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Meaningness's profile
David Chapman
David Chapman
David Chapman
@Meaningness

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David Chapman

@Meaningness

Better ways of thinking, feeling, and acting—around problems of meaning and meaninglessness; self and society; ethics, purpose, and value.

meaningness.com/about-my-sites
Joined September 2010

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    1. Rob MacLachlan‏ @robamacl 30 Oct 2018
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      Replying to @robamacl @Meaningness

      Didn't fall off this time, and for a reasonable fit on impeller hub.pic.twitter.com/olRU9bynIc

      1 reply 0 retweets 1 like
    2. Rob MacLachlan‏ @robamacl 30 Oct 2018
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      Replying to @robamacl @Meaningness

      BTW, I almost drilled the wrong size hole, b/c I measured hub, then pulled out the right drill from the index and set it down on the bench.pic.twitter.com/8R3FyyeNCx

      1 reply 0 retweets 1 like
    3. Rob MacLachlan‏ @robamacl 30 Oct 2018
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      Replying to @robamacl @Meaningness

      Then I picked up the drill, and decided to compare to the hub. WTF?pic.twitter.com/YEmWkw4AAR

      2 replies 0 retweets 0 likes
    4. Rob MacLachlan‏ @robamacl 30 Oct 2018
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      Replying to @robamacl @Meaningness

      Turns out the .500 drill was already lying on the bench, and I had picked that up instead of .468

      2 replies 0 retweets 1 like
    5. Rob MacLachlan‏ @robamacl 30 Oct 2018
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      Replying to @robamacl @Meaningness

      It is surely a coincidence that the hub happened to be almost exactly 15/32 inch. The hole I ended up with is very slightly undersized, but I will deal with that fit later.

      1 reply 0 retweets 0 likes
    6. Rob MacLachlan‏ @robamacl 30 Oct 2018
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      Replying to @robamacl @Meaningness

      After hand deburring of the center hole it fits down on the hub fairly nicely.pic.twitter.com/zL0JVIRjWo

      1 reply 0 retweets 0 likes
    7. Rob MacLachlan‏ @robamacl 30 Oct 2018
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      Replying to @robamacl @Meaningness

      I have chucked the whole motor rotor assembly in the lathe for reducing the disk diameter and making sure it is nicely centered. This is a pretty floppy arrangement, but good enough I hope.pic.twitter.com/aXfB1j6Vlx

      1 reply 0 retweets 0 likes
    8. Rob MacLachlan‏ @robamacl 30 Oct 2018
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      Replying to @robamacl @Meaningness

      Hard to see from the calipers, but the fit in the housing is too tight because the molded housing tapers (as molded cavities usually do to allow it to come out of the mold). I think I want about 1.9 inches dia so crud doesn't get stuck between tip and housing.pic.twitter.com/ZPd2NzTMs5

      1 reply 0 retweets 0 likes
    9. Rob MacLachlan‏ @robamacl 30 Oct 2018
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      Replying to @robamacl @Meaningness

      I tried turning it down with just friction holding the disc in place. No, that didn't work at all, but seemed like worth a try. So temporarily attach with super glue.pic.twitter.com/ahRkH6l2JU

      1 reply 0 retweets 0 likes
    10. Rob MacLachlan‏ @robamacl 30 Oct 2018
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      Replying to @robamacl @Meaningness

      No, the glue idea was equally delusional. Not enough bond area, poor bond to plastic. But fits nicely on 1/2 inch threaded rod, even tho the hole is .030" smaller than the diameter of the rod. Because opposite to each thread peak is a trough.pic.twitter.com/wfPeyNRGf5

      1 reply 0 retweets 0 likes
      David Chapman‏ @Meaningness 30 Oct 2018
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      Replying to @robamacl

      I’m going to have to work hard to resist making a blog post of commentary on this! (Would get your permission and input if I did of course)

      12:49 PM - 30 Oct 2018
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      • Rob MacLachlan Charlie Awbery
      1 reply 0 retweets 2 likes
        1. New conversation
        2. Rob MacLachlan‏ @robamacl 30 Oct 2018
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          Replying to @Meaningness

          Nerd sniped! Feel free...

          1 reply 0 retweets 0 likes
        3. Rob MacLachlan‏ @robamacl 30 Oct 2018
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          Replying to @robamacl @Meaningness

          Oops, the cross slide is hitting the disc. Maybe if I put the tool like this? No, duh, the disc is spinning the wrong way on that side. New to this lathe stuff.pic.twitter.com/SSmgMbHILI

          1 reply 0 retweets 0 likes
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