bob wrote:
I want to make a wood screw for a vise(2in. dia). I have tried using
dried and green oak and 3 tpi. The threads for the nut cut very
nicely
but the outside threads are a mess. Lots of chipping and tearing. Is
it
the wood, the tool grind ,or me? I have also tried cherry and it was
worse than oak. My brother ground the tool for the inside threads and
I
ground the tool for outside and am a relative clutz so I hope it is
just the grind.
Anyone with experience doing this?
Thanks,
Bob

Hello Bob,
you are cutting the male thread? I have heard [not seen] of it
being done, using a Dremel with the appropiate shaped cutter
burr,mounted on the toolpost and cutting at whatever t/p/i needed.
Worth a try?
All the best for now,
John.