SPIYDA,
Suggest you have a look at "Threading on The Lathe - Mach3 Turn" write up as it has a lot of info on threading.
On page 44 you will find how to set and what settings are used for Cut Type and Infeed Type ( it's the only place you will find
that info documented).
All the cut types do work, G32 and G76 work, and also the wizards.
For deep threads i would suggest the alternate flank cutting. Note that spring passes will be full cutting of the profile.
One of the interesting things about using alternate flank cutting is that you can cut an acme type thread with a sharp v type
cutter. You just restrict the depth of the full depth.
I would strongly suggest that anyone doing threading test out their lathe before cutting an actual piece.
You really need to know just what to expect. Alternate flank works great ....but .....if your late system is not accurate
the results can be bad IE; won't be able to hold the tolerance, spring passes may be far to deep etc. Be attentive to
the formed chip as it tells you a lot.
User should always run the "calc number of passes" since that will warn you if velocity settings are exceeded.
Take into consideration motor torque available to velocity.
Hope the above helps you out,
RICH
REF TO THE WRITE UP:
- Support>Documentation
- Members Docs>
http://www.machsupport.com/forum/index.php/topic,13017.msg85313.html#msg85313