Re: [CAD_CAM_EDM_DRO] How does a polygon turnign lathe work?

It would not.
Threading is a special case, and needs the isthreading() flag enabled,
and then waits for spindle speed sync and stuff ...
It is neither instant, nor applicable to a given set of axes(), just
spindle and index, with slowdown/speedup as needed.

It might perhaps be modified, but thats another matter entirely.
And of course, all controllers are a special case. NcPod, SS, Centipede, etc

It could be done with servos, and clever g-code form a macro, but this
means the mechanicals have to work within their possible limits (just
like emc2 and everything else).
So if something is slow/fast/underpowered/overwhelmed you get an error
condition.

Best part about servos, is that they lose sync, fault, and stop making
the problem worse.
Wont mean you dont do damage, but limits it (usually to a toolbit,
insert, or workpiece, imo).

>
> I wonder if Mach3 sync feature for threading would work synchronizing the
> spindle to the mill head motor?
>

[Non-text portions of this message have been removed]