G76 problem ( i think !! )

[m_c]

Does it actually pause, or does it continue to retract very slowly?

There is a 'glitch' with turning, external motion controllers, and certain versions of Mach3, where at the end of the threading move when things should switch from mm/rev to mm/min, it changes mode but doesn't update the feedrate. So if you were doing say a 1mm pitch thread, it'll switch to 1mm/min and retract at that speed until the retract move is done, at which point the feedrate will update to the correct rate.

It's a known problem with later versions of Mach3 that CS-Labs can't do a tapered lead out, and you have to have a groove at the end of the thread. I've also witnessed it when using Mach 3 with my KFlop controlled lathe.