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81568Re: Dividing Qs

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  • gennady_123
    Mar 1, 2013
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      I guess that both 40 and 60 will divide 5 as well.

      --- In atlas_craftsman@yahoogroups.com, john baird <alexandra.leaving@...> wrote:
      >
      > The 40 hole circle will divide 2,4,8,10,20,40
      > The 50 hole circle will divide 2,5,10,25,50
      > The 60 hole circle will divide 2,3,4,6,10,12,15,20,30,60
      >
      > So you could make, teeth, flats, splines or holes, to suit.
      > Regards jb
      >
      > --- On Thu, 28/2/13, smudgemo1 <rchristbaum@...> wrote:
      >
      > > From: smudgemo1 <rchristbaum@...>
      > > Subject: [atlas_craftsman] Dividing Qs
      > > To: atlas_craftsman@yahoogroups.com
      > > Date: Thursday, 28 February, 2013, 5:02
      > > So on my recent vacation which
      > > started and ended with five-hour flights, I took Ivan Law's
      > > "Gear Cutting" and Harold Hall's "Dividing" books.  It
      > > doesn't appear to be listed in the 12x36 Atlas manual, but
      > > does anyone know how many teeth the bull wheel has? 
      > > What about the holes drilled in the side (which appear to be
      > > set between each tooth presumable totaling the same
      > > number)?  There is a pin mounted in the lathe's case
      > > that engages those holes.  Seems perfect for dividing
      > > if the number of teeth/holes are a useful number, right?
      > >
      > > I tried to grab a photo, but the camera's card isn't
      > > cooperating, and I suspect anyone that knows the answer
      > > doesn't need a photo. 
      > >
      > > Nothing urgent, but I'd like to investigate possibilities to
      > > better understand the books noted above.
      > >
      > > Thanks,
      > > Ryan
      > >
      > >
      > >
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