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  1. Bill, Lately you sound more and more like a...

    Bill,
    Lately you sound more and more like a consultant who gives advises outside his area of competence.

    One challenge with the motors of the newer Biax and at least some of the blue ones (I...
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    As Peter said, there should be no preload on the...

    As Peter said, there should be no preload on the nut and, any drag should be set by adjusting the gibs, compatible with the irregular wear.
    Like Richard said, on worn machines, you could "gently"...
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    I'd bet that it is a combination of all the...

    I'd bet that it is a combination of all the above. Moving a machine that has been bolted to the floor and carefully leveled is a huge pain and extra cost that he can avoid in house. Moreover, having...
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    Wes, I think you hit the nail on the head: much...

    Wes,
    I think you hit the nail on the head: much less demand than in the past translates in either sporadic runs or companies dropping this line of products.
    Gary Martin still casts a few...
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    I agree that Loctite assembly compound should be...

    I agree that Loctite assembly compound should be a good enough solution.
    Moreover, I am pretty sure that the cause of the chatter is somewhere else and not in the spindle.
    Check the "lost motion"...
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    I don't do much grinding. I suspect that the...

    I don't do much grinding. I suspect that the professionals hold off because I believe there is too much diamond-to-diamond variability.

    Paolo
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    I think that the idea there is to expand the air...

    I think that the idea there is to expand the air and fluids captured at the bottom of the blind hole where the pin is wedged. It works only if that hole is indeed blind and the pin does seal all...
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    Add a few drops of dish soap to it: you will...

    Add a few drops of dish soap to it: you will produce an intimidating mass of gray bubbles. I have done it a few times in the sink of the lab.

    Paolo
  9. I agree with Joe: that hole is clearly crooked...

    I agree with Joe: that hole is clearly crooked toward the front and, likely, it was made before this backing plate was adapted to the current chuck. The hole cane through when they machined the new...
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    Kenlip, If you thing in terms of a single cycle...

    Kenlip,
    If you thing in terms of a single cycle of six steps, you're perfectly right. The key is the following sentence:


    And, at the end of the six steps explanation, there is another important...
  11. One simple trick to remove seemingly stuck chucks...

    One simple trick to remove seemingly stuck chucks with threaded spindles is to cut a piece of 2x4 spanning more or less the distance between the back ways and the height of the spindle bore.
    Mount...
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    Kenlip, As Bryan_Machine clearly explained, the...

    Kenlip,
    As Bryan_Machine clearly explained, the two things are absolutely different.
    Let's try to better clarify the very obvious, first: in the case of lapping a granite plate (referring to the...
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    You're perfectly correct in citing Newton's third...

    You're perfectly correct in citing Newton's third law. But, unfortunately, you're incorrect in its interpretation, since the lapping requires you to move the plates relative to each-other, creating...
  14. Starrett has a similar one (I believe that is No....

    Starrett has a similar one (I believe that is No. 99).

    I will dig them out when I have a few minutes to spare.

    Paolo
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    I'm not very experienced with lapping, I mostly...

    I'm not very experienced with lapping, I mostly do scraping. Anyhow, I guess that the issue is that the plate on the top (the one that is being moved) is subjected to pressures and parts of it...
  16. A dovetail is formed by two surfaces (i.e. two...

    A dovetail is formed by two surfaces (i.e. two planes intersecting at an angle). Since it is practically impossible to use directly the line of intersection, the best method is to use a cylinder...
  17. Just a couple more clarifications on the great...

    Just a couple more clarifications on the great suggestions that you've received above.
    First, they assume you're using a new/very sharp endmill. A good thing to try is indeed to compare noise,...
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    Have you considered other "stamping techniques",...

    Have you considered other "stamping techniques", like electrolytical etching, or somehow rudimentary plunge EDM, or simple engraving? How deep do your punch marks need to be? How many items?
    Yes,...
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    And what do you mean by "arbitrarily large"? What...

    And what do you mean by "arbitrarily large"? What sizes?

    Paolo
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    Another thing to make sure of is that you aren't...

    Another thing to make sure of is that you aren't running the control circuit with the manufactured phase. Tat is, you need to energize them with one of the two wires that come directly from the 240V...
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    It is missing the piece of bed covering the gap...

    It is missing the piece of bed covering the gap (how much of a problem this is, it depends upon what you're planning to use this lathe for) and it looks like once it was equipped with a taper...
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    I think that this picture tells you quite a bit...

    I think that this picture tells you quite a bit about the wear.



    I agree that it is hard to judge the damage from the pictures supplied. But, from the last picture it looks like that the...
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    The "sad news" is that pretty much every photo...

    The "sad news" is that pretty much every photo editor released within the last several years recognize the orientation information in the images and, not only presents them in the correct...
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    Sorry, I'm rather slow in connecting the dots. If...

    Sorry, I'm rather slow in connecting the dots. If the VTL in question is the one from this thread (Price Filler Machine Shop in Roanoke, VA), I don't believe it had any clutch in the first place....
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    I don't have direct experience with Bullard VBMs....

    I don't have direct experience with Bullard VBMs. However, at Tuckahoe we do have two Bullard VTL, both driven with flat belt.
    The older one has a cone pulley and no clutch, The "younger one" (late...
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