Re: is posible stepper motor in continuos rotation?

thanks for your answer.

The machine is cnc filament winding machine but with polar winding.
this machine has one trhead in reprap (cnc routers,mills and hybrid reprapping), but the winding is´nt polar.
for polar machines the velocity of the spindle is diferent in the edges, that in the rest of the long.
I ask for cnc lathe, because is the most similar machine that i know.
The GRBL don´t support continuos rotation of 1 axe.
The smoothieware i´m not sure. In reprap, the firmware is probed (almost for 3d printers).
the marlin modified could be the firmware correct, but need modifications.

thanks for the attention.