[modeleng] Re: Ideas wanted

At 09:01 AM 2/28/07 -0500, you wrote:
>Or, could you grind a single point form tool - Jeff

Alan,
      This is my first thought also, and it could be done in quarters as
well as halves, however the problem would be, how to hold the sticks during
flycutting?  It's a very small section with very little rigidity.
     This would be a fiddley business, but it comes to mind that one could
make two jigs.  The first would hold the rectangular stock under a
continuous clamping bar along the off-side.  In this jig the first quarter
pass would be made along the near side, then reverse the stock and make the
second quarter pass.  The second jig would be slotted to cradle the
finished elipse half, again under a continuous clamping bar, where the
remaining quarter passes would be made as in the first operation.
     To insure alingnment perhaps the sticks could be made over-length so
that a short section of rectangle is left on an end.  This "key" would then
rest in the slot in the jig assuring that the quarters would be milled
identically at 90 degr.  I'm sure I've missed something but if I had the
job that's what I would try first.


Regards,
Harry Wade
Nashville  Tennessee

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