Well, though next use of my boring head will (probably) be one for which I do not need to know the answer to this,
what is the correct way of doing repeated cuts without changing the settings of the cutter?
I mean, is it 'better' :
a) to raise the cutter while the spindle is running: You'll gain a nice spiral into the finished bore, dependent on the rasing speed.
b) to stop the spindle, then raise the cutter: that would draw a single straight line.
I tend to use the second option on finishing cuts, on roughing cuts .. I won't tell.
Much depends on the materials, and whether a line, however thin, would be acceptable or not. After the final cut, I can (usually) back the head slide a bit before rasing the quill.
Any big NO-NOs? Common ways, .. ?
Marcello
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PS. When boring on the lathe, I cheat without shame: just fit a DI to the apron and move the cross slide back and forth to the same reading.