Yes. I'm still waiting for my M8x1 LH tap which would seem to have been lost in the mail.
... the method that I went for ... ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?????????????????????????????????????????????????????????????? ... requires a RH thread on the lead screw.
Now I get it.
... have 4 lead screws two each LH and RH thread metric and imperial ... ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??????????? ... can do almost any thread. ?
I have both the thread cutting gears (150 250) and the lathe threading attachment (150 250) with a 1.0mm follower. They came with the U3 package when I purchased it but have not had a chance to use either of them.
For the tipe of work I have always done, I am very comfortable using taps and dies. And found the lathe threading attachment cumbersome/complicated to set up.
The thread cutting gears attachment seems to be a much better option in case I need to cut single point threads. At the? moment I am still in the process of setting up my work space and getting the tooling I need to actually be able to make the tools I need.? 8^¡ã
My present problem is reducing the carrier feed backlash which is why I was interested in Clive's modifications.