On 10/13/2014 09:08 AM, andy pugh wrote:
On 13 October 2014 16:55, Dave Caroline <dave.thearchiv...@gmail.com> wrote:
I think is one was thinking of strength of the teeth it is not
optimal, but old designs were often ner-enuf
I could use this variant:
https://picasaweb.google.com/lh/photo/v11RMmOz5B-1dOgTnla3V9MTjNZETYmyPJy0liipFm0?feat=directlink
Better tooth geometry, worse ramp shape.
My vote is for putting the workpiece in an A axis and using a smallish
diameter end mill to side mill each quarter helix. This will leave a
fillet on each ramp end, which can be cleaned up with an end mill or
slitting saw. Visual aid attached.
--
Kirk Wallace
http://www.wallacecompany.com/machine_shop/
http://www.wallacecompany.com/E45/
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