You say that some work is already done on thread milling. Searching the forum I see a little chatter about something malmpert is working on, but not much more than that.

Can you point me in the direction of some thread milling code or branch that I could look into.

It would be nice if helix can be used for thread milling. For thread milling you will need to retract the depth of the thread + clearance.

Sliptonic, Thanks for the summery (and all your work). Wish I could have listened in but life had other plans