On 06/04/2017 08:56 PM, Jon Elson wrote:
On 06/04/2017 08:22 PM, tom-...@bgp.nu wrote:
I have to increase the depth a couple thou and re-cut the thread to
cut it deep enough.
Due to machine spring as well as workpiece deflection, a second pass
without even changing the X depth will take off some material. So, if
you turn it down, measure, and then feed in a few thousandths in Z and
cut again and get the desired depth, that will get you a too shallow
cut if you try to cut at the same Z depth on the next part.
All these "Z"s should be "X"s. What I was trying to show was that two
passes of cutting without advancing X can keep reducing the diameter.
Jon
Jon
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