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  1. I've tested a few...

    First, on quantification. I am very much a fan of quantifying things. One of my favorite quotes is from Sir Kelvin (William Thompson):



    HOWEVER, numbers are meaningless without an...
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    I get a board error as well. GsT

    I get a board error as well.

    GsT
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    So are you cutting your dies with reamers, boring...

    So are you cutting your dies with reamers, boring bar, or ??? Inquiring minds and all that.

    GsT
  4. Thread: Pillars

    by GeneT
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    Do you not do anything to compress and hold the...

    Do you not do anything to compress and hold the action (rubber bands, etc.) into the bedding?

    Thanks,

    GsT
  5. Thread: Pillars

    by GeneT
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    Thanks for these posts Al. In what way is Pro...

    Thanks for these posts Al. In what way is Pro Bed the best?

    GsT
  6. Thread: Pillars

    by GeneT
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    I'm very interested in seeing more. And thanks...

    I'm very interested in seeing more. And thanks for what you have posted!

    GsT
  7. You can get an accurate distance with a hiker's...

    You can get an accurate distance with a hiker's GPS.

    If different rangefinders give you different answers, then all but one, or all of them are wrong. That could be due to unfavorable conditions...
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    Why is that? This is the first time I've heard...

    Why is that? This is the first time I've heard that advice.

    GsT
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    Thanks for your replies Dan, good stuff! GsT

    Thanks for your replies Dan, good stuff!

    GsT
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    Thanks for that! I think I've learned a few...

    Thanks for that! I think I've learned a few things (in a book-learning, not skill-developing sort of sense). Hopefully you'll entertain some dumb questions. Can you explain "Helium for increase in...
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    The problem with using the tailstock (though it...

    The problem with using the tailstock (though it may not be a problem) is that any misalignment between tailstock and spindle persists. You can put something in the spindle and dial it to zero...
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    How are you checking shoulder-to-tenon...

    How are you checking shoulder-to-tenon perpendicularity? I can see this going a dozen different ways...

    GsT
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    It's entirely dependent on how much and how...

    It's entirely dependent on how much and how aggressively you inlet the stock prior to bedding. Bedding is like wiring, it's way better to have way too much than to have a tiny bit too little. I...
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    I have seen that very thing ambitiously applied...

    I have seen that very thing ambitiously applied across all dimensions in drawings where +/- 0.025 would have been fine just about everywhere. OTOH, there's an argument to be made that expressing a...
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    Well, I'd be a liar if I said I'd tried it, but...

    Well, I'd be a liar if I said I'd tried it, but having given it a little thought, here's my thinking: the straight tip on my Co-Ax (Blake) is ~1.3" long and fairly thick. After that you hit the...
  16. Thread: will this work ?

    by GeneT
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    Huge +1. I recently moved, which means I...

    Huge +1.

    I recently moved, which means I sorted through my 'stuff'. I had tools and gauges I don't even recognize. People tell me I have a good memory, but my recollection of my own tooling says...
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    Well, there's a difference between dialing in to...

    Well, there's a difference between dialing in to <0.0001" and holding a 0.0001" tolerance. The former can be done, with patience. But holding a tolerance (e.g. machining a diameter to 1.0000" +/-...
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    Vimeo is pretty gun-neutral. Full30.com is pro...

    Vimeo is pretty gun-neutral. Full30.com is pro gun, but nobody has heard of them...

    GsT
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    I don't believe there's a real danger in the sludge

    The first thing to note is the absence of health warnings. Machining aluminum is a common enough task that if the byproducts were harmful, I'd expect to have seen ample warnings - compare to...
  20. No, the TBAS is particularly designed to take out...

    No, the TBAS is particularly designed to take out that non-concentricity as well as lineal misalignment. If the bore were concentric to the outside and straight, a regular chuck would do (well,...
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    There's a lot of good info on indicators here:...

    There's a lot of good info on indicators here: http://www.longislandindicator.com/. I was surprised to find out that they don't think too highly of (newer) Mitutoyo or B&S. Their top pick is...
  22. I haven't tried it, but Steve Acker once...

    I haven't tried it, but Steve Acker once demonstrated putting a bearing surface on a barrel by installing a sleeve attached with bondo that he then trued between centers before using it as a bearing...
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    Yes, and that's how I perceive this thread. I...

    Yes, and that's how I perceive this thread. I very much value considered input from others. Thanks for lots of food for thought Butch!

    GsT
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    Thanks for the clarification Butch. Yes, you...

    Thanks for the clarification Butch. Yes, you have two points dialed in. In theory the advantage of the Gordy method is that you're dialing in the first bit (let's say an inch) of the bore, rather...
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    That's a great question Butch, and I've reversed...

    That's a great question Butch, and I've reversed my thoughts on it a couple of times as I sit here pondering it. My answer above, was really addressing the Gordy method vs chambering between centers...
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