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Thread: mechanical accuracy

  1. #41
    Administrator Kelly Bramble's Avatar
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    Quote Originally Posted by roboticmehdi View Post
    why I ask you, xxxxx in first place, my bad.

    We don't allow personal insults here... Re-read the rules.

  2. #42
    Lead Engineer Cake of Doom's Avatar
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    If the OP can find anywhere in this video where the napper is concerned with accurate dimensions; I'll buy them a fizzy drink and a chocolate bar.

  3. #43
    Administrator Kelly Bramble's Avatar
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    Clay Pipe in the woods!


  4. #44
    Technical Fellow jboggs's Avatar
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    Well - THAT was fun.

    (Mr. Pinkerton would have absolutely blown his stack with this one, wouldn't he!)

  5. #45
    Administrator Kelly Bramble's Avatar
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    Quote Originally Posted by jboggs View Post
    Well - THAT was fun.

    (Mr. Pinkerton would have absolutely blown his stack with this one, wouldn't he!)
    It would have been interesting...

  6. #46
    Lead Engineer Cake of Doom's Avatar
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    It gave good thread traffic, if nothing else.

  7. #47
    Administrator Kelly Bramble's Avatar
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    Quote Originally Posted by Cake of Doom View Post
    It gave good thread traffic, if nothing else.
    Actually, I thought it was a practical thread.. A common challenge we have in engineering is specifying mechanical tolerances that are unachievable by the target manufacturing processes.

    Clearly the op was expecting more accuracy than what could be achieved using caveman tools. The points made about verifying the accuracy were spot on..

  8. #48
    (I'm not going to bother doing the math on this one since it is not important.)

    Assuming you have unlimited raw material and time, you can make a whole bunch (say, 1,000) of your cuboid or whatever geometric shape.

    Then, assuming statistics is not forbidden in your scenario, at least one of the parts should be within your specified tolerance.

    This is also assuming you are allowed to use a measuring tool accurate to within .01mm.

    BUT, if you are not allowed to use a modern measuring device, it is even easier. Might as well just redefine the millimeter and call it a day.

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