On 2016-12-04, Jim Wilkins wrote:
"DoN. Nichols" wrote in message
...
On 2016-12-03, Jim Wilkins wrote:
[ ... ]
Yep. Universal mill (swivel table) and the geared index head
which you mentioned below and I snipped. I think that the term
"Universal mill" was not mentioned, but the rest was.
A modern vertical mill can cut a spiral (helix) without needing a
swiveling table by tilting the head sideways.
O.K. Thanks. I had not thought of that.
Enjoy,
DoN.
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