things in life, it happens one little thing at a time. How does a piranha eat a pig? One bite at a time. Be a piranha, not a shark. Bonus if you can find some piranha buddies to help you.
  14. TheTick

    Job Interviews, a decision moment

    As CWB1 said, be direct. Be clear. Most of all, ANSWER THE QUESTION. As an interviewer, one of the biggest red flags is if the candidate does not understand the question or (worse) understands but gives a deflecting answer. Anyone might ramble when they are nervous. I try to give some leeway...
  15. TheTick

    Change combustion engine by electric motor

    I worked on electrifying Jacobsen turf mowers in the 1990s. Some of the electric tractor patents in our knowledge portfolio dated to the 1930s.
  16. TheTick

    Change combustion engine by electric motor

    Good point. Add variable frequency to the list of control options.
  17. TheTick

    Change combustion engine by electric motor

    Respectfully, that seems a very narrow view of how electric motors operate and are controlled. There are other ways to control motors, and there are certainly many other types of motors. AC motors have a peak speed tied to their frequency and poles. But they can and do go slower, and find a...
  18. TheTick

    Change combustion engine by electric motor

    Really? I understand the opposite to be true. Especially for diesel.
  19. TheTick

    Combine or Merge Faces for analysis

    Are they different surfaces? Or is it a single surface that is cut up and fragmented? If it is just a fragmented surface, you can use delete face or replace face to combine fragments.
  20. TheTick

    Combine or Merge Faces for analysis

    You can turn the faces into facet bodies, then make a best-fit B-surface out of them.

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