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Re: A2Z Precision Leadscrew Installation Goes Awry!

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  • Bill
    Beautifull idea, I will have to remember it.
    Message 1 of 17 , Aug 14, 2011
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      Beautifull idea, I will have to remember it.

      --- In SherlineCNC@yahoogroups.com, Andy M <trumpy81@...> wrote:
      >
      > GDay All,
      >
      > Bill, I was referring to the standard Sherline table and leadscrew. I
      > don't know why, but I called the screw in question 2-56, but as you
      > pointed out, it is in fact 5-40.
      >
      > Anyhow, I managed to get the broken ball end out of the 5-40 screw.
      > First, I let the whole assembly sit in the freezer overnight and then I
      > realised that I could remove the Nema23 motor mount by simply screwing
      > of the preload nut. That leadscrew is very long when screwing a nut off
      > by hand I can tell ya ... lol
      >
      > After that I was able to get the ball end rocking in the cap screw. I
      > applied some heat, as now there were no bearings to worry about, and a
      > few gentle taps on the bench and out came the ball end of the Allen key.
      >
      > Now all I have to do is wait for my Y-Axis components to arrive and I'll
      > be back in business.
      >
      > Thanks to everyone who replied. Without your suggestions I may not have
      > been able to do it.
      >
      > --
      > Regards
      > Andy M
      >
      > Thunderbird 5.0
      >
      > On 14/08/2011 5:20 PM, Bill wrote:
      > > I may be confused are you talking about the 5-40 cap screws that go down
      > > the center of the lead screw. If so, when I look at my extended X lead
      > > screw it is about 2 inches longer than the X table. I wonder if you cut
      > > it off and found a way to machine a new taper and drill and tap a new
      > > hole you could save it. The first challenge would be how to hold it in
      > > the lathe. I have machined bolts by sawing threw one side of a nut and
      > > putting them in a 4 jaw.
      > > If you measure your lead screw and you have the two inches as mine does
      > > you could try to drill and tap on the other end. If you fail you still
      > > could use the lead screw without the extra length. Good Luck you will
      > > need it.
      >
    • Andy M
      GDay All, Bill, just remember NOT to use the ball end Allen key to tighten or loosen a screw, it will save you a lot of grief .... lol -- Regards Andy M
      Message 2 of 17 , Aug 15, 2011
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        GDay All,

        Bill, just remember NOT to use the ball end Allen key to tighten or
        loosen a screw, it will save you a lot of grief .... lol

        --
        Regards
        Andy M

        Thunderbird 5.0

        On 15/08/2011 10:37 AM, Bill wrote:
        > Beautifull idea, I will have to remember it.
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