don’t know where to get .062 from
ftp://machsupport.com/Mach3/Would going to a Smoothstepper setup help?
I don't follow info on the Smooth stepper anymore and no longer use it so you need to go to that site to find out what is working these days.
You need not purchase a Smooth stepper to do threading. PP works fine.
Do you mean actually running the vfd of itself, this means reprogramming so it does not read any of the mach commands?
Yes, you set the spindle speed on the vfd manually ( I know nothing of your vfd so can't help you).
You can use the Simple Threading wizard to generate code for threading.
Also you may want to have a read of Threading on the Lathe MACH3 which can be found in Members Docs.
I don’t see how it interacts with Mach after that
You set it manually but I don't know what is telling your vfd what the actual spindle speed is, so if the rpm varies then the vfd is trying to keep the rpm constant
and while it's doing that Mach is reading the rpm via an index and thus is planning the next pathing based on what it read, so one system is fighting the other.
That is not good. Threading was changed a long time ago to work but it only uses simple single index. External motion devices such as the SS take care of threading instead of it being done by Mach via the PP.
RICH