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Re: [GrizHFMinimill] Rotary tables

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  • Barry Young
    Hi Ed: it is better but not essential to have a rotary table which is designed to work vertically as well as horizontally. You can also attach a horizontal
    Message 1 of 41 , Mar 6, 2002
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      Hi Ed:

      it is better but not essential to have a rotary table
      which is designed to work vertically as well as
      horizontally. You can also attach a horizontal rotab
      to an angle plate if you need to use it vertically.

      The tapered hole is for mounting accessories in the
      center of the table quickly. Most places I have worked
      the rotary tables are counterbored and have a parallel
      walled hole. This is because it is way easier and
      faster to make a spigot (The alignment spud which goes
      into the hole) that is straight rather than tapered.
      The hole is also used to get the rotab centered under
      the spindle of the machine it is used on.

      Barry Young

      --- rabeet00 <rabeet00@...> wrote:
      > I have my eyes on getting a rotary table. At the
      > moment, the ones I
      > am considering are the 6" and the "Phase II" 4" at
      > LMS. I found a
      > similar Phase II 6" at MSC, but I prefer to spend my
      > money at LMS if
      > it is feasible.
      > Anyone have any suggestions as to brand, etc.?
      > Better to have a
      > vertical/horinzontal vs. just horizontal?
      > And what the heck is the tapered hole used for?
      > Seems like one could
      > put a dead center in it to make aligning the table
      > with the spindle
      > easier or something like that.
      > Thanks,
      > Ed
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    • Bill
      thankyou for all your responses bill
      Message 41 of 41 , May 17, 2013
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        thankyou for all your responses

        --- In GrizHFMinimill@yahoogroups.com, Jwc C <jwcc8@...> wrote:
        > Bill....
        > I purchased a new tilting rotary table (4 inch diameter) for $89 two years ago. (ebay)
        > Although not perfect as received, it has served me well, in general and in my current project, a 4 cylinder IC engine.
        > There was no spec sheet, or instructions with it, so I could not purchase additional accesories, like indexing plates.  Usually you get what you pay for, and I am satisfied I got better than my money's worth ( a bargain). 
        > The center hole was slightly off center, but was corrected in my 9x20 Jet lathe.
        > Am now in the process of making indexing and angle plates. It was  fun making the custom Excel tables and calculating how many plates and hole patterns to make.
        > If you will be doing high precision work, make shure to get the specs before you purchase.
        > Important specs are table diameter, concentricity and backlash adjustment, type of bearings degrees per crank turn, and accesories if any.  Used tools may be a good buy, but buying abused tools will be a headache, especially if you are new to machinery and tools.
        > JWCc
        > --- On Tue, 5/14/13, Bill <bemac502000@...> wrote:
        > From: Bill <bemac502000@...>
        > Subject: [GrizHFMinimill] Rotary tables
        > To: GrizHFMinimill@yahoogroups.com
        > Date: Tuesday, May 14, 2013, 10:58 AM
        > Hi was wondering if anyone has any experience with the rotary tables on e-bay  I  know they aren't real  good ones  but was wondering if they are decent?
        > Thanks
        > Bill
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