On Sat, 26 Feb 2011 22:34:48 -0500, you wrote:

>Is there a G code to break the mile long Slinky produced while
>turning a part on the lathe; similar to G73 for drilling?

Hi Don - you shouldn't be making long ribbons, but with some materials
it's hard to avoid.

Increase Feed, depth of cut or speed or a combination of those that
suit.

If your lathe cant handle more depth of cut, just increase feed. 

Use a chip breaker tool.

If it's a home ground tool, grind a groove behind and parallel to the
cutting edge. If inserts, read the manufacturers specification and try
and cut as recommended.

On small lathes it's often impossible to attain suggested feeds and
speeds, if that's the case use finishing inserts with a tight chip
breaker groove and up the feed rate for roughing.

Use a negative rake tool - only problem is they generally need more
depth of cut and feed.

Sadly, the lack of jog in feed hold doesn't make it easy to remove them!

Steve Blackmore
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