more Re: mill threading
Posted by
ballendo@y...
on 2000-11-14 21:57:58 UTC
Alan,
Just after I hit "send" I realised you could also set this up to cut
one flank of the thread at a time. Just "return" the x axis a little
less (conventional milling) or a little more (climb milling)than the
threaded length each pass. One way to do this would be to use a G91
(incremental) X.010 (plus or minus) at the beginning of each "angled
line". This would cause the cutter to cut more with one side than the
other.
Hope this makes sense.
Ballendo
P.S. The .010 is just an example. the REAL number would relate to
thread angle and depth of cut taken each pass.
P.S.S. Realise if you do this that the finished threads' position
will "shift" since you are not going straight in. Take this into
account.
Just after I hit "send" I realised you could also set this up to cut
one flank of the thread at a time. Just "return" the x axis a little
less (conventional milling) or a little more (climb milling)than the
threaded length each pass. One way to do this would be to use a G91
(incremental) X.010 (plus or minus) at the beginning of each "angled
line". This would cause the cutter to cut more with one side than the
other.
Hope this makes sense.
Ballendo
P.S. The .010 is just an example. the REAL number would relate to
thread angle and depth of cut taken each pass.
P.S.S. Realise if you do this that the finished threads' position
will "shift" since you are not going straight in. Take this into
account.